[ Test Suite gmg3 | Hossa ]

Positions 21 - 30


[Diagram of position #21]

Test position #21

White to move


FEN :          3k4/3P3p/P2R2p1/6p1/8/6PP/1r6/5K2 w - -
Best Move :    a7 
Position ID:  "Larsen/Endings GMG 3.21"

 depth   value    time    nodes pv
    1    +2.67    0.00        2 1.a7 
   <1>   +2.67    0.00       17 1.a7 
    2    +2.46    0.00       58 1.a7 b2a2 
   <2>   +2.46    0.01      123 1.a7 b2a2 
  2/3    +2.30    0.01      464 1.g4 b2a2 2.Kg1 
   <3>   +2.30    0.01      859 1.g4 b2a2 2.Kg1 
    4    +2.31    0.01     1304 1.g4 b2a2 2.Kg1 h5 3.d6xg6 h5xg4 
   <4>   +2.31    0.01     2312 1.g4 b2a2 2.Kg1 h5 3.d6xg6 h5xg4 
    5    +2.30    0.01     4098 1.g4 b2h2 2.d6d3 h2a2 3.d3d6 
   <5>   +2.30    0.03     6154 1.g4 b2h2 2.d6d3 h2a2 3.d3d6 
  9/6    +2.12    0.06    22501 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2a2 
   <6>   +2.12    0.06    23623 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2a2 
    7    +2.30    0.07    28448 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2f2 
                                4.Kg1 f2a2 
   <7>   +2.30    0.09    40963 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2f2 
                                4.Kg1 f2a2 
    8    +2.30    0.10    52731 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2f2 
                                4.Kg1 f2a2 5.Kf1 
   <8>   +2.30    0.14    62753 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2f2 
                                4.Kg1 f2a2 5.Kf1 
    9    +2.13    0.20   106434 1.Kg1 b2a2 2.Kh1 a2b2 3.g4 b2f2 
                                4.Kg1 f2a2 5.Kh1 h5 6.d6xg6 h5xg4 
! 2/9    +2.72    0.42   232992 1.d6f6 
!   9    +3.47    0.57   333886 1.d6f6 
!   9    +4.61    0.71   420398 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 g4 6.a8e8 Kf5 
                                7.e8f8 Ke5 8.h3xg4 
   <9>   +4.61    0.75   432804 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 g4 6.a8e8 Kf5 
                                7.e8f8 Ke5 8.h3xg4 
   10    +4.71    1.00   592692 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kg2 Ke4 
                                7.a8f8 
  <10>   +4.71    1.12   674559 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kg2 Ke4 
                                7.a8f8 
   11    +5.07    2.21  1368959 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.g4 Kf6 
                                7.Kg2 Ke5 8.Kf3 h5 
  <11>   +5.07    2.57  1598734 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.g4 Kf6 
                                7.Kg2 Ke5 8.Kf3 h5 
   12    +5.11    4.46  2849441 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 g4 
                                4.a7a8Q a2xa8 5.f8xa8 g4xh3 6.a8a7 Ke6 
                                7.a7xh7 Kf5 8.h7xh3 Kg4 9.Kg2 
  <12>   +5.11    5.40  3467059 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 g4 
                                4.a7a8Q a2xa8 5.f8xa8 g4xh3 6.a8a7 Ke6 
                                7.a7xh7 Kf5 8.h7xh3 Kg4 9.Kg2 
   13    +5.49    9.96  6442076 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kf2 Kf6 
                                7.a8a5 Ke6 8.a5xg5 Kf6 9.g5d5 
  <13>   +5.49   16.01 10347516 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kf2 Kf6 
                                7.a8a5 Ke6 8.a5xg5 Kf6 9.g5d5 
   14    +5.61   34.75 22027202 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kf2 Kf6 
                                7.Kf3 Kf5 8.a8a7 h5 9.a7a5 Kf6 
                                10.a5a6 Kg7 11.Ke4 
  <14>   +5.61   51.62 32976958 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kf2 Kf6 
                                7.Kf3 Kf5 8.a8a7 h5 9.a7a5 Kf6 
                                10.a5a6 Kg7 11.Ke4 
  <15>   +5.61    1:00 38591204 1.d6f6 Kxd7 2.a7 b2a2 3.f6f8 Ke6 
                                4.a7a8Q a2xa8 5.f8xa8 Kf5 6.Kf2 Kf6 
                                7.a8a6 Ke5 8.a6a5 Kf6 9.Kf3 

Computed move :   d6f6
NPS:              643186
no solution found [:-( [20/21]!
[Diagram of position #22]

Test position #22

Black to move


FEN :          8/8/5R1P/8/2K5/7r/4p3/4k3 b - -
Best Moves:    Kd2 Rh1 
Position ID:  "Larsen/Endings GMG 3.22"

