Syzygy endgame tablebases

Black is losing with DTZ 22

KRRRvKBN.pgn lichess.org

Histogram: KRRR winning vs. KBN (log scale)

Longest KRRRvKBN phases

KRRRvKBN statistics (unique positions)

White wins:
454,058,937,258 (99.2%)
Draws:
3,481,905,876 (0.8%)
Black wins:
23,077,746 (0.0%)
KRRRvKBN.json (?)