Featuring a huge number of Futoshiki puzzles at a range of sizes, all carefully sorted into order of increasing difficulty, this fifth volume of 200 puzzles is full of attractively-designed challenges from best-selling puzzle author Gareth Moore, author of many international books. Futoshiki combines the row and column restraints of Sudoku with arrows that indicate the smallest number of certain pairs, and this book contains 50 each at sizes 5x5, 6x6, 7x7 and 8x8. Printed on large, top-quality paper ideal for solving on, the 200 Futoshiki puzzles vary in difficulty from easy to hard so whatever your preference or experience you'll always find a puzzle here to suit you
Dr Gareth Moore is the author of a wide range of brain-training and puzzle books for both children and adults, including The Mammoth Book of Fun Brain Training, Keep Your Brain Fit: 101 Ways to Tone your Mind and The Rough Guide Book of Brain Training. He is also the creator of online brain training site Brained Up (www.brainedup.com) and runs the puzzle website www.puzzlemix.com. He gained his Ph.D from Cambridge University (UK) in the field of Machine Learning, and has contributed to various advanced projects for leading technology companies.