
To start, every square is unselected. To select a square, just click once and it will be marked with a green circle.
AddEmly is a new and engaging logic-based deduction game inspired by combinatorics.
Each puzzle features a Latin square board, meaning the numbers 1-N appear exactly once per row and column. There are some unknown selected squares that contribute to row and column sum totals. Puzzles can be solved using pure logic and deduction with no guesswork.
To start, every square is unselected. To select a square, just click once and it will be marked with a green circle.
To rule a square out, right click, double click, or long press on mobile and it will be marked with a red X.
To reset the square, click again and it will return to its original unmarked state.
In this case, all must squares must be selected to meet the sum total of 15.
5 must be selected because without it, the highest possible sum total is only 10.
2 cannot be selected in this case because that would leave a sum of 2 left, which cannot be another 2 as there are no repeats in a row and cannot be 2 ones as that would also be a repeat.