Syzygy endgame tablebases

White is winning with DTZ 1

Qaxb2 Zeroing Qcxb2 Zeroing Bxb2 Zeroing Qa2+ Win with DTZ 2 Qa6+ Win with DTZ 2 Qe2+ Win with DTZ 2 Qe4+ Win with DTZ 2 Qf5+ Win with DTZ 2 Qg6+ Win with DTZ 2 Qa7 Win with DTZ 4 Qcb1 Win with DTZ 6 Qaa4 Win with DTZ 8 Qa5 Win with DTZ 8 Qa8 Win with DTZ 8 Qca4 Win with DTZ 8 Qab1 Win with DTZ 10 Qac1 Win with DTZ 20

Qa3 Draw Qcc1 Draw Qd2 Draw Qf2 Draw Qg2 Draw Qh2 Draw Be1 Draw Bg7 Draw Bh8 Draw Kd2 Draw Ke1 Draw

Be5 Loss with DTZ 4 Bf6 Loss with DTZ 4 Qd3 Loss with DTZ 2 Qh7 Loss with DTZ 2 Qb3+ Loss with DTZ 1 Ba5 Loss with DTZ 1 Bb4 Loss with DTZ 1 Bd2 Loss with DTZ 1 Bd4 Loss with DTZ 1 Ke2 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