Syzygy endgame tablebases

Black is losing with DTZ 8

Kc4 Loss with DTZ 7 Ke2 Loss with DTZ 7 Ke3 Loss with DTZ 7 Ke4 Loss with DTZ 7

KQRRBBvK.pgn lichess.org

Histogram: KQRRBB winning vs. K (log scale)

Longest KQRRBBvK phases

KQRRBB winning with DTZ 9

KQRRBBvK statistics (unique positions)

White wins:
452,365,943,750 (97.6%)

Draws:
11,251,497,102 (2.4%)

KQRRBBvK.json (?)