Syzygy endgame tablebases

Black is losing with DTZ 386

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


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%)
7,868,899,184 (33.5%)
Frustrated black wins:
3,067,660 (0.0%)
Black wins:
5,058,962,980 (21.6%)
KRRPvKQ.json (?)