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Syzygy endgame tablebases

Black is losing with DTZ 114

Bf5+ Loss with DTZ 113

Kb4 Loss with DTZ 3 Kd3 Loss with DTZ 3 Nd3 Loss with DTZ 3 Nf3 Loss with DTZ 3 Ng2 Loss with DTZ 3 Bc8 Loss with DTZ 3 Bd7 Loss with DTZ 3 Bf1 Loss with DTZ 3 Bg2 Loss with DTZ 3 Bg4 Loss with DTZ 3 Nc2 Loss with DTZ 1 Be6 Loss with DTZ 1

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

Histogram: KQBB winning vs. KBN (log scale)

⋮

Longest KQBBvKBN phases

KQBBvKBN statistics

398,040,552,835 (86.2%)

3,807,489,532 (0.8%)

59,936,471,611 (13.0%)

40,573,148 (0.0%)

KQBBvKBN.json (?)