Then, when there are fewer candidates left and if you need more advanced techniques, you can mark the live candidates more explicitly (I use circles with relationship markers, but you could use regular numbers too if you find them easier to read). All these puzzles have a single unique solution. The booklets are ordered by ascending difficulty - the puzzles in book 100 are much harder than the puzzles in book 1. 300 Fiendish Sudoku Puzzles Book Issue 43 - Warning Contains Serious Sudoku. 300 Fiendish Sudoku Puzzles Book Issue 79 - Warning Serious Sudoku BRAND NEW. The live candidates are represented by the non-dotted empty spaces in the cells, which might seem hard to read at first, but you get used to it. Each booklet contains a collection of eight different puzzles, 1-per-page, with a page of answers in the back. SUDOKU BOOK TEAR & SHARE PUZZLES PAD OCTOBER 2022 - 104 PUZZLES TO SOLVE. ISBN: 9780753511589: Dimensions (HxWxD in mm) H194xW130xS10: No. Watch out These puzzles are killer But if you dare, grab a pen and take on these two hundred all-new extra-challenging Sudoku puzzles.

I use the same on regular sudokus but it works especially well with killers, because at first there are many more live than dead candidates. With five difficulty ratings, from very easy to deadly, the 100 brand new Killer Sudoku puzzles in this book will provide a challenge to the most ardent Sudoku addict. if candidate 1 is eliminated, I dot the corresponding spot in the cell's 3x3 space). When solving killers on paper (only way I've ever done it), I use a negative dotting method to mark eliminated candidates (e.g. Killer Sudoku (also called Sum Sudoku) are a kind of hybrid puzzle that combine the best features of Sudoku and Kakuro (cross-sum) puzzles. I've memorized the combos up to 5 cells (happens automatically after a while since those combos are so common) but almost anything larger than that I would look up. Mine came with a sudoku booklet I bought a long time ago, but it shouldn't be hard to create your own as well. When solving Killers or Kakuros you should probably have a look-up table with such unique combos, unless you're really good at calculating them in your head (I'm not). There's only one way to fill 8 cells so that the sum is 39: 1,2,3,4,5,7,8,9. Ave wrote:Thanks so much for the quick reply! I'm afraid I still don't see why the 39 cage can't hold a 6.

Killer sudoku book