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.

KRBPPvKB.pgn lichess.org

Histogram: KRBPP winning vs. KB (log scale)

Longest KRBPPvKB phases

KRBPPvKB statistics (unique positions)

White wins:
1,195,142,954,512 (98.2%)
Frustrated white wins:
240 (0.0%)
Draws:
21,751,676,772 (1.8%)
Black wins:
42,733,776 (0.0%)
KRBPPvKB.json (?)