Tic-Tac-Toe
Classic X vs O battle with clean visuals and fast rounds.
Kakuro Sprint
Match every clue sum, avoid duplicate digits, and clear compact Kakuro grids built for quick mobile sessions.
Playable puzzle
Easy Puzzle 1
A tiny opener to learn clue reading and quick cross-checking. Variant 1 of 12.
Puzzle 1 of 36 in Easy
Easy
Progress
0%
Moves
0
Timer
00:00
Hints
0
Tap a cell, then use the keypad. Keyboard also works: digits to fill, Delete to clear, arrow keys to move.
How to play
Objective
Fill every white cell so each across and down run adds up to its clue without repeating any digit inside that run.
Core rules
- Only digits 1 through 9 are allowed.
- Digits may not repeat inside the same across run.
- Digits may not repeat inside the same down run.
- When a run is complete, its total must exactly match the clue.
How to play on mobile
Tap any white cell to select it, then use the number pad below the board. Turn on Notes mode to pencil in candidates before locking in a final number.
Helpful tools
Notes mode
Store possible digits in a cell when you are narrowing down a run.
Hint
Reveal the correct digit for the selected empty cell, or for the next empty cell if nothing is selected.
Restart
Reset the current puzzle instantly and try for a cleaner solve.
Strategy tips
Start with the smallest clues
Short runs with low or high totals limit the available digit combinations the fastest.
Cross-check every placement
A strong Kakuro move must satisfy both its across clue and its down clue at the same time.
Use notes before guessing
Penciling candidates keeps the puzzle logical and helps you avoid dead ends on touch screens.
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