[ Test Suite ecm-gcp | Hossa ]

Positions 1 - 10


[Diagram of position #1]

Test position #1

Black to move


FEN :          r1b1r1k1/p1p3pp/2p2n2/2bp4/5P2/3BBQPq/PPPK3P/R4N1R b - -
Best Move :    Bg4 
Position ID:  "ECM.946"

 depth   value    time    nodes pv
    1    +1.02    0.00      259 1... c5b4 2.c3 f6e4 3.d3xe4 d5xe4 
 29/1    +1.08    0.00      472 1... f6e4 2.d3xe4 d5xe4 
   <1>   +1.08    0.00      581 1... f6e4 2.d3xe4 d5xe4 
    2    +1.07    0.00     1272 1... f6e4 2.d3xe4 d5xe4 3.f3e2 
 37/2    +1.08    0.01     2262 1... c8g4 2.f3f2 
   <2>   +1.08    0.01     2305 1... c8g4 2.f3f2 
    3    +0.91    0.01     2684 1... c8g4 2.f3f2 c5b4 3.Kc1 
  2/3    +1.01    0.01     6165 1... f6e4 2.d3xe4 c5b4 3.c3 d5xe4 
                                4.f3e2 
  5/3    +1.16    0.03     8665 1... d4 2.e3g1 c8b7 
   <3>   +1.16    0.03     9658 1... d4 2.e3g1 c8b7 
    4    +0.94    0.05    12951 1... d4 2.e3f2 f6d5 3.a1e1 
   <4>   +0.94    0.08    32392 1... d4 2.e3f2 f6d5 3.a1e1 
    5    +1.09    0.08    38471 1... d4 2.e3f2 f6d5 3.d3e4 c8b7 
   <5>   +1.09    0.14    74060 1... d4 2.e3f2 f6d5 3.d3e4 c8b7 
    6    +1.12    0.19    98598 1... d4 2.e3f2 f6d5 3.d3e4 c8b7 
                                4.a1d1 a8b8 
   <6>   +1.12    0.31   197412 1... d4 2.e3f2 f6d5 3.d3e4 c8b7 
                                4.a1d1 a8b8 
    7    +1.12    0.47   287185 1... d4 2.e3f2 f6d5 3.d3e4 h3d7 
                                4.f3d3 c5b4 5.Kc1 
! 7/7    +1.54    0.65   448549 1... c8g4 
!   7    +2.29    0.67   458223 1... c8g4 
!   7    +3.18    0.70   482421 1... c8g4 2.f3f2 d4 3.a1e1 d4xe3 
                                4.f1xe3 f6d5 5.d3c4 
   <7>   +3.18    0.81   577576 1... c8g4 2.f3f2 d4 3.a1e1 d4xe3 
                                4.f1xe3 f6d5 5.d3c4 
    8    +3.35    0.90   646284 1... c8g4 2.f3f2 d4 3.a1e1 d4xe3 
                                4.f1xe3 f6d5 5.d3c4 h3h5 6.c4xd5 c6xd5 
   <8>   +3.35    1.09   866984 1... c8g4 2.f3f2 d4 3.a1e1 d4xe3 
                                4.f1xe3 f6d5 5.d3c4 h3h5 6.c4xd5 c6xd5 
    9    +3.37    1.40  1103275 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.f2g1 d4xe3 5.f1xe3 f6d5 6.d3f1 h3h5 
   <9>   +3.37    1.94  1715415 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.f2g1 d4xe3 5.f1xe3 f6d5 6.d3f1 h3h5 
   10    +3.52    2.55  2215813 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.f2g1 d4xe3 5.f1xe3 e6d5 6.g1f1 h3xf1 
                                7.h1xf1 d5xa2 
  <10>   +3.52    4.01  3875436 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.f2g1 d4xe3 5.f1xe3 e6d5 6.g1f1 h3xf1 
                                7.h1xf1 d5xa2 
!  11    +3.94    4.55  4256652 1... c8g4 
!  11    +3.97    5.78  5355521 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.f2g1 d4xe3 5.f1xe3 f6g4 6.d3f1 h3h5 
                                7.f1e2 c5xe3 8.g1xe3 h5d5 9.e3d3 d5xa2 
  <11>   +3.97    9.37  9444818 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.f2g1 d4xe3 5.f1xe3 f6g4 6.d3f1 h3h5 
                                7.f1e2 c5xe3 8.g1xe3 h5d5 9.e3d3 d5xa2 
  <12>   +3.97   10.00  9895309 1... c8g4 2.f3f2 d4 3.a1e1 g4e6 
                                4.e3xd4 c5xd4 5.f2xd4 h3g2 6.Kc1 g2xh1 
                                7.e1e5 h1g2 8.Kb1 a5 

Computed move :   c8g4
NPS:              989530
solution found [1/1], time: 0.65, points: 20, nodes: 448549!
[Diagram of position #2]

