ふつうの将棋 is a popular free chess app available for iPhone users. The app offers both a single-player mode where you can play against a computer AI and a two-player mode for playing against another person. In the single-player mode, you can choose from three levels of AI difficulty, ranging from "weak" for beginners to "strong" for more advanced players. You can also adjust the handicap by setting the "teai" (number of pieces given) to make the game more challenging or balanced.

The app provides a useful feature for beginners who may be unfamiliar with the rules of chess. You can view a list of how each piece moves, ensuring that you can play confidently even if you forget the specific rules. Additionally, the app includes various rules such as repetition draws ("sen-nit-te") and illegal pawn drops ("uchi-fu-dume"), allowing you to familiarize yourself with these unique chess rules.

After each game, you earn coins that can be used to exchange for new pieces and boards, allowing you to customize your playing experience. The app also offers the ability to review and analyze your games by viewing the game records ("kifu"). This feature is especially helpful for analyzing losses and improving your gameplay.

Whether you're a beginner looking to learn the game, an experienced player seeking challenging AI opponents, or simply someone looking to exercise their mind during downtime, ふつうの将棋 is a great choice. Download it now and enjoy the world of chess!