Example puzzle

This is an example puzzle. You can solve it the same way as you would solve competition puzzle, but result never stored. You can reveal an answer for the puzzle by clicking "Show answer" link.

Product Kuromasu

Author: Andrey Bogdanov

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Write digits into some cells so that each row and column contains exactly two digits. Numbers outside show the product of the digits in the corresponding row or column. Two cells with digits cannot share an edge and all cells without digits should form single orthogonality connected area.

Example puzzle

Grid control: Click at a cell reveals the value chooser. Click at the selected value changes the state of the cell. More details about grid control are at the help page.