[fen]4k3/3p1p2/8/4P3/4K3/8/8/8 b - - 0 1[/fen]
The vanilla move generator of Pygmalion (which is quite well tested) gives these perft results:
Code: Select all
perft 1
d7d6
f7f6
d7d5
f7f5
e8e7
e8d8
e8f8
depth: 1 nodes: 7.00 N time: 428 mcs speed: 16.4 kN/s
Leafs: 7
Captures: 0
En passant: 0
Castles: 0
Promotions: 0
Checks: 2
Checkmates: 0
Double pushes: 2
Queenside castles: 0
Kingside castles: 0
perft 2
d7d6 : 9
f7f6 : 9
d7d5 : 8
f7f5 : 8
e8e7 : 8
e8d8 : 8
e8f8 : 8
depth: 2 nodes: 14.0 N time: 2.24 ms speed: 6.26 kN/s
Leafs: 58
Captures: 6
En passant: 2
Castles: 0
Promotions: 0
Checks: 0
Checkmates: 0
Double pushes: 0
Queenside castles: 0
Kingside castles: 0
perft 3
d7d6 : 66
f7f6 : 66
d7d5 : 51
f7f5 : 51
e8e7 : 64
e8d8 : 64
e8f8 : 64
depth: 3 nodes: 72.0 N time: 2.85 ms speed: 25.3 kN/s
Leafs: 426
Captures: 23
En passant: 0
Castles: 0
Promotions: 0
Checks: 20
Checkmates: 0
Double pushes: 72
Queenside castles: 0
Kingside castles: 0
perft 4
d7d6 : 546
f7f6 : 546
d7d5 : 369
f7f5 : 369
e8e7 : 511
e8d8 : 522
e8f8 : 522
depth: 4 nodes: 498 N time: 2.70 ms speed: 184 kN/s
Leafs: 3385
Captures: 316
En passant: 60
Castles: 0
Promotions: 0
Checks: 90
Checkmates: 0
Double pushes: 0
Queenside castles: 0
Kingside castles: 0
perft 5
d7d6 : 4076
f7f6 : 4076
d7d5 : 2606
f7f5 : 2606
e8e7 : 4107
e8d8 : 4183
e8f8 : 4183
depth: 5 nodes: 3.88 kN time: 6.90 ms speed: 562 kN/s
Leafs: 25837
Captures: 1958
En passant: 0
Castles: 0
Promotions: 0
Checks: 1420
Checkmates: 0
Double pushes: 3248
Queenside castles: 0
Kingside castles: 0
perft 6
d7d6 : 33678
f7f6 : 33678
d7d5 : 20578
f7f5 : 20578
e8e7 : 34232
e8d8 : 35681
e8f8 : 35681
depth: 6 nodes: 29.7 kN time: 39.9 ms speed: 745 kN/s
Leafs: 214106
Captures: 18444
En passant: 2330
Castles: 0
Promotions: 1000
Checks: 7256
Checkmates: 0
Double pushes: 0
Queenside castles: 0
Kingside castles: 0
Vanilla movegen yields:
Code: Select all
perft 1
b2b3
d2d3
b2b4
d2d4
c1b1
c1d1
c1c2
depth: 1 nodes: 7.00 N time: 1.99 ms speed: 3.52 kN/s
Leafs: 7
Captures: 0
En passant: 0
Castles: 0
Promotions: 0
Checks: 2
Checkmates: 0
Double pushes: 2
Queenside castles: 0
Kingside castles: 0
perft 2
b2b3 : 9
d2d3 : 9
b2b4 : 8
d2d4 : 8
c1b1 : 8
c1d1 : 8
c1c2 : 8
depth: 2 nodes: 14.0 N time: 2.97 ms speed: 4.72 kN/s
Leafs: 58
Captures: 6
En passant: 2
Castles: 0
Promotions: 0
Checks: 0
Checkmates: 0
Double pushes: 0
Queenside castles: 0
Kingside castles: 0
perft 3
b2b3 : 66
d2d3 : 66
b2b4 : 51
d2d4 : 51
c1b1 : 64
c1d1 : 64
c1c2 : 64
depth: 3 nodes: 72.0 N time: 2.40 ms speed: 30.1 kN/s
Leafs: 426
Captures: 23
En passant: 0
Castles: 0
Promotions: 0
Checks: 20
Checkmates: 0
Double pushes: 72
Queenside castles: 0
Kingside castles: 0
perft 4
b2b3 : 546
d2d3 : 546
b2b4 : 369
d2d4 : 369
c1b1 : 522
c1d1 : 522
c1c2 : 511
depth: 4 nodes: 498 N time: 2.57 ms speed: 194 kN/s
Leafs: 3385
Captures: 316
En passant: 60
Castles: 0
Promotions: 0
Checks: 90
Checkmates: 0
Double pushes: 0
Queenside castles: 0
Kingside castles: 0
perft 5
b2b3 : 4076
d2d3 : 4076
b2b4 : 2606
d2d4 : 2606
c1b1 : 3858
c1d1 : 4183
c1c2 : 4107
depth: 5 nodes: 3.88 kN time: 6.06 ms speed: 641 kN/s
Leafs: 25512
Captures: 1958
En passant: 0
Castles: 0
Promotions: 0
Checks: 1420
Checkmates: 0
Double pushes: 3248
Queenside castles: 0
Kingside castles: 0
perft 6
b2b3 : 32326
d2d3 : 32174
b2b4 : 19636
d2d4 : 19371
c1b1 : 31474
c1d1 : 34229
c1c2 : 32857
depth: 6 nodes: 29.4 kN time: 38.9 ms speed: 756 kN/s
Leafs: 202067
Captures: 18287
En passant: 2330
Castles: 0
Promotions: 940
Checks: 7240
Checkmates: 0
Double pushes: 0
Queenside castles: 0
Kingside castles: 0