Faster mate · Recommending a Worthy on Horseback

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

13 moves

Recommending a Worthy on Horseback (走马荐贤) — Deep as the Sea (渊深海阔, 1808), no. 97 The book prints a mate in 7. Hf8+ mates sooner, which breaks the stipulation outright. The mainline is the book’s solution; a branch, where there is one, is what the solver found. Record from dpxq.…