 depth   value    time    nodes pv
    1    +0.00    0.00        3 1... h3xh6 2.f6xh6 
  2/1    +4.78    0.00        5 1... Kd2 
   <1>   +4.78    0.00       53 1... Kd2 
?   2    +0.64    0.00      330 1... Kd2 2.f6d6 Ke3 
   <2>   +0.64    0.00      431 1... Kd2 2.f6d6 Ke3 
!   3    +1.06    0.02      576 1... Kd2 
!   3    +1.81    0.02      719 1... Kd2 
!   3    +3.29    0.02      896 1... Kd2 2.f6d6 Ke3 3.d6d3 Kf2 
                                4.d3xh3 e2e1Q 
   <3>   +3.29    0.02     1243 1... Kd2 2.f6d6 Ke3 3.d6d3 Kf2 
                                4.d3xh3 e2e1Q 
!   4    +3.71    0.02     1801 1... Kd2 
!   4    +4.46    0.02     2030 1... Kd2 
!   4    +4.52    0.02     2317 1... Kd2 2.f6d6 Kc2 3.d6e6 Kd2 
   <4>   +4.52    0.03     2904 1... Kd2 2.f6d6 Kc2 3.d6e6 Kd2 
    5    +4.51    0.03     4804 1... Kd2 2.f6d6 Kc2 3.d6e6 h3h4 
                                4.Kd5 Kd2 
   <5>   +4.51    0.03     5782 1... Kd2 2.f6d6 Kc2 3.d6e6 h3h4 
                                4.Kd5 Kd2 
    6    +4.61    0.05    11700 1... Kd2 2.f6d6 Kc2 3.d6e6 h3h4 
                                4.Kc5 Kd2 5.e6d6 Ke3 6.d6e6 Kf2 
   <6>   +4.61    0.05    15342 1... Kd2 2.f6d6 Kc2 3.d6e6 h3h4 
                                4.Kc5 Kd2 5.e6d6 Ke3 6.d6e6 Kf2 
! 2/7    +5.03    0.09    43168 1... h3h1 
!   7    +5.78    0.12    61527 1... h3h1 
!   7    +8.78    0.17    87460 1... h3h1 2.f6d6 Kf2 3.d6f6 Ke3 
                                4.f6e6 Kd2 5.e6d6 Kc1 6.h7 h1h4 
                                7.d6d4 e2e1Q 
   <7>   +8.78    0.19    90093 1... h3h1 2.f6d6 Kf2 3.d6f6 Ke3 
                                4.f6e6 Kd2 5.e6d6 Kc1 6.h7 h1h4 
                                7.d6d4 e2e1Q 
!   8    +9.20    0.30   164894 1... h3h1 
!   8    +9.18    0.39   224578 1... h3h1 2.Kd4 Kd2 3.f6f2 h1h4 
                                4.Kd5 Ke3 5.f2f6 h4d4 6.Kc6 e2e1Q 
   <8>   +9.18    0.48   303755 1... h3h1 2.Kd4 Kd2 3.f6f2 h1h4 
                                4.Kd5 Ke3 5.f2f6 h4d4 6.Kc6 e2e1Q 
!   9    +9.60    0.84   549311 1... h3h1 
!   9    +9.65    1.11   742502 1... h3h1 2.f6d6 Kf2 3.d6f6 Kg3 
                                4.f6a6 e2e1Q 5.a6g6 Kf3 6.g6f6 Ke4 
                                7.f6e6 Kf5 8.e6d6 
   <9>   +9.65    1.34   906331 1... h3h1 2.f6d6 Kf2 3.d6f6 Kg3 
                                4.f6a6 e2e1Q 5.a6g6 Kf3 6.g6f6 Ke4 
                                7.f6e6 Kf5 8.e6d6 
!  10   +10.07    1.75  1197929 1... h3h1 
!  10   +10.82    2.23  1554003 1... h3h1 
!  10   +10.97    3.78  2561526 1... h3h1 2.Kb5 Kd2 3.f6d6 Kc2 
                                4.d6c6 Kb1 5.Kc4 h1xh6 6.c6c5 e2e1Q 
                                7.Kd4 e1d1 8.Ke4 Ka2 
  <10>  +10.97    5.58  3747484 1... h3h1 2.Kb5 Kd2 3.f6d6 Kc2 
                                4.d6c6 Kb1 5.Kc4 h1xh6 6.c6c5 e2e1Q 
                                7.Kd4 e1d1 8.Ke4 Ka2 
   11   +11.24   10.00  6644577 1... h3h1 2.f6d6 Kf2 3.d6f6 Kg3 
                                4.f6g6 Kf4 5.g6f6 Ke5 6.f6f8 e2e1Q 
                                7.f8e8 Kf6 8.e8h8 h1h4 9.Kb5 e1e5 
                                10.Kc6 h4xh6 
  <11>  +11.24   16.67 11024438 1... h3h1 2.f6d6 Kf2 3.d6f6 Kg3 
                                4.f6g6 Kf4 5.g6f6 Ke5 6.f6f8 e2e1Q 
                                7.f8e8 Kf6 8.e8h8 h1h4 9.Kb5 e1e5 
                                10.Kc6 h4xh6 
!  12   +11.66   26.77 17665783 1... h3h1 
!  12   +11.83   40.75 27310006 1... h3h1 2.h7 h1xh7 3.f6d6 Kf2 
                                4.d6f6 Ke3 5.f6e6 Kd2 6.e6d6 Kc2 
                                7.d6e6 h7h4 
  <12>  +11.83    1:00 39786813 1... h3h1 2.h7 h1xh7 3.f6d6 Kf2 
                                4.d6f6 Ke3 5.f6e6 Kd2 6.e6d6 Kc2 
                                7.d6e6 h7h4 

Computed move :   h3h1
NPS:              663113
solution found [21/22], time: 0.00, points: 25, nodes: 53!
[Diagram of position #23]

Test position #23

Black to move


FEN :          8/2p5/5pK1/5R2/4k2P/p4P2/1r6/8 b - -
Best Move :    Kd3 
Position ID:  "Larsen/Endings GMG 3.23"

 depth   value    time    nodes pv
    1    +0.65    0.00        4 1... Ke3 2.Kxf6 
  2/1    +0.74    0.00       10 1... Kd3 2.Kxf6 
   <1>   +0.74    0.00       12 1... Kd3 2.Kxf6 
    2    +0.74    0.00       36 1... Kd3 2.Kxf6 
   <2>   +0.74    0.00       44 1... Kd3 2.Kxf6 
    3    +0.78    0.00      489 1... Kd3 2.f5a5 a2 3.Kxf6 
! 2/3    +1.16    0.00      991 1... Ke3 
!   3    +1.63    0.00     1357 1... Ke3 2.h5 a2 3.f5a5 
   <3>   +1.63    0.00     1391 1... Ke3 2.h5 a2 3.f5a5 
    4    +1.26    0.02     2499 1... Ke3 2.f5a5 b2b3 3.h5 
  2/4    +1.33    0.02     4083 1... Kd4 2.Kxf6 a2 3.f5a5 b2f2 
   <4>   +1.33    0.02     4209 1... Kd4 2.Kxf6 a2 3.f5a5 b2f2 
    5    +0.99    0.03     8428 1... Kd4 2.h5 a2 3.f5a5 b2g2 
                                4.Kxf6 g2f2 
  2/5    +1.31    0.03    12254 1... Ke3 2.f5a5 a2 3.a5a3 Kd4 
                                4.Kxf6 b2h2 
   <5>   +1.31    0.05    12863 1... Ke3 2.f5a5 a2 3.a5a3 Kd4 
                                4.Kxf6 b2h2 
    6    +1.15    0.06    20874 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.Kxf6 b2h2 5.h5 h2xh5 6.a3xa2 Kxf3 
   <6>   +1.15    0.06    24457 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.Kxf6 b2h2 5.h5 h2xh5 6.a3xa2 Kxf3 
    7    +1.11    0.11    41931 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.Kxf6 b2h2 5.Ke6 h2xh4 6.a3xa2 Kxf3 
  3/7    +1.18    0.19    86349 1... Kd3 2.f5a5 a2 3.Kxf6 b2f2 
                                4.Ke6 Kc3 5.Kd5 
   <7>   +1.18    0.19    86349 1... Kd3 2.f5a5 a2 3.Kxf6 b2f2 
                                4.Ke6 Kc3 5.Kd5 
    8    +0.89    0.30   153086 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 
  2/8    +1.11    0.34   178230 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.Kxf6 b2h2 5.Ke6 Kg3 6.h5 h2xh5 
                                7.a3xa2 Kxf3 
   <8>   +1.11    0.45   238183 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.Kxf6 b2h2 5.Ke6 Kg3 6.h5 h2xh5 
                                7.a3xa2 Kxf3 
    9    +1.12    0.61   333792 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.h5 b2g2 5.Kxf6 g2h2 6.Ke6 c5 
                                7.Kd6 h2xh5 8.a3xa2 Kxf3 
   <9>   +1.12    0.70   383305 1... Ke3 2.f5a5 a2 3.a5a3 Kf4 
                                4.h5 b2g2 5.Kxf6 g2h2 6.Ke6 c5 
                                7.Kd6 h2xh5 8.a3xa2 Kxf3 
!3/10    +1.54    2.06  1217810 1... Kd3 
!  10    +0.99    2.19  1289064 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc2 
  <10>   +0.99    2.19  1289066 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc2 9.b5a5 Kb2 
                                10.a5b5 Kc2 11.b5a5 
   11    +0.99    2.83  1701026 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc2 9.b5a5 Kb2 
                                10.a5b5 
  <11>   +0.99    3.03  1819408 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc2 9.b5a5 Kb2 
                                10.a5b5 Kc2 11.b5a5 Kb2 12.a5b5 Kc2 
   12    +0.99    4.78  2938682 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc3 9.b5a5 Kb2 
                                10.a5b5 
  <12>   +0.99    5.45  3372900 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc3 9.b5a5 Kb2 
                                10.a5b5 
   13    +0.99   11.81  7272846 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc3 9.b5a5 
  <13>   +0.99   13.28  8282999 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc3 9.b5a5 
   14    +0.86   32.59 20345352 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc3 9.b5a5 Kb3 
                                10.Kg7 Kb2 11.a5b5 Ka3 12.b5a5 Kb2 
  <14>   +0.86   38.00 23974939 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 8.a5b5 Kc3 9.b5a5 Kb3 
                                10.Kg7 Kb2 11.a5b5 Ka3 12.b5a5 Kb2 
  <15>   +0.86    1:00 38239339 1... Kd3 2.f5a5 a2 3.h5 Kc2 
                                4.h6 Kb1 5.h7 b2h2 6.a5b5 Kc2 
                                7.b5a5 Kb2 

