Deep Abyss, Wide Sea No. 204 · Raiding the Fortress at Mei
Nine records whose printed line does not hold
15 moves
渊深海阔 (1808), 第204局 郿坞搜剿. The record claims mate by continuous checks in 8 moves, and the printed line does mate. It is not forced: at move 7 the defence has e5f7, which the record does not give, and after it there is no continuous-check mate within six moves of the recorded lengt…