Syzygy endgame tablebases

Black is losing with DTZ 50

KRBvKB.pgn lichess.org

Histogram: KRB winning vs. KB (log scale)

Longest KRBvKB phases

KRBvKB statistics (unique positions)

White wins:
131,121,709 (81.9%)
Draws:
29,003,615 (18.1%)
Black wins:
2,420 (0.0%)
KRBvKB.json (?)