Computed move :   Kd3
NPS:              637109
solution found [22/23], time: 2.06, points: 23, nodes: 1217810!
[Diagram of position #24]

Test position #24

White to move


FEN :          8/8/4r3/1PP2k2/2R5/5p1p/P6K/8 w - -
Best Move :    Kg3 
Position ID:  "Larsen/Endings GMG 3.24"

 depth   value    time    nodes pv
    1    +3.09    0.00        2 1.Kxh3 
   <1>   +3.09    0.00       27 1.Kxh3 
    2    +2.77    0.00       96 1.Kxh3 e6g6 
   <2>   +2.77    0.00      457 1.Kxh3 e6g6 
    3    +3.14    0.00      677 1.Kxh3 f2 2.Kg2 e6e2 
   <3>   +3.14    0.02      759 1.Kxh3 f2 2.Kg2 e6e2 
    4    +2.90    0.02     1781 1.Kxh3 e6g6 2.a4 f2 3.c4c1 
  6/4    +3.08    0.02     4967 1.Kg3 e6e3 2.c4f4 Ke5 3.f4xf3 
   <4>   +3.08    0.02     5769 1.Kg3 e6e3 2.c4f4 Ke5 3.f4xf3 
  2/5    +3.02    0.04    11161 1.Kxh3 e6g6 2.c4c1 g6g2 3.a4 
   <5>   +3.02    0.04    12506 1.Kxh3 e6g6 2.c4c1 g6g2 3.a4 
?   6    +2.48    0.10    46343 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
   <6>   +2.48    0.11    54249 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
    7    +2.73    0.13    61588 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
                                4.a4 g6g4 
   <7>   +2.73    0.18    85886 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
                                4.a4 g6g4 
    8    +2.53    0.22   113264 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
                                4.c2c3 Kd4 5.c3xf3 Kxc5 6.a4 
   <8>   +2.53    0.33   169679 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
                                4.c2c3 Kd4 5.c3xf3 Kxc5 6.a4 
    9    +2.35    0.39   208302 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
                                4.c2c3 Kd4 5.c3xf3 Kxc5 6.a4 Kb6 
   <9>   +2.35    1.85  1023067 1.Kxh3 e6g6 2.c4c2 Kf4 3.Kh2 Ke3 
                                4.c2c3 Kd4 5.c3xf3 Kxc5 6.a4 Kb6 
   10    +2.12    2.35  1310957 1.Kxh3 e6g6 2.c4c1 Kf4 3.Kh2 g6g2 
                                4.Kh1 g2xa2 5.b6 Kg3 6.c1g1 Kh3 
                                7.g1g6 a2h2 8.Kg1 h2c2 
!5/10    +2.77    6.79  3716649 1.Kg3 
!  10    +3.09   14.83  8192151 1.Kg3 e6e4 2.c4c1 h2 3.Kxh2 e4e2 
                                4.Kg3 Ke4 5.b6 e2b2 6.a4 b2g2 
                                7.Kh3 Ke3 
  <10>   +3.09   17.21  9474607 1.Kg3 e6e4 2.c4c1 h2 3.Kxh2 e4e2 
                                4.Kg3 Ke4 5.b6 e2b2 6.a4 b2g2 
                                7.Kh3 Ke3 
!  11    +3.51   24.66 13841991 1.Kg3 
!  11    +3.24   25.63 14420421 1.Kg3 e6e4 2.c4c1 h2 3.Kxh2 Kg4 
                                4.b6 e4e2 5.Kg1 Kg3 6.b7 e2g2 
                                7.Kf1 g2f2 8.Ke1 f2e2 9.Kd1 e2b2 
                                10.c6 f2 11.c1c3 Kg2 12.c3c2 b2xc2 
                                13.b7b8Q f2f1Q 14.Kxc2 
  <11>   +3.24   39.02 21900753 1.Kg3 e6e4 2.c4c1 h2 3.Kxh2 Kg4 
                                4.b6 e4e2 5.Kg1 Kg3 6.b7 e2g2 
                                7.Kf1 g2f2 8.Ke1 f2e2 9.Kd1 e2b2 
                                10.c6 f2 11.c1c3 Kg2 12.c3c2 b2xc2 
                                13.b7b8Q f2f1Q 14.Kxc2 
  <12>   +3.24    1:00 33858855 1.Kg3 e6e4 2.c4c3 e4e8 3.Kxf3 e8g8 
                                4.c6 Ke6 5.c3c1 Kd6 6.c7 h2 
                                7.b6 g8f8 

Computed move :   Kg3
NPS:              564126
solution found [23/24], time: 6.79, points: 18, nodes: 3716649!
[Diagram of position #25]

