It is a shogi problem for smart phone. There are 30 questions in all. I think that he can enjoy himself from beginners to the direction of the owner of the stage since it is variously from easy hand to a tricky thing.バグ修正
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13問目に答えが2通り以上あります。 些細なことですが。
ちょうどいい難しさでした。
Excellent explanations (in Japanese) sometimes exploring alternate lines.
Love the app, a hisshi and a tsugi no itte would be cool too.