Syzygy endgame tablebases
White to move
Black to move
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Black is losing with DTZ 386
Qa8+
Loss with DTZ 385
Qb8
Loss with DTZ 17
Qc3
Loss with DTZ 3
Qc8
Loss with DTZ 3
Qd4
Loss with DTZ 3
Qe8
Loss with DTZ 3
Kh6
Loss with DTZ 2
Qa1+
Loss with DTZ 1
Qb2+
Loss with DTZ 1
Qd8
Loss with DTZ 1
Qe5
Loss with DTZ 1
Qf6
Loss with DTZ 1
Qf8
Loss with DTZ 1
Qg7
Loss with DTZ 1
Qg8+
Loss with DTZ 1
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRRPvKQ.pgn
lichess.org
Histogram: KRRP winning vs. KQ (log scale)
Longest KRRPvKQ phases
KRRP winning with DTZ 100
KRRP winning with DTZ 387 (frustrated)
KRRP losing with DTZ 129 (frustrated)
KRRP losing with DTZ 56
KRRPvKQ statistics (unique positions)
White wins:
10,433,097,822 (44.5%)
Frustrated white wins:
98,792,926 (0.4%)
Draws:
7,868,899,184 (33.5%)
Frustrated black wins:
3,067,660 (0.0%)
Black wins:
5,058,962,980 (21.6%)
KRRPvKQ.json
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