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: KQRRN winning vs. KQ (log scale)

Longest KQRRNvKQ phases

KQRRNvKQ statistics (unique positions)

White wins:
364,968,325,455 (96.9%)
Frustrated white wins:
7,908,956 (0.0%)
10,411,665,901 (2.8%)
Black wins:
1,299,826,278 (0.3%)
KQRRNvKQ.json (?)