KenKen

A Latin-square puzzle with a twist: every row and column holds 1–N once, and each outlined "cage" must hit its arithmetic target. Pure deduction — no guessing. Fewer seconds is better.

Trains: Arithmetic logic · Category: Logic & Puzzles

How to play: KenKen is a free, browser-based brain-training game in the Brain Gym suite. Play it instantly — no sign-up, works offline, and your best scores are saved on your device.

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