Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
Black is losing with DTZ 10
Rc8+
Loss with DTZ 9
Ra1
Loss with DTZ 1
Rb1+
Loss with DTZ 1
Rc2
Loss with DTZ 1
Rc3
Loss with DTZ 1
Rc4
Loss with DTZ 1
Rc5
Loss with DTZ 1
Rc6
Loss with DTZ 1
Rc7
Loss with DTZ 1
Rd1
Loss with DTZ 1
Re1
Loss with DTZ 1
Rxf1
Zeroing
KQQQNvKR.pgn
lichess.org
Histogram: KQQQN winning vs. KR (log scale)
Longest KQQQNvKR phases
KQQQN winning with DTZ 46
KQQQN losing with DTZ 3
KQQQNvKR statistics (unique positions)
White wins:
378,314,572,242 (99.9%)
Draws:
213,049,890 (0.1%)
Black wins:
75,811,488 (0.0%)
KQQQNvKR.json
(?)