Shogi Problem Paradise is a free Android app developed by f21emon. It is a collection of 1700 Shogi problems from 127 authors that will challenge and entertain players of all levels. The app offers a unique opportunity for players to improve their skills and become high-level players by solving puzzles.

As you progress through the levels, you can unlock more features such as the "festival" event at level 4 and the ability to create, send to the administrator, and announce your own puzzles at level 7. The app is compatible with Android 9.0 and provides a fully immersive Shogi experience that is both engaging and entertaining. If you're a fan of puzzle games or Shogi, then Shogi Problem Paradise is the perfect app for you.