Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
Black is losing with DTZ 121
Kg4
Loss with DTZ 120
Kg3
Loss with DTZ 2
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRRRvKQQ.pgn
Histogram: KRRR winning vs. KQQ (log scale)
⋮
Longest KRRRvKQQ phases
KRRR winning with DTZ 58
KRRR winning with DTZ 122 (frustrated)
KRRR losing with DTZ 79
KRRRvKQQ statistics
85,645,647,498 (25.6%)
1,218,180 (0.0%)
81,878,027,868 (24.4%)
167,494,625,502 (50.0%)
KRRRvKQQ.json
(?)
