Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
White is winning with DTZ 1
Qxc2
DTM 6
Zeroing
Qc6+
Win with DTZ 2
Qe2+
Win with DTZ 2
Be2+
Win with DTZ 2
Qb7+
Win with DTZ 4
Be1
Win with DTZ 4
Qb4
Win with DTZ 5
Qa8+
Win with DTZ 6
Qd5
Win with DTZ 6
Qe5
Win with DTZ 6
Qe6+
Win with DTZ 6
Bc7
Win with DTZ 6
Bd6
Win with DTZ 6
Be5
Win with DTZ 6
Bf4
Win with DTZ 6
Qd4
Win with DTZ 7
Kd7
Win with DTZ 8
Ke7
Win with DTZ 8
Ke8
Win with DTZ 8
Qe3
Win with DTZ 8
Qe7
Win with DTZ 8
Qe8
Win with DTZ 8
Qf4
Win with DTZ 8
Bg2
Win with DTZ 8
Bh1
Win with DTZ 8
Bb8
Win with DTZ 8
Bh4
Win with DTZ 8
Qg4
Win with DTZ 12
Qh4
Win with DTZ 17
Qe1
Draw
Bf2
Draw
Bh2
Draw
Qa4+
Loss with DTZ 1
Qc4+
Loss with DTZ 1
Qd3+
Loss with DTZ 1
Qf5
Loss with DTZ 1
Qg6+
Loss with DTZ 1
Qh7
Loss with DTZ 1
Bd1
Loss with DTZ 1
Bg4
Loss with DTZ 1
Bh5
Loss with DTZ 1
KQBBvKQ.pgn
lichess.org
Histogram: KQBB winning vs. KQ (log scale)
Longest KQBBvKQ phases
KQBB winning with DTZ 100
KQBB winning with DTZ 186 (frustrated)
KQBB losing with DTZ 113 (frustrated)
KQBB losing with DTZ 31
KQBBvKQ statistics (unique positions)
White wins:
4,820,374,547 (67.8%)
Frustrated white wins:
1,448,774 (0.0%)
Draws:
1,393,393,258 (19.6%)
Frustrated black wins:
76,776,090 (1.1%)
Black wins:
821,158,283 (11.5%)
KQBBvKQ.json
(?)