Syzygy endgame tablebases

White is winning with DTZ 1

Qb8 Draw Qd2+ Draw Qd3+ Draw Qdf6 Draw Qdf8 Draw Qdg8 Draw Bb8 Draw Bf6 Draw Bg3 Draw Bg7 Draw Bh2 Draw Ke7 Draw Kf5 Draw Qb7 Draw Qf1 Draw Qf3+ Draw Qf5 Draw Qg6 Draw Qg7 Draw Qh5 Draw Qh7 Draw

Qh8 Loss with DTZ 4 Qa5 Loss with DTZ 2 Qb6+ Loss with DTZ 1 Qd5 Loss with DTZ 1 Ba1 Loss with DTZ 1 Bb2 Loss with DTZ 1 Bc3 Loss with DTZ 1 Bh8 Loss with DTZ 1 Kf6 Loss with DTZ 1

KQQBvKQR.pgn lichess.org

Histogram: KQQB winning vs. KQR (log scale)

Longest KQQBvKQR phases

KQQBvKQR statistics (unique positions)

White wins:
225,023,819,639 (68.6%)

Frustrated white wins:
628 (0.0%)

Draws:
76,432,051,889 (23.3%)

Frustrated black wins:
1,068,902 (0.0%)

Black wins:
26,789,935,166 (8.2%)

KQQBvKQR.json (?)

KQQBvKQR dependencies

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

KQRvKQB · KQQBvKR · KQQBvKQ · KQQvKQR

KQQBvKQR.txt KQQBvKQR.dot