Syzygy endgame tablebases

Black is losing DTZ 118

Rg1+ Loss with DTZ 117

Rh3+ Loss with DTZ 17 Rc3 Loss with DTZ 5 Ra3 Loss with DTZ 3 Rb3 Loss with DTZ 1 Rd3 Loss with DTZ 1 Re3 Loss with DTZ 1 Rf3 Loss with DTZ 1 Rg2 Loss with DTZ 1 Rg4 Loss with DTZ 1 Rg5 Loss with DTZ 1 Rg6 Loss with DTZ 1 Rg7 Loss with DTZ 1 Rg8 Loss with DTZ 1

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KRBBPvKR.pgn lichess.org

Histogram: KRBBP winning vs. KR (log scale)

⋮

Longest KRBBPvKR phases

KRBBPvKR statistics (unique positions)

White wins:
1,410,307,570,902 (95.0%)

Frustrated white wins:
51,023,398 (0.0%)

Draws:
73,110,878,776 (4.9%)

Black wins:
1,619,448,956 (0.1%)

KRBBPvKR.json (?)

KRBBPvKR dependencies

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

KQRBBvKR · KRRBBvKR · KBBPvKR · KRBBPvK · KRBBBvKR · KRBPvKR · KRBBNvKR · KRBBvKR

KRBBPvKR.txt KRBBPvKR.dot