Mental Clock - The new mental game! - Bog af Marc Riviere - Paperback
MENTAL CLOCK is a puzzle game, created by a child who used to stare at his digital alarm clock before sleeping. One night, unable to fall asleep, he started to play with the figures he sees on the clock by adding, subtracting, multiplying and dividing them. Since this moment, he looks forward to going to bed at night to play his game. From children to mathematicians, MENTAL CLOCK is an addictive, entertaining game that tickles the mind. Easy to play, Mental Clock offers several levels of difficulties..