Test position #2

Black to move


FEN :          1r5r/3b1pk1/3p1np1/p1qPp3/p1N1PbP1/2P2PN1/1PB1Q1K1/R3R3 b - -
Best Move :    Nxg4 
Position ID:  "ECM.949"

 depth   value    time    nodes pv
    1    +0.69    0.00       11 1... h8h7 2.c2xa4 
  8/1    +0.92    0.02       78 1... d7b5 
   <1>   +0.92    0.02      339 1... d7b5 
    2    +1.13    0.02      433 1... d7b5 2.c2d3 b5xc4 3.d3xc4 f4xg3 
                                4.Kxg3 
   <2>   +1.13    0.02     1992 1... d7b5 2.c2d3 b5xc4 3.d3xc4 f4xg3 
                                4.Kxg3 
    3    +1.13    0.02     2345 1... d7b5 2.c2d3 b5xc4 
   <3>   +1.13    0.03     7599 1... d7b5 2.c2d3 b5xc4 
    4    +1.13    0.03    10050 1... d7b5 2.c2d3 b5xc4 3.d3xc4 
   <4>   +1.13    0.07    22262 1... d7b5 2.c2d3 b5xc4 3.d3xc4 
    5    +1.13    0.07    29258 1... d7b5 2.c2d3 b5xc4 3.d3xc4 f4xg3 
   <5>   +1.13    0.13    76801 1... d7b5 2.c2d3 b5xc4 3.d3xc4 f4xg3 
    6    +1.00    0.21   109147 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 b8xb5 5.a1xa4 f4xg3 6.Kxg3 
   <6>   +1.00    0.47   316771 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 b8xb5 5.a1xa4 f4xg3 6.Kxg3 
    7    +1.39    0.58   377328 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 c5xb5 5.e2xb5 b8xb5 
   <7>   +1.39    0.91   678430 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 c5xb5 5.e2xb5 b8xb5 
    8    +1.49    1.10   814763 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 c5xb5 5.e2xb5 b8xb5 6.e1e2 
   <8>   +1.49    1.46  1203543 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 c5xb5 5.e2xb5 b8xb5 6.e1e2 
    9    +1.70    1.96  1569880 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 c5xb5 5.e2xb5 b8xb5 6.e1e2 c8h8 
                                7.a1xa4 
   <9>   +1.70    2.85  2568680 1... d7b5 2.c2d3 h8c8 3.c4xe5 d6xe5 
                                4.d3xb5 c5xb5 5.e2xb5 b8xb5 6.e1e2 c8h8 
                                7.a1xa4 
   10    +1.59    4.39  3672900 1... d7b5 2.c2d3 h8c8 3.b4 a5xb4 
                                4.c3xb4 c5xb4 5.c4xd6 b5xd3 6.g3f5 g6xf5 
                                7.d6xf5 Kg8 8.e2xd3 
  <10>   +1.59    6.61  6151508 1... d7b5 2.c2d3 h8c8 3.b4 a5xb4 
                                4.c3xb4 c5xb4 5.c4xd6 b5xd3 6.g3f5 g6xf5 
                                7.d6xf5 Kg8 8.e2xd3 
  <11>   +1.59   10.00  9494169 1... d7b5 

Computed move :   d7b5
NPS:              949416
no solution found [:-( [1/2]!
[Diagram of position #3]

Test position #3

White to move


FEN :          2k4r/1pp2ppp/p1p1bn2/4N3/1q1rP3/2N1Q3/PPP2PPP/R4RK1 w - -
Best Move :    Nd5 
Position ID:  "ECM.952"

 depth   value    time    nodes pv
    1    -0.38    0.00        9 1.c3e2 d4xe4 
  3/1    +0.83    0.00       18 1.f1e1 
   <1>   +0.83    0.00       95 1.f1e1 
    2    +0.64    0.00      169 1.f1e1 h8d8 
 24/2    +0.74    0.00      572 1.a3 b4c5 
   <2>   +0.74    0.00      693 1.a3 b4c5 
    3    +0.90    0.01     1045 1.a3 b4c5 2.a1d1 
   <3>   +0.90    0.01     2069 1.a3 b4c5 2.a1d1 
    4    +1.13    0.01     5728 1.a3 b4b6 2.b4 h8d8 
   <4>   +1.13    0.03     8356 1.a3 b4b6 2.b4 h8d8 
    5    +1.07    0.03    12681 1.a3 b4b6 2.b4 h8d8 3.f1e1 
   <5>   +1.07    0.04    20578 1.a3 b4b6 2.b4 h8d8 3.f1e1 
    6    +0.85    0.08    36458 1.a3 b4b6 2.b4 d4d8 3.e3f4 b6d4 
  4/6    +0.98    0.12    56141 1.e5d3 f6g4 2.d3xb4 g4xe3 3.b4xc6 b7xc6 
                                4.f2xe3 
   <6>   +0.98    0.15    78035 1.e5d3 f6g4 2.d3xb4 g4xe3 3.b4xc6 b7xc6 
                                4.f2xe3 
    7    +0.66    0.20    99828 1.e5d3 f6g4 2.d3xb4 g4xe3 3.b4xc6 d4d6 
                                4.c6e7 Kd8 5.e5 e3xf1 6.e5xd6 c7xd6 
  2/7    +0.83    0.28   142038 1.a3 b4b6 2.e5f3 d4d8 3.e3e2 e6g4 
                                4.b4 g4xf3 5.e2xf3 
   <7>   +0.83    0.53   278667 1.a3 b4b6 2.e5f3 d4d8 3.e3e2 e6g4 
                                4.b4 g4xf3 5.e2xf3 
    8    +0.90    0.79   427924 1.a3 b4b6 2.b4 d4d8 3.e3g3 f6h5 
                                4.g3g5 b6d4 5.g5xh5 d4xc3 6.e5xf7 e6xf7 
                                7.h5xf7 c3xc2 
   <8>   +0.90    1.17   659580 1.a3 b4b6 2.b4 d4d8 3.e3g3 f6h5 
                                4.g3g5 b6d4 5.g5xh5 d4xc3 6.e5xf7 e6xf7 
                                7.h5xf7 c3xc2 
    9    +0.84    1.56   923178 1.a3 b4b6 2.b4 h8d8 3.e5f3 d4d7 
                                4.e3e2 e6g4 5.c3a4 
   <9>   +0.84    2.68  1648710 1.a3 b4b6 2.b4 h8d8 3.e5f3 d4d7 
                                4.e3e2 e6g4 5.c3a4 
   10    +1.00    3.47  2187901 1.a3 b4b6 2.b4 h8d8 3.e3g5 f6xe4 
                                4.c3xe4 d4xe4 5.e5xf7 e6xf7 6.g5f5 e4e6 
                                7.f5xf7 
  <10>   +1.00    4.31  2825981 1.a3 b4b6 2.b4 h8d8 3.e3g5 f6xe4 
                                4.c3xe4 d4xe4 5.e5xf7 e6xf7 6.g5f5 e4e6 
                                7.f5xf7 
   11    +0.71    7.45  4886220 1.a3 b4b6 2.b4 h8d8 3.c3a4 b6b5 
                                4.a4c5 d4d2 5.c5xe6 f7xe6 6.e5f7 f6g4 
                                7.e3a7 
  <11>   +0.71   10.00  6580505 1.a3 b4b6 2.b4 h8d8 3.c3a4 b6b5 
                                4.a4c5 d4d2 5.c5xe6 f7xe6 6.e5f7 f6g4 
                                7.e3a7 

