Binary puzzle is a great brain game! If you play Binary puzzle every day, it is perfect for sharpening concentration and enhancing Your memory and logic skills. This Binary puzzle book filled with 100 puzzles for adults contains 50 hard and 50 hard+ large print puzzles: Senior Friendly Book ONLY 1 puzzle per page Puzzle size: 8x8 - 14x14 Large & easy to read Difficulty level: Hard, Hard+ Only One Solution for each Puzzle Paper size: 8,5 x 11 inches *If you are having problems with any particular page you can always look up the answer in the back of the book Challenge your brain and have fun!
