Syzygy endgame tablebases
White to move
Black to move
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Tablebase draw
Qxf1
Draw
Qa5+
Loss with DTZ 15
Qb4+
Loss with DTZ 12
Qg5+
Loss with DTZ 11
Qb2+
Loss with DTZ 7
Qb3
Loss with DTZ 3
Qe5
Loss with DTZ 3
Qa4
Loss with DTZ 1
Qa6
Loss with DTZ 1
Qb1
Loss with DTZ 1
Qc4
Loss with DTZ 1
Qc5
Loss with DTZ 1
Qd3+
Loss with DTZ 1
Qd5+
Loss with DTZ 1
Qe2+
Loss with DTZ 1
Qf5
Loss with DTZ 1
Qh5
Loss with DTZ 1
Ra6
Loss with DTZ 1
Rb7
Loss with DTZ 1
Rb8
Loss with DTZ 1
Kc5
Loss with DTZ 1
Ke5
Loss with DTZ 1
Ke6
Loss with DTZ 1
Qxc6
Zeroing
Rxc6
Zeroing
Kxc6
Zeroing
KQQBvKQR.pgn
lichess.org
Histogram: KQQB winning vs. KQR (log scale)
Longest KQQBvKQR phases
KQQB winning with DTZ 100
KQQB winning with DTZ 111 (frustrated)
KQQB losing with DTZ 123 (frustrated)
KQQB losing with DTZ 93
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
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