Grid Four

Complete a compact 1–4 number grid.

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How to Play

Press Start. Some cells are given. Select an empty cell, then choose 1–4. The grid is complete when every row, column, and 2×2 box is unique.

Tap a writable cell, then tap 1, 2, 3, or 4. Given cells cannot be changed.

Slide, combine numbers, and keep the grid alive.

Slide tiles into numerical order.

Brainmedium

Flip cards, remember positions, and match every pair.

Flip lights and neighbors until none remain.

Tap as fast as you can before time runs out.

Wait for the signal, then react as fast as you can.

Solve arithmetic questions against a countdown.

Match the color or the word before time runs out.