Computed move :   a3
NPS:              658050
no solution found [:-( [1/3]!
[Diagram of position #4]

Test position #4

White to move


FEN :          rn3rk1/4bppp/1q2p3/p2pP3/8/1PN2B1P/P4PP1/2RQ1RK1 w - -
Best Move :    Bxd5 
Position ID:  "ECM.961"

 depth   value    time    nodes pv
    1    +0.04    0.00        2 1.d1c2 
   <1>   +0.04    0.00       36 1.d1c2 
    2    -0.18    0.00       86 1.d1c2 f8c8 
   <2>   -0.18    0.00      237 1.d1c2 f8c8 
    3    -0.15    0.00      846 1.d1c2 b8d7 2.f1e1 
  2/3    +0.05    0.02     1163 1.c3a4 b6d8 2.d1d4 
   <3>   +0.05    0.02     1545 1.c3a4 b6d8 2.d1d4 
    4    -0.07    0.02     2946 1.c3a4 b6a7 2.d1c2 a7d7 
   <4>   -0.07    0.02     5482 1.c3a4 b6a7 2.d1c2 a7d7 
    5    -0.09    0.03     8697 1.c3a4 b6a7 2.d1c2 e7g5 3.c1b1 
   <5>   -0.09    0.05    16413 1.c3a4 b6a7 2.d1c2 e7g5 3.c1b1 
    6    -0.27    0.06    27374 1.c3a4 b6a7 2.d1c2 e7g5 3.c1b1 b8d7 
                                4.f1e1 
  2/6    +0.06    0.08    40536 1.f3xd5 e6xd5 2.c3xd5 b6d8 3.c1c7 e7b4 
   <6>   +0.06    0.10    50998 1.f3xd5 e6xd5 2.c3xd5 b6d8 3.c1c7 e7b4 
    7    +0.08    0.13    67378 1.f3xd5 e6xd5 2.c3xd5 b6d8 3.c1c7 e7g5 
                                4.d1d4 b8d7 
   <7>   +0.08    0.16    87176 1.f3xd5 e6xd5 2.c3xd5 b6d8 3.c1c7 e7g5 
                                4.d1d4 b8d7 
!   8    +0.50    0.20   122277 1.f3xd5 
!   8    +1.01    0.30   193156 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 b6a7 
                                4.a8e4 a7c7 5.c3d5 
   <8>   +1.01    0.31   202557 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 b6a7 
                                4.a8e4 a7c7 5.c3d5 
    9    +0.78    0.56   401886 1.f3xd5 f8d8 2.d1f3 e6xd5 3.c3xd5 d8xd5 
                                4.f3xd5 a8a7 5.c1c8 e7f8 6.f1d1 
   <9>   +0.78    0.60   427201 1.f3xd5 f8d8 2.d1f3 e6xd5 3.c3xd5 d8xd5 
                                4.f3xd5 a8a7 5.c1c8 e7f8 6.f1d1 
   10    +0.93    1.03   796083 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 e7f8 
                                4.c3a4 b6b5 5.d1e1 b5d7 6.a4c5 
  <10>   +0.93    1.11   880851 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 e7f8 
                                4.c3a4 b6b5 5.d1e1 b5d7 6.a4c5 
   11    +0.81    1.74  1336954 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 e7f8 
                                4.c3a4 b6b5 5.d1e1 b5d7 6.c1c2 f8e7 
                                7.a4c5 
  <11>   +0.81    1.99  1587452 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 e7f8 
                                4.c3a4 b6b5 5.d1e1 b5d7 6.c1c2 f8e7 
                                7.a4c5 
   12    +1.21    5.24  3836131 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 b8a6 
                                4.d1d7 e7g5 5.a8b7 g5xc1 6.c3a4 b6c7 
                                7.d7xc7 a6xc7 
  <12>   +1.21    5.72  4360816 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 b8a6 
                                4.d1d7 e7g5 5.a8b7 g5xc1 6.c3a4 b6c7 
                                7.d7xc7 a6xc7 
  <13>   +1.21   10.00  7399248 1.f3xd5 f8d8 2.d5xa8 d8xd1 3.f1xd1 b8a6 
                                4.d1d7 e7g5 5.a8b7 g5xc1 6.c3a4 b6c7 
                                7.d7xc7 a6xc7 8.a4c3 c1d2 

