About PlayMemorize Matrix

PlayMemorize Matrix is a free pattern completion game inspired by Raven's Progressive Matrices, one of the most widely used IQ test formats. You see a 3x3 grid with the bottom-right cell missing and must identify the correct piece from multiple options.

Multiple rule types. Patterns use five properties (shape, color, size, fill, count) applied across rows, columns, or diagonals. At higher difficulties, multiple rules combine for complex patterns that test fluid intelligence.

Five shape types. Circle, square, triangle, diamond, and star, each rendered with solid, outline, or half-fill styles. Three sizes and five colors create rich visual variety.

Part of the PlayMemorize family of free memory and brain training games.