Quads is a two-player abstract strategy game on a 4x4 board. The twist is that you do not choose your own piece — your opponent hands it to you, and you hand them theirs. Every piece is either tall or short, light or dark, square or round, and hollow or solid. Line up four in a row that share any one of those four traits and you win, which means the piece you pass across the table is usually the piece that decides the game.
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