Computed move :   f3xd5
NPS:              739924
solution found [2/4], time: 0.08, points: 25, nodes: 50998!
[Diagram of position #5]

Test position #5

White to move


FEN :          2r2bk1/4qp2/3n2p1/2R1p1Np/2p1N3/r6P/1Q3PP1/3R2K1 w - -
Best Move :    Rxc8 
Position ID:  "ECM.973"

 depth   value    time    nodes pv
    1    -0.02    0.00       32 1.b2xa3 d6xe4 
  4/1    +1.52    0.00       56 1.e4xd6 c8xc5 2.b2xa3 
   <1>   +1.52    0.00      159 1.e4xd6 c8xc5 2.b2xa3 
    2    +1.52    0.00      219 1.e4xd6 c8xc5 
   <2>   +1.52    0.01     1191 1.e4xd6 c8xc5 
    3    +1.52    0.01     1641 1.e4xd6 c8xc5 2.b2xa3 
   <3>   +1.52    0.01     2896 1.e4xd6 c8xc5 2.b2xa3 
    4    +1.69    0.01     4763 1.e4xd6 a3d3 2.d1xd3 c8xc5 
   <4>   +1.69    0.03     9094 1.e4xd6 a3d3 2.d1xd3 c8xc5 
    5    +1.55    0.03    13965 1.e4xd6 a3d3 2.c5d5 d3xd5 3.d1xd5 
   <5>   +1.55    0.06    28232 1.e4xd6 a3d3 2.c5d5 d3xd5 3.d1xd5 
!   6    +1.97    0.07    38737 1.e4xd6 
!   6    +2.45    0.12    58483 1.e4xd6 a3b3 2.b2xe5 e7xe5 3.c5xe5 f8xd6 
                                4.d1xd6 
   <6>   +2.45    0.17    97103 1.e4xd6 a3b3 2.b2xe5 e7xe5 3.c5xe5 f8xd6 
                                4.d1xd6 
?   7    +1.67    0.39   242044 1.e4xd6 c8xc5 2.b2xa3 c5c6 3.g5e4 c3 
                                4.a3a8 
   <7>   +1.67    0.51   323698 1.e4xd6 c8xc5 2.b2xa3 c5c6 3.g5e4 c3 
                                4.a3a8 
    8    +1.48    0.61   388855 1.e4xd6 c8xc5 2.b2xa3 c5c6 3.g5e4 e7d8 
                                4.a3a4 c6xd6 5.e4xd6 f8xd6 6.a4xc4 
   <8>   +1.48    0.81   542205 1.e4xd6 c8xc5 2.b2xa3 c5c6 3.g5e4 e7d8 
                                4.a3a4 c6xd6 5.e4xd6 f8xd6 6.a4xc4 
    9    +1.48    0.98   679890 1.e4xd6 c8xc5 2.b2xa3 c5c6 3.g5e4 e7d8 
                                4.a3a4 c6xd6 5.e4xd6 f8xd6 6.a4xc4 
   <9>   +1.48    1.42  1059460 1.e4xd6 c8xc5 2.b2xa3 c5c6 3.g5e4 e7d8 
                                4.a3a4 c6xd6 5.e4xd6 f8xd6 6.a4xc4 
   10    +1.59    2.15  1622830 1.e4xd6 a3d3 2.c5d5 d3xd1 3.d5xd1 c8d8 
                                4.g5xf7 e7xf7 5.d6xf7 d8xd1 6.Kh2 Kxf7 
                                7.b2e2 d1d4 8.e2xe5 
  <10>   +1.59    2.89  2230840 1.e4xd6 a3d3 2.c5d5 d3xd1 3.d5xd1 c8d8 
                                4.g5xf7 e7xf7 5.d6xf7 d8xd1 6.Kh2 Kxf7 
                                7.b2e2 d1d4 8.e2xe5 
   11    +1.18    3.78  2934045 1.e4xd6 a3d3 2.c5d5 d3xd1 3.d5xd1 c8d8 
                                4.g5xf7 e7xf7 5.d6xf7 d8xd1 6.Kh2 Kxf7 
                                7.b2e2 d1c1 8.e2xe5 c3 
 2/11    +1.65    7.48  5490296 1.d1xd6 c8xc5 2.b2xa3 c5c7 3.a3a8 Kg7 
                                4.a8d5 c3 5.g5e6 f7xe6 6.d6xe6 e7f7 
                                7.d5xe5 Kg8 8.e4xc3 
  <11>   +1.65    8.87  6669667 1.d1xd6 c8xc5 2.b2xa3 c5c7 3.a3a8 Kg7 
                                4.a8d5 c3 5.g5e6 f7xe6 6.d6xe6 e7f7 
                                7.d5xe5 Kg8 8.e4xc3 
  <12>   +1.65   10.00  7448620 1.d1xd6 c8xc5 2.b2xa3 c5c7 3.a3a8 c3 
                                4.e4f6 Kg7 5.a8a1 c7c5 6.d6a6 c5c8 
                                7.a1f1 Kh8 8.f1d3 

Computed move :   d1xd6
NPS:              744862
no solution found [:-( [2/5]!
[Diagram of position #6]

