Syzygy endgame tablebases
White to move
Black to move
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Black is winning with DTZ 143
Qe2+
Win with DTZ 142
Qc4
Draw
Qe1+
Draw
Qf5
Draw
Qc1
Loss with DTZ 2
Qh3
Loss with DTZ 2
Na5
Loss with DTZ 1
Nc5
Loss with DTZ 1
Nd6+
Loss with DTZ 1
Nd8
Loss with DTZ 1
Qa1
Loss with DTZ 1
Qa6
Loss with DTZ 1
Qb1
Loss with DTZ 1
Qb5+
Loss with DTZ 1
Qd1
Loss with DTZ 1
Qd3
Loss with DTZ 1
Qf2
Loss with DTZ 1
Qf3
Loss with DTZ 1
Qf4
Loss with DTZ 1
Qf6
Loss with DTZ 1
Qf7+
Loss with DTZ 1
Qf8+
Loss with DTZ 1
Qg1
Loss with DTZ 1
Qg2
Loss with DTZ 1
Qh1
Loss with DTZ 1
Kf2
Loss with DTZ 1
Kf3
Loss with DTZ 1
Kf4
Loss with DTZ 1
Kg2
Loss with DTZ 1
Kg4
Loss with DTZ 1
Kh2
Loss with DTZ 1
Kh3
Loss with DTZ 1
Kh4
Loss with DTZ 1
This is a cursed win.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRPPvKQN.pgn
lichess.org
Histogram: KRPP losing vs. KQN (log scale)
Longest KRPPvKQN phases
KRPP winning with DTZ 59
KRPP winning with DTZ 119 (frustrated)
KRPP losing with DTZ 144 (frustrated)
KRPP losing with DTZ 100
KRPPvKQN statistics (unique positions)
White wins:
219,736,583,128 (20.0%)
Frustrated white wins:
3,132,610 (0.0%)
Draws:
88,295,188,998 (8.0%)
Frustrated black wins:
25,451,466 (0.0%)
Black wins:
791,090,050,218 (72.0%)
KRPPvKQN.json
(?)