That entire table is wrong.Kotlov wrote:please correct CPW
http://chessprogramming.wikispaces.com/Perft+Results
Position 5
This position was discussed on Talkchess and caught bugs in engines several years old at depth 3.[5]
Depth
Nodes
1 42 - 44!!!
2 1352
3 53392
Symbolic, running on a BeagleBone Black, says:
Code: Select all
[] sf rnbq1k1r/pp1Pbppp/2p5/8/2B5/8/PPP1NnPP/RNBQK2R w KQ - 1 8
[] pctran 0
Count: 1 Pt: 0.000 Wt: 0.000 U: 0 Inf Hz 0 s
[] pctran 1
Count: 44 Pt: 0.000 Wt: 0.000 U: 0 Inf Hz 0 s
[] pctran 2
Count: 1,486 Pt: 0.107 Wt: 0.106 U: 1.00817 13.8333 KHz 72.2894 us
[] pctran 3
Count: 62,379 Pt: 0.111 Wt: 0.111 U: 0.996331 560.317 KHz 1.7847 us
[] pctran 4
Count: 2,103,487 Pt: 0.541 Wt: 0.545 U: 0.99265 3.88802 MHz 257.2 ns
[] pctran 5
Count: 89,941,194 Pt: 8.160 Wt: 8.312 U: 0.981652 11.022 MHz 90.7277 ns