CalcoTools Games

Ten Merge

Tap two side-by-side digits that add up to ten to clear them. Every board can be cleared completely, but only if you pick your pairs carefully.

How to play

  1. Tap a digit, then tap a neighbour directly above, below, left or right of it.
  2. If the two digits add up to 10 they both clear. Otherwise your selection moves to the second digit.
  3. Cleared squares are empty and no longer count as neighbours.
  4. Clear the whole board to win. If no pairs are left, undo some moves or start a new board.

Tips and strategy

  • 5 pairs only with another 5, so look at where the 5s are first.
  • Corners and edge squares have fewer neighbours. Clear those early before they get stranded.
  • A digit with several possible partners is flexible. Save it for last and clear the rigid ones first.
  • Undo is free, so test a pair and step back if it leaves a lonely digit.

FAQ

Can every board be cleared?
Yes. Each board is built from pairs that add up to 10 and sit side by side, so at least one complete solution exists.
Do diagonal neighbours count?
No. Only squares that share an edge count as neighbours.
What is Best?
It is the most pairs you have cleared on a board of that size, saved in this browser.