Test position #6

Black to move


FEN :          r1b1rnk1/1p3pb1/1qpp2p1/2n5/2PNP2p/1PN3PP/3R1PBK/BR1Q4 b - -
Best Move :    Rxa1 
Position ID:  "ECM.977"

 depth   value    time    nodes pv
    1    +0.96    0.00      363 1... h4xg3 2.f2xg3 b6c7 
   <1>   +0.96    0.00      427 1... h4xg3 2.f2xg3 b6c7 
    2    +0.90    0.00      916 1... h4xg3 2.f2xg3 b6c7 3.d1e1 
   <2>   +0.90    0.02     1630 1... h4xg3 2.f2xg3 b6c7 3.d1e1 
    3    +1.07    0.02     6192 1... h4xg3 2.f2xg3 g7h6 3.c3a4 b6c7 
   <3>   +1.07    0.03     7357 1... h4xg3 2.f2xg3 g7h6 3.c3a4 b6c7 
    4    +0.89    0.05    13472 1... h4xg3 2.f2xg3 g7h6 3.d2f2 b6c7 
                                4.d1f1 
  5/4    +1.11    0.06    18119 1... g7h6 2.g4 h6xd2 3.d1xd2 
   <4>   +1.11    0.08    22184 1... g7h6 2.g4 h6xd2 3.d1xd2 
    5    +1.21    0.09    32396 1... g7h6 2.d2e2 h4xg3 3.f2xg3 b6c7 
                                4.d1f1 
   <5>   +1.21    0.14    49165 1... g7h6 2.d2e2 h4xg3 3.f2xg3 b6c7 
                                4.d1f1 
  2/6    +0.98    0.52   224467 1... h4xg3 2.f2xg3 f8d7 3.Kh1 d7e5 
                                4.d1g1 g7h6 5.d2f2 
   <6>   +0.98    0.70   302019 1... h4xg3 2.f2xg3 f8d7 3.Kh1 d7e5 
                                4.d1g1 g7h6 5.d2f2 
    7    +0.94    1.61   757840 1... h4xg3 2.f2xg3 g7h6 3.d2b2 b6c7 
                                4.b4 c5d7 5.b2a2 a8xa2 6.c3xa2 
!14/7    +1.40    2.13  1014527 1... a8xa1 
!   7    +1.40    2.14  1022708 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.c3e2 b3xa1 5.d1xa1 h4xg3 6.f2xg3 
   <7>   +1.40    2.25  1083880 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.c3e2 b3xa1 5.d1xa1 h4xg3 6.f2xg3 
    8    +1.40    2.33  1132271 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.c3e2 b3xa1 5.d1xa1 h4xg3 
   <8>   +1.40    2.63  1332624 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.c3e2 b3xa1 5.d1xa1 h4xg3 
    9    +1.63    2.81  1460636 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.d4d2 b3xa1 5.d1xa1 h4xg3 6.f2xg3 b6c7 
   <9>   +1.63    3.44  1885081 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.d4d2 b3xa1 5.d1xa1 h4xg3 6.f2xg3 b6c7 
   10    +1.57    3.78  2140738 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.d4d2 b3xa1 5.d1xa1 c8e6 6.a1e1 h4xg3 
                                7.f2xg3 b6c5 
  <10>   +1.57    5.22  3190619 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.d4d2 b3xa1 5.d1xa1 c8e6 6.a1e1 h4xg3 
                                7.f2xg3 b6c5 
   11    +1.61    6.05  3807038 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.d4d2 b3xa1 5.d1xa1 c8e6 6.a1a3 h4xg3 
                                7.Kxg3 e6xc4 8.a3xd6 
  <11>   +1.61   10.00  6791929 1... a8xa1 2.b1xa1 g7xd4 3.d2xd4 c5xb3 
                                4.d4d2 b3xa1 5.d1xa1 c8e6 6.a1a3 h4xg3 
                                7.Kxg3 e6xc4 8.a3xd6 

Computed move :   a8xa1
NPS:              677837
solution found [3/6], time: 2.13, points: 16, nodes: 1014527!
[Diagram of position #7]

Test position #7

White to move


FEN :          r1b2rk1/pp2b3/2pn1n1p/3pNppq/3P4/BP1N2P1/P3PPBP/R1Q2RK1 w - -
Best Move :    Nxc6 
Position ID:  "ECM.978"

