Number Join - Connect numbers

This game is a logic puzzle with simple rules. Your aim is to fill in the missing numbers, in sequential order, going horizontally or vertically only. Diagonal paths are not allowed.

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# Content
- 5 difficulty levels
- more than 500 levels

# Features
- "Check" function can highlight wrong numbers
- option to enable automatically highlight wrong numbers
- Auto-save the process of unfinished levels
- Record best completion time for each level

# Challenge
- Game Center Achievements
- Try to complete as many levels as possible