Sum Select

A closer look at Sum Select

Build the target total

Each round shows nine numbered tiles and a target. Select one or more tiles whose sum equals that target, then choose Check sum. You may use any number of tiles, as long as each tile is used at most once. Equal values on different tiles are separate choices. Tap a selected tile again to remove it from your total.

Look for a remainder

Instead of scanning every possible group, choose a promising number and subtract it from the target. If the target is 14 and you choose 9, you need 5 more. A visible 5 completes the group; otherwise, a 2 and a 3 might work. The running total updates after every selection so that you can check your mental calculation.

Several answers can be right

The game creates a target by adding three of the displayed tiles, which ensures that at least one solution exists. Your answer does not need to match those original three tiles. If a single tile equals the target, that one tile is enough. Likewise, a longer combination is valid when its total is exact. The game checks the sum, not a hidden preferred pattern.

What happens after a guess

A correct answer completes the round. The next-round button gives you time to look at your solution before replacing the board. An incorrect answer leaves your selection visible so that you can adjust it. There is no time limit and no deduction for an incorrect check. After ten solved rounds, the session is complete. New puzzle starts again from round one.

Try a different approach

If a group adds to too much, work out the excess before removing tiles. A total of 17 against a target of 14 is three too high. Removing a selected 3 would solve it; replacing a selected 8 with an unselected 5 would also reduce the sum by three. This difference-based approach is especially useful when a nearly correct group is already on the board.