Dual · Havoc at Kunyang

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

13 moves

Havoc at Kunyang (大闹昆阳) — Deep as the Sea (渊深海阔, 1808), no. 44 At move 4 the book plays Ch5+; Ch4+ mates just as fast. A dual. The mainline is the book’s solution; a branch, where there is one, is what the solver found. Record from dpxq.com.