 depth   value    time    nodes pv
    1    +0.76    0.00        4 1.a3xd6 e7xd6 
  2/1    +1.39    0.00        6 1.c1d2 
   <1>   +1.39    0.00      148 1.c1d2 
    2    +1.25    0.00      251 1.c1d2 d6e4 
   <2>   +1.25    0.00      727 1.c1d2 d6e4 
  4/3    +1.02    0.00     2332 1.c1c2 f6g4 2.h3 
   <3>   +1.02    0.01     5714 1.c1c2 f6g4 2.h3 
    4    +1.09    0.01     7612 1.c1c2 f4 2.g3xf4 c8h3 3.g2xh3 h5xh3 
                                4.f4xg5 h6xg5 
   <4>   +1.09    0.04    16216 1.c1c2 f4 2.g3xf4 c8h3 3.g2xh3 h5xh3 
                                4.f4xg5 h6xg5 
    5    +0.85    0.04    20643 1.c1c2 f4 2.g3xf4 f6g4 3.h3 g4xe5 
                                4.f4xe5 
 45/5    +0.88    0.17    73400 1.f3 c8d7 2.c1d2 f4 3.g3xf4 
   <5>   +0.88    0.18    73972 1.f3 c8d7 2.c1d2 f4 3.g3xf4 
    6    +0.86    0.23   101251 1.f3 h5e8 2.c1d2 d6b5 3.a3xe7 e8xe7 
   <6>   +0.86    0.45   211455 1.f3 h5e8 2.c1d2 d6b5 3.a3xe7 e8xe7 
    7    +0.98    0.61   285275 1.f3 h5e8 2.c1d2 f6d7 3.f1e1 d6b5 
                                4.a3xe7 e8xe7 
 17/7    +1.04    1.03   509192 1.c1c2 f6e4 2.d3b2 f4 3.g2xe4 d5xe4 
                                4.a3xd6 e7xd6 5.c2xe4 
   <7>   +1.04    1.14   577482 1.c1c2 f6e4 2.d3b2 f4 3.g2xe4 d5xe4 
                                4.a3xd6 e7xd6 5.c2xe4 
    8    +1.04    1.86  1002517 1.c1c2 f6e4 2.d3b2 f4 3.g2xe4 d5xe4 
                                4.a3xd6 e7xd6 5.c2xe4 
   <8>   +1.04    2.42  1336140 1.c1c2 f6e4 2.d3b2 f4 3.g2xe4 d5xe4 
                                4.a3xd6 e7xd6 5.c2xe4 
    9    +0.96    5.73  3118886 1.c1c2 c8e6 2.f3 a5 3.c2d2 f6d7 
                                4.f1e1 f4 5.g3xf4 d7xe5 6.f4xe5 
  2/9    +1.01    6.84  3758286 1.f1e1 h5e8 2.a1b1 f6g4 3.c1c2 g4xe5 
                                4.d3xe5 f4 5.e4 f4xg3 6.h2xg3 d6xe4 
                                7.a3xe7 e8xe7 8.g2xe4 d5xe4 9.e1xe4 
!14/9    +1.46    9.64  5808200 1.e5xc6 
!   9    +1.92    9.92  5978577 1.e5xc6 b7xc6 2.a3xd6 e7xd6 3.c1xc6 h5xe2 
                                4.c6xd6 c8b7 5.d3e5 a8c8 
   <9>   +1.92    9.96  6023068 1.e5xc6 b7xc6 2.a3xd6 e7xd6 3.c1xc6 h5xe2 
                                4.c6xd6 c8b7 5.d3e5 a8c8 
  <10>   +1.92   10.00  6040295 1.e5xc6 b7xc6 2.a3xd6 e7xd6 3.c1xc6 h5xe2 
                                4.c6xd6 c8b7 5.d3e5 a8e8 6.f1e1 e2d2 

Computed move :   e5xc6
NPS:              604029
solution found [4/7], time: 9.64, points: 11, nodes: 5808200!
[Diagram of position #8]

Test position #8

Black to move


FEN :          3rkb1r/1p3p2/p1n1p3/q5pp/2PpP3/1P4P1/P1Q1BPKP/R2N3R b k -
Best Move :    d3 
Position ID:  "ECM.986"

 depth   value    time    nodes pv
    1    +0.55    0.00        2 1... f8a3 
 28/1    +0.60    0.00       35 1... h4 
   <1>   +0.60    0.00       53 1... h4 
    2    +0.36    0.01      126 1... h4 2.g4 
  2/2    +0.55    0.01      205 1... f8a3 2.e2d3 
   <2>   +0.55    0.01      397 1... f8a3 2.e2d3 
    3    +0.88    0.01      767 1... f8a3 2.h1g1 h4 3.g3xh4 
   <3>   +0.88    0.01     1108 1... f8a3 2.h1g1 h4 3.g3xh4 
    4    +0.74    0.01     2619 1... f8a3 2.e2d3 a5e5 3.c2d2 
  4/4    +0.76    0.03     4505 1... h4 2.g3xh4 h8xh4 3.h1g1 
   <4>   +0.76    0.04     7137 1... h4 2.g3xh4 h8xh4 3.h1g1 
    5    +0.91    0.06    15211 1... h4 2.g4 f8a3 3.e2d3 a5c7 
   <5>   +0.91    0.09    21137 1... h4 2.g4 f8a3 3.e2d3 a5c7 
    6    +0.97    0.14    42118 1... h4 2.g4 h3 3.Kf1 f8a3 
                                4.e2d3 a5c7 
   <6>   +0.97    0.17    55668 1... h4 2.g4 h3 3.Kf1 f8a3 
                                4.e2d3 a5c7 
    7    +0.98    0.25    90270 1... h4 2.g4 h3 3.Kf1 f8a3 
                                4.h1g1 a5e5 5.g1g3 d3 
   <7>   +0.98    0.29   115684 1... h4 2.g4 h3 3.Kf1 f8a3 
                                4.h1g1 a5e5 5.g1g3 d3 
    8    +1.08    0.50   217838 1... h4 2.g4 h3 3.Kf1 f8a3 
                                4.e2d3 c6e5 5.c2e2 e5xd3 6.e2xd3 
   <8>   +1.08    0.53   238465 1... h4 2.g4 h3 3.Kf1 f8a3 
                                4.e2d3 c6e5 5.c2e2 e5xd3 6.e2xd3 
    9    +1.08    1.12   558153 1... h4 2.e2d3 h4xg3 3.h2xg3 h8xh1 
                                4.Kxh1 a5e1 5.Kh2 c6b4 6.c2e2 b4xd3 
                                7.e2xd3 
   <9>   +1.08    1.20   608953 1... h4 2.e2d3 h4xg3 3.h2xg3 h8xh1 
                                4.Kxh1 a5e1 5.Kh2 c6b4 6.c2e2 b4xd3 
                                7.e2xd3 
   10    +1.18    2.23  1172536 1... h4 2.e2d3 h4xg3 3.h2xg3 h8xh1 
                                4.Kxh1 a5e1 5.Kh2 c6b4 6.c2e2 b4xd3 
                                7.e2xd3 f8a3 
!4/10    +1.50    2.53  1411550 1... d3 
!  10    +2.25    2.90  1689545 1... d3 
!  10    +2.48    3.29  1984968 1... d3 2.e2xd3 a5e5 3.f4 g5xf4 
                                4.d1f2 f3 5.Kh3 c6b4 6.c2d2 b4xd3 
                                7.f2xd3 e5xe4 
  <10>   +2.48    3.31  2007373 1... d3 2.e2xd3 a5e5 3.f4 g5xf4 
                                4.d1f2 f3 5.Kh3 c6b4 6.c2d2 b4xd3 
                                7.f2xd3 e5xe4 
   11    +2.26    4.03  2564161 1... d3 2.e2xd3 a5e5 3.d1b2 f8a3 
                                4.b2a4 c6b4 5.c2e2 b4xd3 6.a1d1 e5d4 
                                7.a4b6 
  <11>   +2.26    4.15  2725509 1... d3 2.e2xd3 a5e5 3.d1b2 f8a3 
                                4.b2a4 c6b4 5.c2e2 b4xd3 6.a1d1 e5d4 
                                7.a4b6 
!  12    +2.68    5.09  3349595 1... d3 
!  12    +2.80    9.53  6665986 1... d3 2.e2xd3 a5e5 3.a1b1 c6b4 
                                4.c2b2 b4xd3 5.b2xe5 d3xe5 6.h4 g5xh4 
                                7.h1xh4 f8e7 8.h4h1 
  <12>   +2.80   10.00  7063618 1... d3 2.e2xd3 a5e5 3.a1b1 c6b4 
                                4.c2b2 b4xd3 5.b2xe5 d3xe5 6.h4 g5xh4 
                                7.h1xh4 f8e7 8.h4h1 
  <13>   +2.80   10.01  7069172 1... d3 2.e2xd3 a5e5 3.a1b1 c6b4 
                                4.c2b2 b4xd3 5.b2xe5 d3xe5 6.h4 

