Syzygy endgame tablebases

Black is losing with DTZ 187

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


Histogram: KRNN winning vs. KRB (log scale)

Longest KRNNvKRB phases

KRNNvKRB statistics (unique positions)

White wins:
148,149,759,530 (30.4%)
Frustrated white wins:
67,656,780,595 (13.9%)
216,928,468,966 (44.5%)
Frustrated black wins:
26,361,463,087 (5.4%)
Black wins:
28,700,380,078 (5.9%)
KRNNvKRB.json (?)