Syzygy endgame tablebases

Black is losing with DTZ 4

KRRBNvK.pgn lichess.org

Histogram: KRRBN winning vs. K (log scale)

Longest KRRBNvK phases

KRRBNvK statistics

9,065,097,176 (99.3%)
67,126,398 (0.7%)
KRRBNvK.json (?)