Syzygy endgame tablebases

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

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 (?)