Syzygy endgame tablebases

Black is losing with DTZ 20

KRBBvKB.pgn lichess.org

Histogram: KRBB winning vs. KB (log scale)

Longest KRBBvKB phases

KRBBvKB statistics

8,120,619,699 (90.7%)
833,012,076 (9.3%)
248,437 (0.0%)
KRBBvKB.json (?)