Syzygy endgame tablebases

White is losing with DTZ 20

KBvKQ.pgn lichess.org

Histogram: KB losing vs. KQ (log scale)

Longest KBvKQ phases

KBvKQ statistics (unique positions)

Draws:
345,481 (13.3%)
Black wins:
2,252,933 (86.7%)
KBvKQ.json (?)