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(constructed) shogi problem; shogi puzzle
詰将棋で思考力を鍛えた。
I sharpened my thinking skills with shogi puzzles.
父は毎朝詰将棋の問題を解くのが日課だ。
Solving shogi puzzles every morning is my father's daily routine.
詰将棋の本が棋力向上に役立つと言われている。
Shogi puzzle books are said to help improve playing strength.