Unusual puzzles take difficulty to new heights, asking puzzlers of all skill levels to flex their mental muscles and give their grey matter a workout.

This newest addition to the Train Your Brain collection includes more than 150 unique visual puzzles in a variety of styles that will stretch, engage, and entertain. These puzzles go beyond your average word search or crossword and include brainteasers, binariosi , golf mazes, letter blocks, anagrams, word pyramids, connects, doodle puzzles, sudoku, and more.