Syzygy endgame tablebases

White is winning with DTZ 1

Ra1+ Win with DTZ 1 Ra3+ Win with DTZ 1 Kb7 Win with DTZ 2 Ka7 Win with DTZ 4 Ka8 Win with DTZ 4 Rb1 Win with DTZ 4 Rc1 Win with DTZ 4 Rde1 Win with DTZ 4 Rf1 Win with DTZ 4 Rg1 Win with DTZ 4 Rh1 Win with DTZ 4 Rc8 Win with DTZ 4 Rd8d3 Win with DTZ 4 R8d4 Win with DTZ 4 R8d5 Win with DTZ 4 R8d6 Win with DTZ 4 R8d7 Win with DTZ 4 Rde8 Win with DTZ 4 Rf8 Win with DTZ 4 Rg8 Win with DTZ 4 Rh8 Win with DTZ 4 Rb3 Win with DTZ 4 Rc3 Win with DTZ 4 Red3 Win with DTZ 4 Rf3 Win with DTZ 4 Rg3 Win with DTZ 4 Rh3 Win with DTZ 4 R1d2 Win with DTZ 6 R1d6 Win with DTZ 6 R1d7 Win with DTZ 6 Re7 Win with DTZ 6 Bc1 Win with DTZ 8 Bc3 Win with DTZ 8 Be5 Win with DTZ 8 Rd1d3 Win with DTZ 8 R1d4 Win with DTZ 8 R1d5 Win with DTZ 8 Ree1 Win with DTZ 8 Re2 Win with DTZ 8 Re4 Win with DTZ 8 Re5 Win with DTZ 8 Re6 Win with DTZ 8 Ree8 Win with DTZ 8 Bd4 Win with DTZ 10 Ba3 Win with DTZ 12

Ba1 Draw Bf6 Draw Bg7 Draw Bh8 Draw R8d2 Draw

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 (?)