Corrupt record · Ma Yuan Sweeps the North

What the solver found: an exact audit of the classical manuals

11 moves

Ma Yuan Sweeps the North (马援扫北) — Deep as the Sea (渊深海阔, 1808), no. 265 In the recorded position Black mates first, so the record cannot be the composition. The mainline is the book’s solution; a branch, where there is one, is what the solver found. Record from dpxq.com.