■ Rich Gameplay Features
Intuitive board controls: Easily select cells, enter numbers, and manage memo (candidate) notes
Candidate memo management: Record candidate numbers in each cell with 3 states (candidate / eliminated / unset)
Full Undo/Redo support: Freely undo mistakes and redo moves
■ Learning Support
Intelligent hints: Get solving technique tips when you're stuck
Technique explanations: Each hint highlights the relevant cells so you can visually understand why a number goes there
■ Multiple Difficulty Levels
Choose from 5 difficulty levels: Easy / Normal / Hard / Expert / Custom
Custom difficulty: freely set the number of pre-filled cells
Create your own puzzles and play them
■ Modern UI Experience
Theme support: Light / Dark mode with automatic OS sync
Game-specific color design: high-visibility color layout for a comfortable experience
Multilingual: Japanese and English supported
■ Recommended For
Fans of number place puzzles
Those who want to train their brain during spare moments on their smartphone
Those who want to learn solving techniques while playing
Those who want to create puzzles and share them with friends