"From head-scratching challenges to hair-pulling bafflers, IQ Boosters has more than 300 great puzzles to try! These puzzles will test solvers’ powers of logic, reasoning, ingenuity, and wordplay. Flex your mental muscle with some of the toughest nuts to crack, including Geometracts, a visually vexing boggler, as well as Tic-Tac-Topology, a strategy game for two players. There are also lost, hidden, and missing-number conundrums that add up to loads of brain-stretching fun."