Matrices
Spot the hidden rules in a 3×3 grid and find the missing card.
How to play
In each 3×3 grid, the cards follow rules: every row and every column contains each value of every active attribute exactly once. Deduce the card that completes the grid.
This game trains inductive, abstract reasoning: spotting an unstated rule from examples, one of the classic markers of fluid intelligence.
Difficulty
Questions