Test position #25

White to move


FEN :          4k3/1p3p2/p1pRr1pp/P1P1P3/5PK1/2P5/7P/8 w - -
Best Move :    h4 
Position ID:  "Larsen/Endings GMG 3.25"

 depth   value    time    nodes pv
    1    -0.61    0.00        2 1.d6d4 
  6/1    -0.52    0.00       21 1.Kf3 
   <1>   -0.52    0.00       43 1.Kf3 
    2    -0.72    0.00       99 1.Kf3 Kf8 
   <2>   -0.72    0.00      409 1.Kf3 Kf8 
    3    -0.70    0.00      642 1.Kf3 g5 2.d6d4 g5xf4 3.Kxf4 
  2/3    -0.68    0.00      971 1.h3 h5 2.Kg5 e6e7 
  7/3    -0.65    0.02     1491 1.h4 h5 2.Kg5 e6e7 
   <3>   -0.65    0.02     1672 1.h4 h5 2.Kg5 e6e7 
    4    -0.63    0.02     2632 1.h4 Kf8 2.d6d7 e6e7 
   <4>   -0.63    0.02     4569 1.h4 Kf8 2.d6d7 e6e7 
    5    -0.72    0.02     5944 1.h4 Kf8 2.Kf3 e6e8 3.Ke4 
  8/5    -0.69    0.04     9283 1.Kf3 Kf8 2.d6d4 g5 3.d4d7 
   <5>   -0.69    0.04     9872 1.Kf3 Kf8 2.d6d4 g5 3.d4d7 
    6    -0.73    0.05    15108 1.Kf3 Kf8 2.Ke4 e6e7 3.d6d8 Kg7 
                                4.Kd4 f6 
   <6>   -0.73    0.08    33587 1.Kf3 Kf8 2.Ke4 e6e7 3.d6d8 Kg7 
                                4.Kd4 f6 
    7    -0.72    0.11    51927 1.Kf3 e6e7 2.h4 e7d7 3.h5 g6xh5 
                                4.d6xh6 d7d3 5.Ke4 d3xc3 
  9/7    -0.41    0.21   103361 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke8 
                                4.d6xe6 f7xe6 5.Kxh6 Kd7 
   <7>   -0.41    0.21   104981 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke8 
                                4.d6xe6 f7xe6 5.Kxh6 Kd7 
    8    -0.43    0.27   133219 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke7 
                                4.c4 Ke8 5.d6xe6 f7xe6 6.Kxh6 Kd7 
                                7.Kg5 
   <8>   -0.43    0.30   152839 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke7 
                                4.c4 Ke8 5.d6xe6 f7xe6 6.Kxh6 Kd7 
                                7.Kg5 
    9    -0.17    0.44   230559 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke7 
                                4.c4 Kf8 5.d6xe6 f7xe6 6.Kxh6 Ke8 
                                7.Kg5 
   <9>   -0.17    0.49   269529 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke7 
                                4.c4 Kf8 5.d6xe6 f7xe6 6.Kxh6 Ke8 
                                7.Kg5 
   10    -0.38    0.72   409462 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke7 
                                4.Kg4 e6g6 5.Kf3 h5 6.f5 g6g8 
                                7.d6h6 
  <10>   -0.38    0.86   516517 1.h4 Kf8 2.h5 g6xh5 3.Kxh5 Ke7 
                                4.Kg4 e6g6 5.Kf3 h5 6.f5 g6g8 
                                7.d6h6 
   11    -0.23    2.61  1629057 1.h4 Ke7 2.d6d2 h5 3.Kg5 Kf8 
                                4.d2d6 e6e8 5.e6 f7xe6 6.Kxg6 Ke7 
                                7.Kxh5 e8g8 
  <11>   -0.23    2.88  1828767 1.h4 Ke7 2.d6d2 h5 3.Kg5 Kf8 
                                4.d2d6 e6e8 5.e6 f7xe6 6.Kxg6 Ke7 
                                7.Kxh5 e8g8 
   12    -0.24    4.61  2963319 1.h4 Ke7 2.c4 Ke8 3.h5 Ke7 
                                4.h5xg6 e6xg6 5.Kh5 g6g3 6.Kxh6 g3a3 
                                7.Kg7 a3xa5 8.d6f6 
  <12>   -0.24    5.30  3493210 1.h4 Ke7 2.c4 Ke8 3.h5 Ke7 
                                4.h5xg6 e6xg6 5.Kh5 g6g3 6.Kxh6 g3a3 
                                7.Kg7 a3xa5 8.d6f6 
   13    -0.22    8.94  5917717 1.h4 Ke7 2.c4 Ke8 3.h5 Ke7 
                                4.h5xg6 f7xg6 5.d6d2 Kf8 6.Kf3 Kf7 
                                7.Ke4 e6e7 8.d2d6 e7e6 
  <13>   -0.22    9.80  6567838 1.h4 Ke7 2.c4 Ke8 3.h5 Ke7 
                                4.h5xg6 f7xg6 5.d6d2 Kf8 6.Kf3 Kf7 
                                7.Ke4 e6e7 8.d2d6 e7e6 
   14    -0.19   16.47 11049007 1.h4 Ke7 2.c4 Ke8 3.h5 g6xh5 
                                4.Kxh5 Ke7 5.d6d2 f6 6.d2b2 f6xe5 
                                7.f5 e6f6 8.b2xb7 Ke8 9.b7b8 Kd7 
                                10.b8b7 Kd8 11.Kg4 e4 
  <14>   -0.19   17.96 12174289 1.h4 Ke7 2.c4 Ke8 3.h5 g6xh5 
                                4.Kxh5 Ke7 5.d6d2 f6 6.d2b2 f6xe5 
                                7.f5 e6f6 8.b2xb7 Ke8 9.b7b8 Kd7 
                                10.b8b7 Kd8 11.Kg4 e4 
   15    +0.02   41.58 27691895 1.h4 Ke7 2.c4 f5 3.Kg3 g5 
                                4.h4xg5 h6xg5 5.d6d2 e6g6 6.f4xg5 g6xg5 
                                7.Kf4 g5h5 8.d2d6 h5h4 9.Kxf5 h4xc4 
                                10.d6h6 c4xc5 11.h6h7 Kd8 12.h7xb7 c5xa5 
  <15>   +0.02   43.80 29386016 1.h4 Ke7 2.c4 f5 3.Kg3 g5 
                                4.h4xg5 h6xg5 5.d6d2 e6g6 6.f4xg5 g6xg5 
                                7.Kf4 g5h5 8.d2d6 h5h4 9.Kxf5 h4xc4 
                                10.d6h6 c4xc5 11.h6h7 Kd8 12.h7xb7 c5xa5 
  <16>   +0.02    1:00 40703675 1.h4 Ke7 2.c4 f5 3.Kg3 h5 
                                4.Kh3 Kf7 5.d6d8 e6e7 6.Kh2 Ke6 
                                7.d8d6 Kf7 8.d6d8 

Computed move :   h4
NPS:              678168
solution found [24/25], time: 0.21, points: 25, nodes: 104981!
[Diagram of position #26]

