📝H. G. Muller wrote on Sat, Apr 25, 2015 12:46 PM UTC:
I was referring to the games Mori-Fukui, Kondo-Konishi and the handicap games Kuri-Masuda, Kuri-Sawada, and Mori-Matsumoto (2x). These are recorded in a manuscript from 1778, but it does not say when the games were played. The 50 mating problems by Ito Sokan I were published in the Chu Shogi Zushiki from 1697AD.