One perft(7) mismatch for work unit 566

[sje]

One perft(7) mismatch for work unit 566

Very close!

Code: Select all

85465c85465
< rnbqkbnr/pp2pp1p/3p4/2p3BQ/3PP3/8/PPP2PPP/RN2KBNR b KQkq - 0 4 28 53830194040 1507245433120
---
> rnbqkbnr/pp2pp1p/3p4/2p3BQ/3PP3/8/PPP2PPP/RN2KBNR b KQkq - 0 4 28 53830194113 1507245435164

[elcabesa]

Vajolet think this is the correct number:
53830194113

[brianr]

as does this excellent perft program

https://github.com/ankan-ban/perft_cpu

Code: Select all

C:\Downloads\perft_cpu-master\perft_cpu-master\binaries>perft_64bit_plain_no_popcnt.exe

Enter FEN String:
rnbqkbnr/pp2pp1p/3p4/2p3BQ/3PP3/8/PPP2PPP/RN2KBNR b KQkq - 0 4 28 53830194113 1507245435164

Board Position:
rnbqkbnr
pp..pp.p
...p....
..p...BQ
...PP...
........
PPP..PPP
RN..KBNR

Game State:
Black to move
Allowed Castlings:
White King Side castle
White Queen Side castle
Black King Side castle
Black Queen Side castle

Perft 1: 27,   Time taken: 2.1333e-005 seconds, nps: 1265646

Perft 2: 1214,   Time taken: 4.60792e-005 seconds, nps: 26345924

Perft 3: 33109,   Time taken: 0.000312741 seconds, nps: 105866998

Perft 4: 1466559,   Time taken: 0.00654581 seconds, nps: 224045421

Perft 5: 41799329,   Time taken: 0.312623 seconds, nps: 133705290

Perft 6: 1814892484,   Time taken: 8.45001 seconds, nps: 214779883

Perft 7: 53830194113,   Time taken: 388.409 seconds, nps: 138591456
^C
C:\Downloads\perft_cpu-master\perft_cpu-master\binaries>

[pkumar]

Same result:

nameless> perft 7

(CR to end input) epdfile=perftSE24.epd

rnbqkbnr/pp2pp1p/3p4/2p3BQ/3PP3/8/PPP2PPP/RN2KBNR b KQkq - 0 4 28 53830194113
perft D7: 53830194113

[sje]

Thanks to everyone for their verification work. The 128 bit signature program output is again replicated.

----

Symbolic has produced more than 56,000,000 perft(7) results so far, about 58.09% of the 96,400,068 needed.

Work unit #573 is the next to be started.