🔢 Sudoku
- Choose a difficulty (Easy to Expert).
- Tap an empty cell, enter a digit 1–9 via the pad or keyboard.
- Every row, column and 3×3 block contains 1–9 exactly once.
- Notes for small candidate digits, Hint fills the selected cell. After 3 mistakes the round is over.
🃏 Memory & number games
Memory: find two matching cards. Number Fusion: merge equal numbers up to 2048/4096. Number Sequences & Pattern Recognition: continue the logical series. Math Challenge: 60 seconds of mental arithmetic. Nonograms: fill cells by the row and column numbers to reveal a picture.
📅 Daily & PWA
- Daily: new puzzles every day on the Daily page.
- Install: choose “Add to home screen” in your browser menu.
- Light/Dark: toggle 🌙/☀️ at the top right.