Syzygy endgame tablebases

White is winning with DTZ 1

Bxa4 Zeroing Qxc4 Zeroing Qe5+ Win with DTZ 2 Qe7+ Win with DTZ 2 Qeh7+ Win with DTZ 2 Qh2+ Win with DTZ 2 Qhh7+ Win with DTZ 2 Qhb1 Win with DTZ 8 Qc2 Win with DTZ 10 Bd5 Win with DTZ 16

Qef3 Loss with DTZ 10 Qeg2 Loss with DTZ 10 Qg6 Loss with DTZ 10 Qe8 Loss with DTZ 4 Qe2 Loss with DTZ 2 Qe6 Loss with DTZ 2 Qg4 Loss with DTZ 2 Qd4 Loss with DTZ 1 Qf4+ 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