Syzygy endgame tablebases

White is winning with DTZ 3

KRRRvKB.pgn lichess.org

Histogram: KRRR winning vs. KB (log scale)

Longest KRRRvKB phases

KRRRvKB statistics (unique positions)

White wins:
8,208,369,168 (99.9%)
Draws:
8,081,526 (0.1%)
KRRRvKB.json (?)