Ripple Effect (puzzle)

Ripple Effect (Japanese:波及効果 Hakyuu Kouka) is a logic puzzle published by Nikoli. As of 2007, two books consisting entirely of Ripple Effect puzzles have been published by Nikoli. The second was published on October 4, 2007.

For the sociological term, see Ripple effect. For the episode of Stargate SG-1, see Ripple Effect (Stargate SG-1).
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