Mastering Sudoku Week by Week: 52 Steps to Becoming a Sudoku Wizard
Sudoku has become an addiction for millions--and that’s great, because mind games help keep our brains in good working order. But even though the rules are simple, many solvers need some help when cracking the more complicated grids. That support is here in abundance...enough to take to you into the realm of the Very Difficult and even the Fiendish. Using this attractive guide, solvers will smoothly progress through 52 stages, each with a self-testing and timed puzzle to monitor progress. Chock-full of tactics and tips, and drawing on strategies evolved by Sudoku experts from Japan, Europe, and the United States, this little book takes you to the top.
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My goto book whenever I need guidance on how to work a particular solving technique. The authors website allows you to print out the puzzles in the book, so that you can review and practice a technique even if you've already worked the puzzle in the book - or messed it up with pencil marks too much to solve!
Crosshatching 26 Visualization 28 Grouphatching 34 Claims and virtual crosshatches
Basic techniques roundup
BEYOND THE BASICS 44 Placing numbers in rows and columns 50 Candidates and a change of approach 58 Putting it all together 61 The power o...
THROUGH THE PAIN BARRIER 70 Building full candidate lists 74 The two single rules 75 Multis pairs triples quads 82 Interlude redundant patter...
EXTREME SOLVING 102 Fishy patterns XWing 106 Fishy patterns Swordfish 109 XYWing 111 XYZWing 113 Conjugate pair chains 118 Forcin...
OUT ON YOUR OWN 134 Twenty challenging puzzles to solve
FURTHER ADVENTURES 156 Beyond the 9x9 matrix 160 Sudoku on the Internet 163 SOLUTIONS TO THE PUZZLES