Syzygy endgame tablebases

White is winning with DTZ 197

Qf6+ Win with DTZ 196 Qh6+ Win with DTZ 196

b6 Draw b8=B Draw b8=N Draw b8=Q Draw b8=R Draw Qa1 Draw Qa2 Draw Qa3+ Draw Qa4 Draw Qa5 Draw Qa7 Draw Qa8 Draw Qb6 Draw Qe6 Draw Kd4 Draw Kd5 Draw Kf5 Draw

Qc6 Loss with DTZ 1 Qd6+ Loss with DTZ 1 Qg6 Loss with DTZ 1

This is a cursed win. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KQPPvKQB.pgn lichess.org

Histogram: KQPP winning vs. KQB (log scale)

Longest KQPPvKQB phases

KQPPvKQB statistics (unique positions)

White wins:
312,543,987,268 (31.9%)

Frustrated white wins:
23,936,784 (0.0%)

Draws:
430,740,576,016 (43.9%)

Frustrated black wins:
20,714 (0.0%)

Black wins:
237,193,500,550 (24.2%)

KQPPvKQB.json (?)

KQPPvKQB dependencies

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

KQQPvKQB · KQBvKPP · KQPPvKB · KQRPvKQB · KQBPvKQB · KQPPvKQ · KQNPvKQB · KQBvKQP

KQPPvKQB.txt KQPPvKQB.dot