Test position #26

White to move


FEN :          8/8/R7/pp5p/2bK3k/2P5/6P1/8 w - -
Best Move :    Rg6 
Position ID:  "Larsen/Endings GMG 3.26"

 depth   value    time    nodes pv
    1    +2.21    0.00        2 1.a6xa5 
   <1>   +2.21    0.00       35 1.a6xa5 
    2    +1.98    0.00       52 1.a6xa5 Kg3 
   <2>   +1.98    0.01      165 1.a6xa5 Kg3 
?   3    +0.57    0.01      853 1.a6xa5 Kg3 2.a5a8 Kxg2 
? 7/3    +0.68    0.01     1162 1.a6g6 a4 2.g6h6 
   <3>   +0.68    0.01     1367 1.a6g6 a4 2.g6h6 
    4    +0.54    0.01     1752 1.a6g6 a4 2.g6g7 a3 
  2/4    +0.57    0.01     1901 1.a6xa5 Kg3 2.a5a8 Kxg2 
   <4>   +0.57    0.01     3074 1.a6xa5 Kg3 2.a5a8 Kxg2 
!   5    +0.99    0.01     3248 1.a6xa5 
!   5    +1.07    0.03     3663 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
   <5>   +1.07    0.03     4972 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
    6    +1.20    0.03     5991 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
                                4.Kc5 
   <6>   +1.20    0.03     7636 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
                                4.Kc5 
    7    +1.16    0.05     9646 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
                                4.Kc5 Kg3 
   <7>   +1.16    0.05    12860 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
                                4.Kc5 Kg3 
    8    +1.16    0.06    16225 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
                                4.Kc5 Kg3 5.h8h7 
   <8>   +1.16    0.06    18445 1.a6xa5 Kg3 2.a5a8 Kxg2 3.a8h8 c4e2 
                                4.Kc5 Kg3 5.h8h7 
    9    +1.04    0.09    36436 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2f3 5.h7g7 f3g4 6.Ke4 
   <9>   +1.04    0.12    57901 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2f3 5.h7g7 f3g4 6.Ke4 
   10    +1.11    0.15    78393 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7g7 Kf1 6.g7h7 
  <10>   +1.11    0.26   149423 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7g7 Kf1 6.g7h7 
   11    +1.15    0.34   207661 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7g7 Kf1 6.g7b7 g4e2 
                                7.b7h7 
  <11>   +1.15    0.59   380805 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7g7 Kf1 6.g7b7 g4e2 
                                7.b7h7 
   12    +1.53    0.86   587276 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7b7 h4 6.b7xb5 h3 
                                7.Kf4 g4e2 8.b5f5 
  <12>   +1.53    1.51  1060124 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7b7 h4 6.b7xb5 h3 
                                7.Kf4 g4e2 8.b5f5 
   13    +1.50    1.94  1380549 1.a6xa5 Kg3 2.a5a7 Kxg2 3.a7h7 c4e2 
                                4.Ke3 e2g4 5.h7b7 h4 6.b7xb5 h3 
                                7.Kf4 g4e2 8.b5g5 Kf2 9.g5f5 
!4/13    +1.95    4.70  3321735 1.Ke3 
!  13    +2.16    6.56  4652595 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6a8 c8e6 6.a8h8 e6g4 
                                7.h8b8 Kxg2 
  <13>   +2.16    7.12  5072611 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6a8 c8e6 6.a8h8 e6g4 
                                7.h8b8 Kxg2 
   14    +2.21    8.95  6400377 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6b6 Kxg2 6.b6xb5 h4 
                                7.b5g5 Kf1 8.g5g8 c8e6 9.g8f8 Kg2 
                                10.f8h8 
  <14>   +2.21   12.26  8861542 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6b6 Kxg2 6.b6xb5 h4 
                                7.b5g5 Kf1 8.g5g8 c8e6 9.g8f8 Kg2 
                                10.f8h8 
   15    +2.27   16.94 12245920 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6b6 Kxg2 6.b6xb5 h4 
                                7.b5g5 Kf1 8.g5g8 c8e6 9.g8g6 e6d7 
                                10.g6f6 Kg2 11.f6h6 
  <15>   +2.27   28.36 20535137 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6b6 Kxg2 6.b6xb5 h4 
                                7.b5g5 Kf1 8.g5g8 c8e6 9.g8g6 e6d7 
                                10.g6f6 Kg2 11.f6h6 
   16    +2.35   58.23 42011910 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6b6 Kxg2 6.b6xb5 h4 
                                7.b5g5 Kf1 8.g5g8 c8e6 9.g8g6 e6d7 
                                10.g6d6 d7g4 11.d6h6 
  <16>   +2.35    1:00 43283131 1.Ke3 Kg4 2.a6xa5 Kg3 3.a5a7 c4e6 
                                4.a7a6 e6c8 5.a6b6 Kxg2 6.b6xb5 h4 
                                7.b5g5 Kf1 8.g5g8 c8e6 9.g8g6 e6d7 
                                10.g6d6 d7g4 11.d6h6 

Computed move :   Ke3
NPS:              721265
no solution found [:-( [24/26]!
[Diagram of position #27]

Test position #27

White to move


FEN :          3K2k1/2R3p1/1p2p2p/3bPp2/5P2/1p4P1/7P/8 w - -
Best Move :    Ke7 
Position ID:  "Larsen/Endings GMG 3.27"

