Syzygy endgame tablebases

Black is losing with DTZ 4

KRRBvK.pgn lichess.org

Histogram: KRRB winning vs. K (log scale)

Longest KRRBvK phases

KRRBvK statistics

157,297,469 (99.5%)
794,640 (0.5%)
KRRBvK.json (?)