Syzygy endgame tablebases

White is losing with DTZ 128

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

KRRPvKQQ.pgn lichess.org

Histogram: KRRP losing vs. KQQ (log scale)

Longest KRRPvKQQ phases

KRRPvKQQ statistics (unique positions)

White wins:
68,800,146,192 (6.0%)
Frustrated white wins:
1,290,207,124 (0.1%)
Draws:
183,524,604,908 (16.1%)
Frustrated black wins:
114,736,060 (0.0%)
Black wins:
887,530,372,656 (77.8%)
KRRPvKQQ.json (?)