 depth   value    time    nodes pv
    1    -1.37    0.00        2 1.c7c8 
   <1>   -1.37    0.00       30 1.c7c8 
  2/2    -1.72    0.00       90 1.Ke7 b2 
   <2>   -1.72    0.00      360 1.Ke7 b2 
  2/3    -1.81    0.00      797 1.c7c8 b2 2.Kc7 Kf7 
 11/3    -1.60    0.00     1253 1.c7c1 Kf7 2.Kc7 
   <3>   -1.60    0.00     1377 1.c7c1 Kf7 2.Kc7 
?   4    -2.33    0.01     5440 1.c7c1 d5e4 2.Ke7 b2 3.c1c8 Kh7 
   <4>   -2.33    0.01     7893 1.c7c1 d5e4 2.Ke7 b2 3.c1c8 Kh7 
?   5    -3.08    0.05    17945 1.c7c1 d5e4 2.Ke7 b2 3.c1e1 b2b1B 
                                4.Kxe6 
   <5>   -3.08    0.05    23937 1.c7c1 d5e4 2.Ke7 b2 3.c1e1 b2b1B 
                                4.Kxe6 
    6    -2.69    0.06    28006 1.c7c1 d5e4 2.Ke7 b2 3.c1d1 b2b1B 
                                4.d1xb1 e4xb1 
   <6>   -2.69    0.08    37437 1.c7c1 d5e4 2.Ke7 b2 3.c1d1 b2b1B 
                                4.d1xb1 e4xb1 
    7    -2.90    0.09    45958 1.c7c1 d5e4 2.Ke7 b2 3.c1d1 b2b1B 
                                4.d1xb1 e4xb1 5.Kxe6 b1e4 
   <7>   -2.90    0.12    58583 1.c7c1 d5e4 2.Ke7 b2 3.c1d1 b2b1B 
                                4.d1xb1 e4xb1 5.Kxe6 b1e4 
    8    -2.50    0.15    75866 1.c7c1 d5e4 2.Ke7 b2 3.c1e1 b2b1Q 
                                4.e1xb1 e4xb1 5.Kxe6 b1e4 6.Kd6 
   <8>   -2.50    0.17    88166 1.c7c1 d5e4 2.Ke7 b2 3.c1e1 b2b1Q 
                                4.e1xb1 e4xb1 5.Kxe6 b1e4 6.Kd6 
?   9    -4.52    0.39   212397 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 b2b1Q 5.e1xb1 e4xb1 6.Kxb5 Kf7 
   <9>   -4.52    0.42   233204 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 b2b1Q 5.e1xb1 e4xb1 6.Kxb5 Kf7 
   10    -4.52    0.53   298601 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.Kb4 b2b1B 
                                7.e1xb1 d3xb1 8.Kxb5 
  <10>   -4.52    0.58   326223 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.Kb4 b2b1B 
                                7.e1xb1 d3xb1 8.Kxb5 
   11    -4.52    0.72   411290 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.h4 Kf7 6.Ka5 b2b1Q 
                                7.e1xb1 d3xb1 8.Kxb5 
  <11>   -4.52    0.78   451541 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.h4 Kf7 6.Ka5 b2b1Q 
                                7.e1xb1 d3xb1 8.Kxb5 
   12    -4.66    1.14   684847 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.e1d1 b2b1B 
                                7.Kd4 d3e4 8.d1xb1 e4xb1 
  <12>   -4.66    1.26   769604 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.e1d1 b2b1B 
                                7.Kd4 d3e4 8.d1xb1 e4xb1 
   13    -4.61    1.94  1212355 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.h3 b2b1Q 
                                7.e1xb1 d3xb1 8.g4 Kg6 9.g4xf5 Kxf5 
  <13>   -4.61    2.28  1413097 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.h3 b2b1Q 
                                7.e1xb1 d3xb1 8.g4 Kg6 9.g4xf5 Kxf5 
   14    -4.67    4.53  2855264 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.h4 h5 
                                7.Kb4 b2b1Q 8.e1xb1 d3xb1 9.Kxb5 b1d3 
                                10.Kc6 Kg6 
  <14>   -4.67    4.89  3083280 1.c7c1 d5e4 2.c1e1 b2 3.Kc7 b5 
                                4.Kb6 e4d3 5.Kc5 Kf7 6.h4 h5 
                                7.Kb4 b2b1Q 8.e1xb1 d3xb1 9.Kxb5 b1d3 
                                10.Kc6 Kg6 
!  15    -4.25   30.06 18168336 1.c7c1 
!  15    -3.50   47.01 28159975 1.c7c1 
!  15    -3.81   47.37 28376057 1.c7c1 d5e4 2.Ke7 b2 3.c1e1 b5 
                                4.Kxe6 b4 5.Kd6 b2b1Q 6.e1xb1 e4xb1 
                                7.Kc5 b3 8.Kd4 Kf7 9.Kc3 b1c2 
                                10.h4 Ke6 11.Kb2 
  <15>   -3.81   48.28 28900315 1.c7c1 d5e4 2.Ke7 b2 3.c1e1 b5 
                                4.Kxe6 b4 5.Kd6 b2b1Q 6.e1xb1 e4xb1 
                                7.Kc5 b3 8.Kd4 Kf7 9.Kc3 b1c2 
                                10.h4 Ke6 11.Kb2 
  <16>   -3.81    1:00 36003492 1.c7c1 d5e4 2.Ke7 b2 

Computed move :   c7c1
NPS:              600058
no solution found [:-( [24/27]!
[Diagram of position #28]

Test position #28

White to move


FEN :          R7/1P2p1k1/8/5p2/6p1/7p/7b/5K2 w - -
Best Move :    Ra2 
Position ID:  "Larsen/Endings GMG 3.28"

 depth   value    time    nodes pv
    1    -1.66    0.00        2 1.a8e8 
 14/1    -1.34    0.00       20 1.b7b8Q h2xb8 2.a8xb8 
   <1>   -1.34    0.00       40 1.b7b8Q h2xb8 2.a8xb8 
    2    -1.34    0.00       60 1.b7b8Q h2xb8 
   <2>   -1.34    0.02      238 1.b7b8Q h2xb8 
    3    -1.34    0.02      320 1.b7b8Q h2xb8 2.a8xb8 
   <3>   -1.34    0.02      651 1.b7b8Q h2xb8 2.a8xb8 
  2/4    -1.47    0.02     2058 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 
  3/4    -1.42    0.02     2892 1.Ke2 e6 2.b7b8Q h2xb8 3.a8xb8 
   <4>   -1.42    0.03     3672 1.Ke2 e6 2.b7b8Q h2xb8 3.a8xb8 
  2/5    -1.47    0.03     8279 1.a8e8 Kf7 2.e8h8 e6 3.b7b8Q h2xb8 
                                4.h8xb8 
   <5>   -1.47    0.05     9962 1.a8e8 Kf7 2.e8h8 e6 3.b7b8Q h2xb8 
                                4.h8xb8 
    6    -1.47    0.05    14433 1.a8e8 Kf7 2.e8h8 e6 3.b7b8Q h2xb8 
                                4.h8xb8 
   <6>   -1.47    0.07    18528 1.a8e8 Kf7 2.e8h8 e6 3.b7b8Q h2xb8 
                                4.h8xb8 
?   7    -2.41    0.16    70139 1.a8e8 Kf7 2.e8h8 h2e5 3.Kg1 f4 
                                4.Kh2 
   <7>   -2.41    0.22   103211 1.a8e8 Kf7 2.e8h8 h2e5 3.Kg1 f4 
                                4.Kh2 
    8    -2.34    0.33   169071 1.a8e8 Kf7 2.b7b8Q h2xb8 3.e8xb8 f4 
                                4.b8h8 e5 5.h8h6 
   <8>   -2.34    0.38   196948 1.a8e8 Kf7 2.b7b8Q h2xb8 3.e8xb8 f4 
                                4.b8h8 e5 5.h8h6 
    9    -2.08    0.52   283066 1.a8e8 g3 2.e8xe7 Kf6 3.e7e1 g2 
                                4.Kf2 Kg5 5.e1b1 h2b8 6.Kg1 f4 
                                7.b1b5 Kg4 8.b5b6 
   <9>   -2.08    0.61   344942 1.a8e8 g3 2.e8xe7 Kf6 3.e7e1 g2 
                                4.Kf2 Kg5 5.e1b1 h2b8 6.Kg1 f4 
                                7.b1b5 Kg4 8.b5b6 
   10    -1.87    1.30   773415 1.a8e8 g3 2.e8xe7 Kf6 3.e7e1 g2 
                                4.Kf2 Kg7 5.e1b1 h2b8 6.Kg1 Kh6 
                                7.b1a1 f4 8.a1b1 
  <10>   -1.87    1.50   888940 1.a8e8 g3 2.e8xe7 Kf6 3.e7e1 g2 
                                4.Kf2 Kg7 5.e1b1 h2b8 6.Kg1 Kh6 
                                7.b1a1 f4 8.a1b1 
   11    -1.80    3.39  2091806 1.a8e8 Kf6 2.b7b8Q h2xb8 3.e8xb8 f4 
                                4.Kg1 g3 5.b8h8 h2 6.Kh1 e6 
                                7.h8h3 e5 8.h3h8 
  <11>   -1.80    3.97  2448665 1.a8e8 Kf6 2.b7b8Q h2xb8 3.e8xb8 f4 
                                4.Kg1 g3 5.b8h8 h2 6.Kh1 e6 
                                7.h8h3 e5 8.h3h8 
   12    -1.79    7.71  4890156 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 g3 5.b8h8 h2 6.Kg2 f4 
                                7.h8f8 Ke5 8.Kh1 e6 9.f8h8 
  <12>   -1.79    9.49  5962170 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 g3 5.b8h8 h2 6.Kg2 f4 
                                7.h8f8 Ke5 8.Kh1 e6 9.f8h8 
   13    -1.82   16.77 10619187 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 g3 5.b8h8 h2 6.Kg2 f4 
                                7.h8f8 Ke5 8.Kh1 e6 9.f8f7 Ke4 
  <13>   -1.82   21.19 13348188 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 g3 5.b8h8 h2 6.Kg2 f4 
                                7.h8f8 Ke5 8.Kh1 e6 9.f8f7 Ke4 
   14    -1.87   47.19 29426100 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 g3 5.b8h8 h2 6.Kg2 f4 
                                7.h8f8 Ke5 8.Kh1 Ke4 9.f8g8 e5 
                                10.g8h8 
  <14>   -1.87    1:00 36960594 1.a8e8 Kf6 2.e8f8 Ke6 3.b7b8Q h2xb8 
                                4.f8xb8 g3 5.b8h8 h2 6.Kg2 f4 
                                7.h8f8 Ke5 8.Kh1 Ke4 9.f8g8 e5 
                                10.g8h8 

