Syzygy endgame tablebases

Black is losing with DTZ 122

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


Histogram: KQBP winning vs. KRB (log scale)

Longest KQBPvKRB phases

KQBPvKRB statistics (unique positions)

White wins:
1,092,962,417,370 (80.5%)
Frustrated white wins:
25,421,454 (0.0%)
115,503,043,582 (8.5%)
Frustrated black wins:
4,410,887 (0.0%)
Black wins:
149,124,395,201 (11.0%)
KQBPvKRB.json (?)