Syzygy endgame tablebases

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 lichess.org

Histogram: KBPP losing vs. KQB (log scale)

Longest KBPPvKQB phases

KBPPvKQB statistics (unique positions)

White wins:
93,642,228,428 (8.4%)

Frustrated white wins:
4,033,562 (0.0%)

Draws:
129,755,068,570 (11.6%)

Frustrated black wins:
126,438 (0.0%)

Black wins:
897,326,054,194 (80.1%)

KBPPvKQB.json (?)

KBPPvKQB dependencies

To probe all KBPPvKQB positions, these tables and their transitive dependencies are also required:

KQBPvKQB · KBPPvKB · KRBPvKQB · KBBPvKQB · KQBvKPP · KBPPvKQ · KBNPvKQB · KQBvKBP

KBPPvKQB.txt KBPPvKQB.dot