QQB is a general win, with extinction royalty, in maximally 4 moves:Uri Blass wrote:I wonder if there are places to find tablebases for games based on the rules of chess but different target.
For example if the target is to capture all the pieces of the opponent.
[D]8/8/8/4b3/8/8/8/Q1Q5 b - - 0 1
Here white should win and I expect tablebases to tell me how many moves to win.
You can play also when the target is only to capture one piece of the opponent so white need to capture the bishop without losing the queen so it is possible to have also these types of tablebases.
In the diagram of course black win in this case by BxQ
Code: Select all
mated mate
King captures 148656
mates 3776 ( 0.01 sec)
in-1 11420 18192 ( 0.03 sec) 89302
in-2 66538 41164 ( 0.07 sec) 273750
in-3 114898 39206 ( 0.10 sec) 134818
in-4 9960 2766 ( 0.12 sec) 9960
in-5 0 0 ( 0.13 sec) 0
won: 249984 (100.0%)
lost: 206592 ( 82.6%)
avg: 2.6 moves
Code: Select all
mated mate
King captures 148656
mates 1600 ( 0.01 sec)
in-1 4955 12936 ( 0.02 sec) 46095
in-2 32512 28224 ( 0.05 sec) 212576
in-3 121557 50310 ( 0.09 sec) 190261
in-4 34352 9858 ( 0.11 sec) 34352
in-5 0 0 ( 0.12 sec) 0
won: 249984 (100.0%)
lost: 194976 ( 78.0%)
avg: 2.9 moves
Code: Select all
mated mate
King captures 74816
mates 216 ( 0.00 sec)
in-1 616 1512 ( 0.01 sec) 1048
in-2 1908 4636 ( 0.01 sec) 2372
in-3 592 3784 ( 0.01 sec) 1552
in-4 1400 1824 ( 0.01 sec) 5640
in-5 3048 4216 ( 0.01 sec) 7816
in-6 3744 7396 ( 0.01 sec) 7648
in-7 3548 8500 ( 0.02 sec) 10500
in-8 8180 13128 ( 0.02 sec) 19532
in-9 9464 17596 ( 0.03 sec) 22024
in-10 11916 16984 ( 0.04 sec) 33196
in-11 14984 17888 ( 0.04 sec) 30728
in-12 17808 18192 ( 0.05 sec) 48224
in-13 20524 14748 ( 0.06 sec) 43436
in-14 27668 15908 ( 0.07 sec) 75396
in-15 29336 13480 ( 0.08 sec) 71928
in-16 29752 10464 ( 0.09 sec) 57696
in-17 14360 4528 ( 0.09 sec) 15984
in-18 1312 384 ( 0.10 sec) 1312
in-19 0 0 ( 0.10 sec) 0
won: 249984 (100.0%)
lost: 200376 ( 80.2%)
avg: 12.8 moves