Syzygy endgame tablebases
White to move
Black to move
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White is winning with DTZ 1
Bxe4
Zeroing
Qxe4
Zeroing
Qd6+
Win with DTZ 4
Be2+
Draw
Qf7
Loss with DTZ 5
Qf8
Loss with DTZ 5
Qc5
Loss with DTZ 3
Qc7
Loss with DTZ 3
Kc7
Loss with DTZ 1
Kc8
Loss with DTZ 1
Kd7
Loss with DTZ 1
Ke8
Loss with DTZ 1
Qa3+
Loss with DTZ 1
Qa7+
Loss with DTZ 1
Qb4
Loss with DTZ 1
Qb7+
Loss with DTZ 1
Qd7
Loss with DTZ 1
Qe5
Loss with DTZ 1
Qe6+
Loss with DTZ 1
Qe8
Loss with DTZ 1
Qf6+
Loss with DTZ 1
Qg5
Loss with DTZ 1
Qg7
Loss with DTZ 1
Qh4
Loss with DTZ 1
Qh7
Loss with DTZ 1
Bd1
Loss with DTZ 1
Bg2
Loss with DTZ 1
Bg4
Loss with DTZ 1
Bh1
Loss with DTZ 1
Bh5
Loss with DTZ 1
Bb8
Loss with DTZ 1
Bc7
Loss with DTZ 1
Bd6
Loss with DTZ 1
Be1
Loss with DTZ 1
Be5
Loss with DTZ 1
Bf2
Loss with DTZ 1
Bf4
Loss with DTZ 1
Bh2
Loss with DTZ 1
Bh4
Loss with DTZ 1
KQBBvKQQ.pgn
lichess.org
Histogram: KQBB winning vs. KQQ (log scale)
Longest KQBBvKQQ phases
KQBB winning with DTZ 100
KQBB winning with DTZ 144 (frustrated)
KQBB losing with DTZ 249 (frustrated)
KQBB losing with DTZ 100
KQBBvKQQ statistics (unique positions)
White wins:
73,255,125,086 (21.6%)
Frustrated white wins:
47,379,422 (0.0%)
Draws:
66,887,261,032 (19.7%)
Frustrated black wins:
2,955,100,724 (0.9%)
Black wins:
196,135,819,030 (57.8%)
KQBBvKQQ.json
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