Get One Digit - Merge Puzzle

Like 2048, but you need to think more.
Advantages of the game:
- Free game forever.
- Simple elegant design.
- Interesting step-by-step training.
- Easy levels in 3 x 3 mode.
- Challenging levels in 3 x 3*, 5 x 5 and 7 x 7 modes.
- Remedy for stress.
- Cancel moves if you reach a dead end.
- Infinitely generated levels.
- Intuitive simple controls.

The goal is to merge all the digits so that only one digit remains. Arithmetic operations with numbers may remain - you still win.

For example, you have 2 and 2. Move the block with the number 2 to 2 and you will get one block 4. Victory.

For example, you have 2, ×2 and 4. Move the block with the number 2 to the operation ×2, you get 4. Move 4 to 4 and you get 8. Victory.

In 3 x 3* mode, some operations are inverted. Find which operations you need to change and click on them to invert.

For example, you have 4, x2 and 2. Click on x2 to invert by /2. Move 4 to /2 and you get 2. Move 2 to 2 and you get 4. Win.

The game has portals, indicated by rectangles on the block. Move a number to an empty block with a portal, and the number will try to move to a filled block with a portal. Only works in one direction.

Don't understand how to play? Click on the question mark in the upper left corner to complete the tutorial.