Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
Tablebase draw
Rb3+
Draw
Re7+
Draw
Qxg2
Draw
Qb3+
Loss with DTZ 7
Ra7
Loss with DTZ 1
Rb1
Loss with DTZ 1
Rb2
Loss with DTZ 1
Rb4
Loss with DTZ 1
Rb5
Loss with DTZ 1
Rb6
Loss with DTZ 1
Rb8
Loss with DTZ 1
Rc7
Loss with DTZ 1
Rd7
Loss with DTZ 1
Rf7
Loss with DTZ 1
Rg7
Loss with DTZ 1
Rh7
Loss with DTZ 1
Qa2
Loss with DTZ 1
Qa4
Loss with DTZ 1
Qb1
Loss with DTZ 1
Qb2
Loss with DTZ 1
Qc1+
Loss with DTZ 1
Qc3+
Loss with DTZ 1
Qc4
Loss with DTZ 1
Qd1
Loss with DTZ 1
Qd2+
Loss with DTZ 1
Qd3+
Loss with DTZ 1
Qe2+
Loss with DTZ 1
Qe4+
Loss with DTZ 1
Qf2+
Loss with DTZ 1
Qf5
Loss with DTZ 1
Qg6
Loss with DTZ 1
Qh7
Loss with DTZ 1
Kb6
Loss with DTZ 1
Kc4
Loss with DTZ 1
Kd6
Loss with DTZ 1
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
(?)