Syzygy endgame tablebases

Black is losing with DTZ 52

KQQRvKRB.pgn lichess.org

Histogram: KQQR winning vs. KRB (log scale)

Longest KQQRvKRB phases

KQQRvKRB statistics

370,653,230,439 (99.4%)
1,811,171,873 (0.5%)
3,020 (0.0%)
344,618,252 (0.1%)
KQQRvKRB.json (?)