Syzygy endgame tablebases

Black is losing with DTZ 2

Kb1 Loss with DTZ 1 Ra1 Loss with DTZ 1 Rb1 Loss with DTZ 1 Rc2 Loss with DTZ 1 Rc3 Loss with DTZ 1 Rc4 Loss with DTZ 1 Rc5 Loss with DTZ 1 Rc6 Loss with DTZ 1 Rc7 Loss with DTZ 1 Rc8+ Loss with DTZ 1 Rd1 Loss with DTZ 1 Re1 Loss with DTZ 1 Rf1 Loss with DTZ 1 Rxg1 Zeroing Kxb2 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 (?)