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Syzygy endgame tablebases

Black is losing with DTZ 168

Qh6+ Loss with DTZ 167

Qf6+ Loss with DTZ 9 Qf8+ Loss with DTZ 9 Qd4+ Loss with DTZ 5 Kh3 Loss with DTZ 1 Kh5 Loss with DTZ 1 Qa1 Loss with DTZ 1 Qa8 Loss with DTZ 1 Qb2 Loss with DTZ 1 Qb8+ Loss with DTZ 1 Qc3 Loss with DTZ 1 Qc8 Loss with DTZ 1 Qd8 Loss with DTZ 1 Qe5+ Loss with DTZ 1 Qe8 Loss with DTZ 1 Qg7 Loss with DTZ 1 Qg8 Loss with DTZ 1 Qh5 Loss with DTZ 1 Qh7 Loss with DTZ 1

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KQRPvKQ.pgn lichess.org

Histogram: KQRP winning vs. KQ (log scale)

Longest KQRPvKQ phases

KQRPvKQ statistics

17,427,813,985 (80.4%)

626,830 (0.0%)

2,060,532,619 (9.5%)

1,306,389 (0.0%)

2,195,780,693 (10.1%)

KQRPvKQ.json (?)