Puzzle games

Crossmath Challenge

Place number tiles in a crossword-style grid so the equations work both across and down.

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Controls & keys

Tap or click a tile: Select a tile from the tray.
Tap an empty cell: Place the selected tile.
Drag a tile: Place directly onto a cell.
Undo button: Remove the last placed tile.
Shuffle button: Reorder tiles in the tray.
Hint button: Auto-fill one cell (limited use).

About Crossmath Challenge

Crossmath Challenge turns a crossword grid into connected equations. Select a tile from the tray and place it in an empty cell, or drag it directly into position. A number needs to fit the arithmetic in both directions where the rows and columns intersect.

Check the crossing equation

A tile can make one line look correct while breaking the line that crosses it. Before settling on a value, read the full equation across and down. Start with a position where the surrounding values give you a clear constraint.

Use Undo to test a focused change

Undo removes the last placement, Shuffle rearranges the tray and the limited-use Hint fills a cell. Rearranging the tray does not solve an arithmetic conflict by itself, so return to the equation that needs attention before spending a hint.

Your first attempt

How to play Crossmath Challenge

To begin, observe the empty crossword-style grid and the available tiles in your tray. Select a tile by tapping or clicking it, then tap an empty cell in the grid to place it. Alternatively, you can drag a tile directly from the tray onto a desired cell. Your goal is to complete all horizontal and vertical equations correctly. Use the "Undo" button to reverse your last move, "Shuffle" to reorder your tray tiles, or a limited "Hint" to automatically fill a cell if you get stuck.

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