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Syzygy endgame tablebases

Black is losing with DTZ 114

Nb3+ Loss with DTZ 113 Bxh5 Zeroing

Kc4 Loss with DTZ 7 Kd3 Loss with DTZ 5 Nc2 Loss with DTZ 3 Kb3 Loss with DTZ 3 Kb4 Loss with DTZ 3 Ba2 Loss with DTZ 3 Bb3 Loss with DTZ 3 Bc4 Loss with DTZ 3 Be6 Loss with DTZ 3 Be8 Loss with DTZ 3 Bg6 Loss with DTZ 3 Bg8 Loss with DTZ 3 Bd5 Loss with DTZ 1

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KRRBvKBN.pgn lichess.org

Histogram: KRRB winning vs. KBN (log scale)

⋮

Longest KRRBvKBN phases

KRRBvKBN statistics

447,725,351,372 (93.3%)

12,551,443,230 (2.6%)

19,802,060,698 (4.1%)

37,488,578 (0.0%)

KRRBvKBN.json (?)