Computed move :   d3
NPS:              706210
solution found [5/8], time: 2.53, points: 16, nodes: 1411550!
[Diagram of position #9]

Test position #9

White to move


FEN :          5rk1/1r1qbnnp/R2p2p1/1p1Pp3/1Pp1P1N1/2P1B1NP/5QP1/5R1K w - -
Best Move :    Qxf7+ 
Position ID:  "ECM.987"

 depth   value    time    nodes pv
    1    +0.32    0.00        2 1.g4h2 
  2/1    +0.47    0.00        4 1.Kg1 
 27/1    +0.97    0.00       91 1.g4f6 e7xf6 2.f2xf6 
   <1>   +0.97    0.00      213 1.g4f6 e7xf6 2.f2xf6 
    2    +0.79    0.00      565 1.g4f6 e7xf6 2.f2xf6 Kh8 
   <2>   +0.79    0.01     1699 1.g4f6 e7xf6 2.f2xf6 Kh8 
  4/3    +0.71    0.01     7528 1.Kg1 d7d8 2.e3b6 
   <3>   +0.71    0.01     8086 1.Kg1 d7d8 2.e3b6 
    4    +0.75    0.03     9744 1.Kg1 Kh8 2.g4f6 e7xf6 
  5/4    +0.89    0.03    17232 1.e3h6 d7e8 2.h6xg7 Kxg7 
   <4>   +0.89    0.04    22291 1.e3h6 d7e8 2.h6xg7 Kxg7 
    5    +0.88    0.06    28002 1.e3h6 d7d8 2.h6xg7 Kxg7 3.Kg1 
   <5>   +0.88    0.09    58288 1.e3h6 d7d8 2.h6xg7 Kxg7 3.Kg1 
    6    +0.63    0.12    76794 1.e3h6 d7d8 2.f2d2 e7h4 3.h6xg7 Kxg7 
   <6>   +0.63    0.28   203123 1.e3h6 d7d8 2.f2d2 e7h4 3.h6xg7 Kxg7 
    7    +0.60    0.43   303220 1.e3h6 d7d8 2.a6a1 e7h4 3.Kg1 d8b6 
                                4.f2xb6 b7xb6 5.h6xg7 Kxg7 
   <7>   +0.60    0.95   716136 1.e3h6 d7d8 2.a6a1 e7h4 3.Kg1 d8b6 
                                4.f2xb6 b7xb6 5.h6xg7 Kxg7 
    8    +0.66    1.34   981852 1.e3h6 d7d8 2.f1a1 e7g5 3.h6xg5 f7xg5 
                                4.g4h6 Kh8 5.f2e2 d8e7 
   <8>   +0.66    1.75  1385855 1.e3h6 d7d8 2.f1a1 e7g5 3.h6xg5 f7xg5 
                                4.g4h6 Kh8 5.f2e2 d8e7 
    9    +0.57    2.57  2041805 1.e3h6 d7d8 2.Kg1 Kh8 3.f2e3 e7h4 
                                4.a6a1 h4xg3 5.h6xg7 Kxg7 6.e3xg3 
! 3/9    +1.08    2.98  2427812 1.f2xf7 
!   9    +1.83    3.04  2470430 1.f2xf7 
!   9    +3.70    3.57  2898986 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g8 d7f7 9.Kh2 
   <9>   +3.70    3.71  3060795 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g8 d7f7 9.Kh2 
   10    +3.49    4.31  3670293 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g4 h5 9.g4f2 d7f7 
                                10.Kg1 
  <10>   +3.49    4.64  4058448 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g4 h5 9.g4f2 d7f7 
                                10.Kg1 
   11    +3.38    5.89  5398640 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g4 h5 9.g4h2 g5d2 
                                10.g3e2 d7f7 
  <11>   +3.38    6.68  6362478 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g4 h5 9.g4h2 g5d2 
                                10.g3e2 d7f7 
   12    +3.58    9.21  8738958 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g4 d7f7 9.g3e2 h5 
                                10.g4h2 g5e3 11.h2f3 g5 
  <12>   +3.58   10.00  9701426 1.f2xf7 f8xf7 2.g4h6 Kh8 3.a6a8 g7e8 
                                4.f1xf7 b7c7 5.e3g5 e7xg5 6.f7xd7 c7xd7 
                                7.a8xe8 Kg7 8.h6g4 d7f7 9.g3e2 h5 
                                10.g4h2 g5e3 11.h2f3 g5 

