Syzygy endgame tablebases

White is losing DTZ 389

B1c3 Loss with DTZ 388 B5c3 Loss with DTZ 186

Bb2 Loss with DTZ 1 Bd4 Loss with DTZ 1 Be5 Loss with DTZ 1 Bf6 Loss with DTZ 1 Bg7 Loss with DTZ 1 Bh8 Loss with DTZ 1 Bb4 Loss with DTZ 1 Bb6 Loss with DTZ 1 Bc7 Loss with DTZ 1 Bd2 Loss with DTZ 1 Bd8 Loss with DTZ 1 Be1 Loss with DTZ 1 Kf7 Loss with DTZ 1 Kf8 Loss with DTZ 1 Kg7 Loss with DTZ 1 a4 Zeroing

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

KBBPvKRN.pgn lichess.org

Histogram: KBBP losing vs. KRN (log scale)

Longest KBBPvKRN phases

KBBPvKRN statistics (unique positions)

White wins:
345,303,385,910 (22.1%)

Frustrated white wins:
21,131,729,010 (1.4%)

Draws:
783,340,728,982 (50.2%)

Frustrated black wins:
114,121,007,924 (7.3%)

Black wins:
297,067,498,618 (19.0%)

KBBPvKRN.json (?)

KBBPvKRN dependencies

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

KQBBvKRN · KRBBvKRN · KBBPvKN · KBBBvKRN · KRNvKBP · KBBNvKRN · KBBPvKR · KRNvKBB

KBBPvKRN.txt KBBPvKRN.dot