Syzygy endgame tablebases

Black is losing with DTZ 6

KQBBvKR.pgn lichess.org

Histogram: KQBB winning vs. KR (log scale)

Longest KQBBvKR phases

KQBBvKR statistics (unique positions)

White wins:
6,942,204,698 (88.0%)
Draws:
938,466,778 (11.9%)
Black wins:
5,828,272 (0.1%)
KQBBvKR.json (?)