ZenSum: Pure Logic Number Game

No guessing, just pure logic — pick numbers so every row and column adds up.

ZenSum (Zen Sum) is a calm number puzzle built on one simple idea: switch on the right cells so every row and every column adds up to its target.Love sudoku, kakuro or other number games? ZenSum is a logic puzzle about sums: a math puzzle without pen and paper, a quick brain game for a few minutes a day and a relaxing puzzle game that also works offline.No arithmetic drills, no guessing. Every puzzle has exactly one…