Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
White is losing with DTZ 124
Bg2
Loss with DTZ 123
Bd3
Loss with DTZ 3
Kb3
Loss with DTZ 1
Kb4
Loss with DTZ 1
Kc3
Loss with DTZ 1
Kc5
Loss with DTZ 1
Kd3
Loss with DTZ 1
Kd4
Loss with DTZ 1
Be2
Loss with DTZ 1
Bh3
Loss with DTZ 1
h8=B
Zeroing
h8=N
Zeroing
h8=Q+
Zeroing
h8=R+
Zeroing
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KBPPvKQB.pgn
Histogram: KBPP losing vs. KQB (log scale)
Longest KBPPvKQB phases
KBPP winning with DTZ 21
KBPP winning with DTZ 109 (frustrated)
KBPP losing with DTZ 124 (frustrated)
KBPP losing with DTZ 100
KBPPvKQB statistics
93,642,228,428 (8.4%)
4,033,562 (0.0%)
129,755,068,570 (11.6%)
126,438 (0.0%)
897,326,054,194 (80.1%)
KBPPvKQB.json
(?)