Jeff Hadleigh

1000 Sudoku easy to insane Jeff Hadleigh

1000 puzzles for hours of relaxing brain stimulationEasy level for learning how to solve sudoku up to insane100 very easy100 easy100 medium200 hard200 difficult300 insaneImproves cognitive ability and deductive reasoningFun gift idea for puzzle lovers for any occasionQuality paper provides a better solving experienceGive your brain some gentle exercise while you figure out which number goes where. Keep an eraser handy in case you need it, and allow yourself the occasional peek at the answers in the back of the book if you get stuck. Printed on quality paper so sharp pencils or gentle erasing won't easily tear the page. Great fun for the whole family!