Syzygy endgame tablebases
White to move
Black to move
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White is winning with DTZ 1
Qxd3
Zeroing
Ke1
Loss with DTZ 1
KQRBvKQB.pgn
lichess.org
Histogram: KQRB winning vs. KQB (log scale)
Longest KQRBvKQB phases
KQRB winning with DTZ 100
KQRB winning with DTZ 160 (frustrated)
KQRB losing with DTZ 90
KQRBvKQB statistics (unique positions)
White wins:
255,057,420,229 (68.1%)
Frustrated white wins:
476,792 (0.0%)
Draws:
66,012,401,214 (17.6%)
Black wins:
53,593,900,747 (14.3%)
KQRBvKQB.json
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