Syzygy endgame tablebases

Black is losing with DTZ 257

Kg6 Loss with DTZ 256 Ke6 Loss with DTZ 112

Ke7 Loss with DTZ 99 Kf8 Loss with DTZ 95 Ke8 Loss with DTZ 93

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

KBBNvKBN.pgn lichess.org

Histogram: KBBN winning vs. KBN (log scale)

Longest KBBNvKBN phases

KBBNvKBN statistics (unique positions)

White wins:
167,723,087,396 (31.8%)

Frustrated white wins:
38,448,763,318 (7.3%)

Draws:
321,018,125,590 (60.9%)

Frustrated black wins:
92,134 (0.0%)

Black wins:
107,435,338 (0.0%)

KBBNvKBN.json (?)