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.

KRRPPvKB.pgn lichess.org

Histogram: KRRPP winning vs. KB (log scale)

Longest KRRPPvKB phases

KRRPPvKB statistics (unique positions)

White wins:
1,168,509,565,784 (100.0%)
Frustrated white wins:
516 (0.0%)
Draws:
490,697,292 (0.0%)
Black wins:
13,551,096 (0.0%)
KRRPPvKB.json (?)