Computed move :   f2xf7
NPS:              970142
solution found [6/9], time: 2.98, points: 14, nodes: 2427812!
[Diagram of position #10]

Test position #10

Black to move


FEN :          5r2/1b2k2p/3bp3/5PP1/Bn1Q3P/1N6/1Pr5/1K3R2 b - -
Best Move :    Rxb2+ 
Position ID:  "ECM.993"

 depth   value    time    nodes pv
    1    -3.62    0.00        6 1... c2g2 
 12/1    -2.20    0.02       19 1... e6xf5 
   <1>   -2.20    0.02      145 1... e6xf5 
    2    -2.39    0.02      223 1... e6xf5 2.d4g7 f8f7 
   <2>   -2.39    0.02     1065 1... e6xf5 2.d4g7 f8f7 
?   3    -3.30    0.03     5294 1... e6xf5 2.f1e1 b7e4 3.e1xe4 f5xe4 
                                4.d4xe4 Kf7 5.e4xh7 Ke6 
   <3>   -3.30    0.03     8402 1... e6xf5 2.f1e1 b7e4 3.e1xe4 f5xe4 
                                4.d4xe4 Kf7 5.e4xh7 Ke6 
    4    -3.30    0.05    11308 1... e6xf5 2.f1e1 b7e4 3.e1xe4 f5xe4 
                                4.d4xe4 
   <4>   -3.30    0.06    22430 1... e6xf5 2.f1e1 b7e4 3.e1xe4 f5xe4 
                                4.d4xe4 
    5    -3.30    0.08    29465 1... e6xf5 2.f1e1 b7e4 3.e1xe4 f5xe4 
                                4.d4xe4 Kf7 5.e4xh7 
   <5>   -3.30    0.12    55062 1... e6xf5 2.f1e1 b7e4 3.e1xe4 f5xe4 
                                4.d4xe4 Kf7 5.e4xh7 
    6    -3.64    0.20   101415 1... e6xf5 2.b3a5 b7e4 3.a4xc2 e4xc2 
                                4.Kc1 f8a8 5.a5c4 
   <6>   -3.64    0.39   214368 1... e6xf5 2.b3a5 b7e4 3.a4xc2 e4xc2 
                                4.Kc1 f8a8 5.a5c4 
    7    -3.42    0.56   327487 1... e6xf5 2.f1d1 b7d5 3.b3a5 c2c7 
                                4.a5c6 c7xc6 5.a4xc6 b4xc6 6.d4xd5 
! 7/7    -3.22    2.06  1175387 1... c2xb2 
!   7    -2.47    2.70  1548328 1... c2xb2 
!   7    -2.25    3.69  2164303 1... c2xb2 2.Kc1 f8c8 3.Kxb2 d6e5 
                                4.f5xe6 e5xd4 5.b3xd4 b4d3 6.Ka3 d3e5 
                                7.f1e1 c8c5 
   <7>   -2.25    3.78  2234019 1... c2xb2 2.Kc1 f8c8 3.Kxb2 d6e5 
                                4.f5xe6 e5xd4 5.b3xd4 b4d3 6.Ka3 d3e5 
                                7.f1e1 c8c5 
    8    -2.49    6.16  3880999 1... c2xb2 2.Kc1 f8c8 3.Kxb2 d6e5 
                                4.f6 Kf8 5.a4d7 c8c4 6.f1d1 e5xd4 
                                7.d1xd4 b7d5 8.d4xc4 d5xc4 
   <8>   -2.49    6.34  4018297 1... c2xb2 2.Kc1 f8c8 3.Kxb2 d6e5 
                                4.f6 Kf8 5.a4d7 c8c4 6.f1d1 e5xd4 
                                7.d1xd4 b7d5 8.d4xc4 d5xc4 
   <9>   -2.49   10.00  6736945 1... c2xb2 2.Kc1 f8c8 3.Kxb2 d6e5 
                                4.f6 Kf8 5.f1d1 e5xd4 6.d1xd4 b4c2 
                                7.d4d7 b7e4 8.d7e7 c8c4 

Computed move :   c2xb2
NPS:              673694
solution found [7/10], time: 2.06, points: 16, nodes: 1175387!
© Steffen A. Jakob