Syzygy endgame tablebases

Black is losing with DTZ 12

Rd4 Loss with DTZ 11 Kc7 Loss with DTZ 9 Rg4+ Loss with DTZ 9 Kc8 Loss with DTZ 7 Rc4 Loss with DTZ 7 Rb4 Loss with DTZ 5 Rf5 Loss with DTZ 5 Rf6 Loss with DTZ 5 Rf2 Loss with DTZ 3 Ra4 Loss with DTZ 1 Re4 Loss with DTZ 1 Rf1 Loss with DTZ 1 Rf3 Loss with DTZ 1 Rf7 Loss with DTZ 1 Rf8+ Loss with DTZ 1 Rh4 Loss with DTZ 1

KRRBvKR.pgn lichess.org

Histogram: KRRB winning vs. KR (log scale)

⋮

Longest KRRBvKR phases

KRRBvKR statistics (unique positions)

White wins:
6,999,234,042 (85.3%)

Frustrated white wins:
58,627 (0.0%)

Draws:
1,192,835,879 (14.5%)

Black wins:
8,641,700 (0.1%)

KRRBvKR.json (?)

KRRBvKR dependencies

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

KRBvKR · KRRBvK · KRRvKR

KRRBvKR.txt KRRBvKR.dot