SU­DOKU

The Gulf Today - Panorama - - Friday Unwind - by Dave Green

Su­doku is a num­ber-puz­zle based on a 9x9 grid with sev­eral given num­bers. The ob­ject is to place the num­bers 1 to 9 in the empty squares so that each row, each col­umn and each 3x3 box con­tains the same num­ber only once.

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