Syzygy endgame tablebases
White to move
Black to move
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Black is losing with DTZ 118
Rb1+
Loss with DTZ 117
Ka2
Loss with DTZ 7
Rb3
Loss with DTZ 5
Ra2
Loss with DTZ 3
Re2
Loss with DTZ 3
Rb4
Loss with DTZ 1
Rb5
Loss with DTZ 1
Rb6
Loss with DTZ 1
Rb7
Loss with DTZ 1
Rb8
Loss with DTZ 1
Rc2+
Loss with DTZ 1
Rd2
Loss with DTZ 1
Rf2
Loss with DTZ 1
Rg2
Loss with DTZ 1
Rh2
Loss with DTZ 1
c3
Zeroing
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KQBvKRP.pgn
Histogram: KQB winning vs. KRP (log scale)
⋮
Longest KQBvKRP phases
KQB winning with DTZ 77
KQB winning with DTZ 119 (frustrated)
KQB losing with DTZ 105 (frustrated)
KQB losing with DTZ 11
KQBvKRP statistics
19,667,644,569 (79.2%)
413,953 (0.0%)
2,252,349,565 (9.1%)
9,831 (0.0%)
2,907,686,432 (11.7%)
KQBvKRP.json
(?)