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About game
The objective of the game is to eliminate all the numbers. You can strike through identical numbers or pairs that sum to 10, as long as they are adjacent either horizontally or vertically. The last number in one row can be eliminated with the first number in the next row if they match or their sum is 10. Once numbers are crossed out, they are no longer considered in the game.
How to play
Remove pairs of numbers from the playing field by eliminating them until it's clear. Numbers can be paired if they are adjacent either horizontally or vertically and are either identical or sum up to 10. Examples include pairs like 2-2, 4-4, 4-6, 7-3, 9-1, and so on.
To eliminate a pair, simply click on each number in the pair with your mouse or touch the screen.
If no more pairs can be found but some numbers remain on the field, press the "Add" button to generate new pairs.