Syzygy endgame tablebases

Black is losing with DTZ 4

Ra4 Loss with DTZ 3 Rb4+ Loss with DTZ 3 Re4 Loss with DTZ 3 Rf4 Loss with DTZ 3 Rg4 Loss with DTZ 3 Ka8 Loss with DTZ 1 Kb7 Loss with DTZ 1 Kb8 Loss with DTZ 1 Rc4 Loss with DTZ 1 Rd4 Loss with DTZ 1 Rh1 Loss with DTZ 1 Rh2 Loss with DTZ 1 Rh3 Loss with DTZ 1 Rh5 Loss with DTZ 1 Rxh6 Zeroing

KRRRBvKR.pgn lichess.org

Histogram: KRRRB winning vs. KR (log scale)

⋮

Longest KRRRBvKR phases

KRRRBvKR statistics (unique positions)

White wins:
437,508,060,186 (99.8%)

Frustrated white wins:
33,522 (0.0%)

Draws:
638,156,682 (0.1%)

Black wins:
267,261,108 (0.1%)

KRRRBvKR.json (?)