Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
Black is losing with DTZ 110
Rg8+
Loss with DTZ 109
Ra4
Loss with DTZ 7
Kb4
Loss with DTZ 7
Ra7
Loss with DTZ 5
Rb8
Loss with DTZ 5
Rd8
Loss with DTZ 5
Re8
Loss with DTZ 5
Rh8
Loss with DTZ 5
Ra2
Loss with DTZ 3
Ra6
Loss with DTZ 3
Rc8
Loss with DTZ 3
Ka2
Loss with DTZ 3
Ka4
Loss with DTZ 3
Kc2
Loss with DTZ 3
Kc3
Loss with DTZ 3
Ra1
Loss with DTZ 1
Ra3
Loss with DTZ 1
Ra5
Loss with DTZ 1
Rf8
Loss with DTZ 1
bxc4
DTM 29
Zeroing
b4
Zeroing
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KQNvKRP.pgn
lichess.org
Histogram: KQN winning vs. KRP (log scale)
⋮
Longest KQNvKRP phases
KQN winning with DTZ 83
KQN winning with DTZ 111 (frustrated)
KQN losing with DTZ 105 (frustrated)
KQN losing with DTZ 15
KQNvKRP statistics (unique positions)
White wins:
19,804,140,918 (77.7%)
Frustrated white wins:
413,303 (0.0%)
Draws:
2,194,419,185 (8.6%)
Frustrated black wins:
9,703 (0.0%)
Black wins:
3,480,221,659 (13.7%)
KQNvKRP.json
(?)