Syzygy endgame tablebases

White is winning with DTZ 13

Rad1+ Win with DTZ 12 Bf6+ Win with DTZ 12 Rfd1+ Win with DTZ 16 Nc3 Win with DTZ 30 Rab1 Win with DTZ 31 Rfb1 Win with DTZ 54 Rf6 Win with DTZ 54

Rac1 Draw Rae1 Draw Nb4 Draw Nc1 Draw Ka8 Draw Kb7 Draw Rfc1 Draw Rfe1 Draw Rf2 Draw Rf3 Draw Rf4 Draw Rf5 Draw Rf7 Draw Rf8+ Draw Rg1 Draw Rh1 Draw Bb2 Draw Bc3 Draw Bd4 Draw Be5 Draw Bg7 Draw

KRRBNvKQ.pgn lichess.org

Histogram: KRRBN winning vs. KQ (log scale)

Longest KRRBNvKQ phases

KRRBNvKQ statistics (unique positions)

White wins:
334,411,661,737 (79.2%)

Frustrated white wins:
58,336,799 (0.0%)

Draws:
81,928,183,430 (19.4%)

Black wins:
5,795,099,484 (1.4%)

KRRBNvKQ.json (?)