Syzygy endgame tablebases

Black is losing with DTZ 101

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


Histogram: KRRRP winning vs. KB (log scale)

Longest KRRRPvKB phases

KRRRPvKB statistics (unique positions)

White wins:
1,436,901,243,906 (100.0%)
Frustrated white wins:
48 (0.0%)
267,026,178 (0.0%)
Black wins:
4,811,322 (0.0%)
KRRRPvKB.json (?)