Syzygy endgame tablebases

Black is losing with DTZ 102

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


Histogram: KRRR winning vs. KPP (log scale)

Longest KRRRvKPP phases

KRRRvKPP statistics (unique positions)

White wins:
1,124,592,428,712 (98.8%)
Frustrated white wins:
578,952 (0.0%)
11,993,528,700 (1.1%)
Frustrated black wins:
825,168 (0.0%)
Black wins:
1,949,366,604 (0.2%)
KRRRvKPP.json (?)