Computed move :   a8e8
NPS:              616009
no solution found [:-( [24/28]!
[Diagram of position #29]

Test position #29

White to move


FEN :          5k2/3R4/6pp/4bp2/8/5K2/8/8 w - -
Best Move :    Rd5 
Position ID:  "Larsen/Endings GMG 3.29"

 depth   value    time    nodes pv
    1    -1.71    0.00        2 1.d7h7 
   <1>   -1.71    0.01       48 1.d7h7 
? 2/2    -2.51    0.01      870 1.d7d8 Ke7 2.d8g8 g5 
? 4/2    -2.25    0.01      928 1.Ke3 g5 
   <2>   -2.25    0.01      981 1.Ke3 g5 
    3    -2.17    0.01     1250 1.Ke3 f4 2.Ke4 Ke8 
  5/3    -2.10    0.01     1645 1.d7a7 Kg8 2.a7e7 
   <3>   -2.10    0.01     1770 1.d7a7 Kg8 2.a7e7 
    4    -2.37    0.01     2303 1.d7a7 g5 2.a7d7 h5 
  4/4    -2.30    0.03     3453 1.d7d5 e5c3 2.d5d7 g5 
   <4>   -2.30    0.03     4102 1.d7d5 e5c3 2.d5d7 g5 
    5    -2.11    0.03     5546 1.d7d5 e5g7 2.d5d6 Kf7 3.Kf4 
   <5>   -2.11    0.03     6484 1.d7d5 e5g7 2.d5d6 Kf7 3.Kf4 
    6    -2.33    0.04    10533 1.d7d5 e5f6 2.d5d7 g5 3.Ke3 h5 
  4/6    -2.27    0.06    20052 1.Ke2 f4 2.Kf2 g5 3.Kf3 h5 
   <6>   -2.27    0.08    37614 1.Ke2 f4 2.Kf2 g5 3.Kf3 h5 
    7    -2.25    0.09    44656 1.Ke2 f4 2.Kf3 g5 3.Ke4 e5g7 
                                4.Kf3 g7c3 
   <7>   -2.25    0.11    51418 1.Ke2 f4 2.Kf3 g5 3.Ke4 e5g7 
                                4.Kf3 g7c3 
    8    -2.20    0.12    59437 1.Ke2 f4 2.Kf3 g5 3.Ke4 e5g7 
                                4.Kf3 h5 5.d7c7 
   <8>   -2.20    0.17   100136 1.Ke2 f4 2.Kf3 g5 3.Ke4 e5g7 
                                4.Kf3 h5 5.d7c7 
    9    -2.31    0.25   150952 1.Ke2 h5 2.Kf3 h4 3.Kg2 Ke8 
                                4.d7h7 g5 5.Kh3 f4 
  2/9    -1.99    0.39   252867 1.d7d5 e5c7 2.d5d7 c7a5 3.Ke3 a5c3 
                                4.Kf4 Kg8 5.d7e7 
   <9>   -1.99    0.42   274846 1.d7d5 e5c7 2.d5d7 c7a5 3.Ke3 a5c3 
                                4.Kf4 Kg8 5.d7e7 
!  10    -1.57    0.50   344196 1.d7d5 
!  10    -1.01    0.61   439710 1.d7d5 e5c7 2.d5d7 c7a5 3.d7d5 a5b4 
                                4.Kf4 Kf7 5.d5xf5 Ke6 6.f5h5 b4d2 
                                7.Ke4 d2g5 
  <10>   -1.01    0.72   519445 1.d7d5 e5c7 2.d5d7 c7a5 3.d7d5 a5b4 
                                4.Kf4 Kf7 5.d5xf5 Ke6 6.f5h5 b4d2 
                                7.Ke4 d2g5 
   11    -1.02    0.89   674272 1.d7d5 e5c7 2.d5d7 c7a5 3.d7d5 a5c3 
                                4.Kf4 Ke7 5.d5xf5 Ke6 6.f5h5 g5 
                                7.Ke4 c3g7 
  <11>   -1.02    1.29   985112 1.d7d5 e5c7 2.d5d7 c7a5 3.d7d5 a5c3 
                                4.Kf4 Ke7 5.d5xf5 Ke6 6.f5h5 g5 
                                7.Ke4 c3g7 
   12    -0.80    2.89  2377545 1.d7d5 e5f6 2.d5xf5 Kg7 3.f5b5 g5 
                                4.Ke4 Kg6 5.b5b8 Kf7 6.b8b7 f6e7 
                                7.b7b6 h5 
  <12>   -0.80    3.81  3080735 1.d7d5 e5f6 2.d5xf5 Kg7 3.f5b5 g5 
                                4.Ke4 Kg6 5.b5b8 Kf7 6.b8b7 f6e7 
                                7.b7b6 h5 
   13    -0.85    4.59  3843116 1.d7d5 e5f6 2.d5xf5 Kg7 3.f5b5 g5 
                                4.Ke4 Kg6 5.Kf3 Kh5 6.Ke4 f6c3 
                                7.b5b3 c3g7 8.b3f3 
  <13>   -0.85    7.17  5861419 1.d7d5 e5f6 2.d5xf5 Kg7 3.f5b5 g5 
                                4.Ke4 Kg6 5.Kf3 Kh5 6.Ke4 f6c3 
                                7.b5b3 c3g7 8.b3f3 
   14    -0.85    9.37  8023830 1.d7d5 e5f6 2.d5xf5 Kf7 3.f5b5 g5 
                                4.Ke4 Kg6 5.Kf3 
  <14>   -0.85   14.53 12153116 1.d7d5 e5f6 2.d5xf5 Kf7 3.f5b5 g5 
                                4.Ke4 Kg6 5.Kf3 
   15    -0.74   20.64 18100304 1.d7d5 e5f6 2.d5xf5 Kf7 3.f5h5 Kg7 
                                4.Ke4 g5 5.Kf5 f6e7 6.h5h4 e7c5 
                                7.h4h3 c5d6 8.h3d3 d6e7 9.d3f3 
  <15>   -0.74   31.00 26479800 1.d7d5 e5f6 2.d5xf5 Kf7 3.f5h5 Kg7 
                                4.Ke4 g5 5.Kf5 f6e7 6.h5h4 e7c5 
                                7.h4h3 c5d6 8.h3d3 d6e7 9.d3f3 
   16    -0.52   43.58 38648902 1.d7d5 e5f6 2.d5xf5 Kf7 3.f5h5 Kg7 
                                4.Ke4 g5 5.Kf5 f6e7 6.h5h1 Kh7 
                                7.h1b1 e7f8 8.b1b7 f8g7 9.b7d7 Kg8 
                                10.Kg6 g7f8 
  <16>   -0.52    1:00 52194885 1.d7d5 e5f6 2.d5xf5 Kf7 3.f5h5 Kg7 
                                4.Ke4 g5 5.Kf5 f6e7 6.h5h1 Kh7 
                                7.h1b1 e7f8 8.b1b7 f8g7 9.b7d7 Kg8 
                                10.Kg6 g7f8 

