Syzygy endgame tablebases

White is losing with DTZ 4

Kc8 Loss with DTZ 3 Ke6 Loss with DTZ 3 Ke7 Loss with DTZ 3 Bd3 Loss with DTZ 1 Bd5 Loss with DTZ 1 Bd4+ Loss with DTZ 1 Kxe8 DTM 29 Zeroing

KBBvKQN.pgn lichess.org

Histogram: KBB losing vs. KQN (log scale)

⋮

Longest KBBvKQN phases

KBBvKQN statistics (unique positions)

White wins:
274,378,574 (3.3%)

Frustrated white wins:
257,929,804 (3.1%)

Draws:
1,012,394,603 (12.2%)

Frustrated black wins:
13,163,560 (0.2%)

Black wins:
6,760,194,795 (81.3%)

KBBvKQN.json (?)

KBBvKQN dependencies

To probe all KQNvKBB positions, these tables and their transitive dependencies are also required:

KBBvKN · KQNvKB · KBBvKQ

KQNvKBB.txt KQNvKBB.dot