Syzygy endgame tablebases

White is losing with DTZ 172

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


Histogram: KRRB losing vs. KQN (log scale)

Longest KRRBvKQN phases

KRRBvKQN statistics (unique positions)

White wins:
176,798,613,363 (42.2%)
Frustrated white wins:
11,942,040 (0.0%)
124,646,083,344 (29.8%)
Frustrated black wins:
3,022,472,349 (0.7%)
Black wins:
114,341,519,366 (27.3%)
KRRBvKQN.json (?)