Syzygy endgame tablebases

Black is winning with DTZ 1

Qxc7 Zeroing Qa8+ Win with DTZ 2 Qb7+ Win with DTZ 2 Qg4+ Win with DTZ 2 Qb3 Win with DTZ 4 Qb5 Win with DTZ 4 Qb6 Win with DTZ 4 Qf8 Win with DTZ 4 Qg8 Win with DTZ 4 Qb4 Win with DTZ 6 Qc8 Win with DTZ 6 Qbe8 Win with DTZ 6 Qbh8 Win with DTZ 6 Qa7 Win with DTZ 8 Qb2 Win with DTZ 8

Qxd1 Draw Qb1 Draw Kf5 Draw Qhe8 Draw Qf3+ Draw Qh1+ Draw Qh2+ Draw Qh3+ Draw Qhh8 Draw

Qe2 Loss with DTZ 4 Kf6 Loss with DTZ 2 Kg6 Loss with DTZ 2 Kh6 Loss with DTZ 2 Qd8 Loss with DTZ 1 Kf4 Loss with DTZ 1 Kg4 Loss with DTZ 1 Kh4 Loss with DTZ 1 Qf7 Loss with DTZ 1 Qg6 Loss with DTZ 1 Qh4 Loss with DTZ 1 Qh6 Loss with DTZ 1 Qh7 Loss with DTZ 1

KRPPvKQQ.pgn lichess.org

Histogram: KRPP losing vs. KQQ (log scale)

⋮

Longest KRPPvKQQ phases

KRPPvKQQ statistics (unique positions)

White wins:
15,834,088,528 (1.6%)

Frustrated white wins:
2,275,288 (0.0%)

Draws:
45,965,829,780 (4.8%)

Frustrated black wins:
53,586,288 (0.0%)

Black wins:
901,457,548,696 (93.6%)

KRPPvKQQ.json (?)

KRPPvKQQ dependencies

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

KQRPvKQQ · KRPPvKQ · KRRPvKQQ · KQQvKPP · KRBPvKQQ · KRNPvKQQ · KQQvKRP

KRPPvKQQ.txt KRPPvKQQ.dot