Computed move :   d7d5
NPS:              869914
solution found [25/29], time: 0.39, points: 25, nodes: 274846!
[Diagram of position #30]

Test position #30

White to move


FEN :          7k/8/pP1N4/3P1p2/5PpP/3r4/7P/6K1 w - -
Best Move :    Nf7+ 
Position ID:  "Larsen/Endings GMG 3.30"

 depth   value    time    nodes pv
    1    +1.68    0.00        3 1.d6xf5 d3xd5 
   <1>   +1.68    0.00       42 1.d6xf5 d3xd5 
    2    +1.68    0.02       64 1.d6xf5 d3xd5 
   <2>   +1.68    0.02      258 1.d6xf5 d3xd5 
!   3    +2.10    0.02      483 1.d6xf5 
!   3    +2.23    0.02      639 1.d6xf5 d3xd5 2.f5e3 
   <3>   +2.23    0.02      800 1.d6xf5 d3xd5 2.f5e3 
    4    +1.87    0.02     1318 1.d6xf5 d3xd5 2.f5e3 d5b5 
   <4>   +1.87    0.02     2595 1.d6xf5 d3xd5 2.f5e3 d5b5 
    5    +2.01    0.03     4235 1.d6xf5 d3xd5 2.f5e3 d5b5 3.e3c4 
   <5>   +2.01    0.03     7114 1.d6xf5 d3xd5 2.f5e3 d5b5 3.e3c4 
    6    +2.10    0.05    14173 1.d6xf5 d3xd5 2.b7 d5d8 3.f5d6 d8b8 
                                4.h5 
   <6>   +2.10    0.06    21900 1.d6xf5 d3xd5 2.b7 d5d8 3.f5d6 d8b8 
                                4.h5 
    7    +1.78    0.10    37750 1.d6xf5 d3b3 2.Kg2 b3xb6 3.f5e3 b6d6 
                                4.h5 
   <7>   +1.78    0.14    59242 1.d6xf5 d3b3 2.Kg2 b3xb6 3.f5e3 b6d6 
                                4.h5 
    8    +1.87    0.17    78692 1.d6xf5 d3b3 2.Kg2 b3xb6 3.Kg3 b6b2 
                                4.d6 b2d2 5.h5 
   <8>   +1.87    0.20    97115 1.d6xf5 d3b3 2.Kg2 b3xb6 3.Kg3 b6b2 
                                4.d6 b2d2 5.h5 
    9    +1.67    0.28   145097 1.d6xf5 d3b3 2.Kg2 b3xb6 3.Kg3 b6b2 
                                4.d6 b2d2 5.Kxg4 d2xh2 6.d7 h2d2 
   <9>   +1.67    0.41   212185 1.d6xf5 d3b3 2.Kg2 b3xb6 3.Kg3 b6b2 
                                4.d6 b2d2 5.Kxg4 d2xh2 6.d7 h2d2 
 4/10    +1.41    1.36   792273 1.b7 d3b3 2.Kf2 a5 3.d6xf5 b3xb7 
                                4.Kg3 a4 5.Kxg4 a3 6.f5e3 a2 
                                7.e3c2 Kg7 
  <10>   +1.41    1.47   856527 1.b7 d3b3 2.Kf2 a5 3.d6xf5 b3xb7 
                                4.Kg3 a4 5.Kxg4 a3 6.f5e3 a2 
                                7.e3c2 Kg7 
?  11    +1.04    4.58  2754917 1.b7 d3b3 2.d6xf5 b3xb7 3.d6 Kh7 
                                4.f5e3 b7d7 5.e3c4 d7f7 6.Kf2 f7xf4 
                                7.Ke3 f4f3 8.Ke4 Kh6 9.Kd5 
  <11>   +1.04    4.60  2754931 1.b7 d3b3 2.d6xf5 b3xb7 3.d6 Kh7 
                                4.f5e3 b7d7 5.e3c4 d7f7 6.Kf2 f7xf4 
                                7.Ke3 f4f3 8.Ke4 Kh6 9.Kd5 
   12    +0.84    6.28  3815932 1.b7 d3b3 2.d6xf5 b3xb7 3.d6 b7d7 
                                4.h5 Kh7 5.Kg2 d7f7 6.f5e7 f7f6 
                                7.e7c8 f6xf4 8.Kg3 
  <12>   +0.84    8.86  5419815 1.b7 d3b3 2.d6xf5 b3xb7 3.d6 b7d7 
                                4.h5 Kh7 5.Kg2 d7f7 6.f5e7 f7f6 
                                7.e7c8 f6xf4 8.Kg3 
   13    +0.83   12.63  7830812 1.b7 d3b3 2.d6xf5 b3xb7 3.f5e3 b7b4 
                                4.f5 Kg7 5.Kf2 b4d4 6.Kg2 Kf6 
                                7.Kg3 d4e4 8.Kf2 a5 9.h5 a4 
!3/13    +1.26   32.77 20067834 1.d6f7 
!  13    +2.01   45.72 27846515 1.d6f7 
  <13>   +2.01    1:00 36252665 

Computed move :   d6f7
NPS:              604211
solution found [26/30], time: 32.77, points: 12, nodes: 20067834!
© Steffen A. Jakob