Pairdoku: Logic Game

Fill the grid with two kinds of tiles, like apples and oranges. Every row and column must hold the same number of each, and no three of a kind may sit in a row. Every puzzle has exactly one solution, so you can solve it with pure logic and never need to guess. HOW TO PLAY • Tap an empty cell and pick a tile. • Give every row and column an equal number of both tiles. • Never line up three of the same tile in a row or column. • As you progress, "=" and "×" links appear: cells joined by "=" hold the same tile, and cells joined by "×" hold different tiles. • Once colored regions appear, each region must also hold an equal number of both tiles. FEATURES • Every puzzle has a single solution • New rules are introduced one at a time with short tutorials • Stuck? A hint shows you the next logical move • A wrong tile costs a heart, and you can retry the same puzzle anytime • Tile designs change as you progress • No time limit, so play at your own pace