The Evaluation of Chu-Shogi´s Special Rules by Using a Computer Self-Play Experiment

This study explores how evolutionary changes of the rules affect the characteristics of the games in the Shogi species. There are Dai-Shogi (Big Shogi) variants that are played with a big board and numerous pieces, but almost all such variants are now obsolete. Only a variant called Chu-Shogi is still played by some people. In this paper, we evaluate the impact of special Chu-Shogi rules that are not included in modern Shogi through a self-play experiment. The findings show that the characteristic Shishi rules have a significant impact on the game quality of Chu-Shogi.