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.

KRBPvKB.pgn lichess.org

Histogram: KRBP winning vs. KB (log scale)

⋮

Longest KRBPvKB phases

KRBPvKB statistics

26,248,658,179 (93.0%)
372 (0.0%)
1,989,348,254 (7.0%)
716,719 (0.0%)
KRBPvKB.json (?)