Tag Archives: outie
By djape
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Published: October 16, 2005
One of our visitors (Phyllis) asked about the puzzle posted on October 13. Now, this puzzle definitely doesn’t need any trial and error to be solved – in fact it’s only rated as “thinker”. However, it requires a technique that in the new version of Perfect Sudoku will be called “complex innies/outies”. It is basically […]
Posted in Free sample puzzles, Solving tips
| Also tagged innie, INNIES, IQ, OUTIES, Perfect Sudoku, solving tip, solving tips, standard sudoku, technique, THINKER
By djape
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Published: October 15, 2005
Cindy, one of our regular visitors kindly asked me to post a daily puzzle today and I couldn’t say no :). So, even that I usually don’t do it on Saturday’s – you can find a very nice Killer Sudoku on the Daily page. It’s interesting that this one after the usual procedure of finding […]
By djape
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Published: October 12, 2005
I’ve received a possible solution for September 27 puzzle using only minor trial and error from udosuk. Here are his comments. You can also download the images that he sent: Firstly, the first pic (dk0927a.png) shows the steps I last posted which narrows R[1,2]C7 to {25} and then some more… From there I’ve worked out […]
By djape
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Published: October 7, 2005
Ok, here is the explanation of the “Cage/fence splitting” solving technique for Killer Sudoku puzzles that I promised before. I will use the puzzle posted on Friday, October 7 and solve it step by step using this method. We extend the idea of the “innies” and “outies” solving technique, except that you’re not looking for […]
Posted in Killer Sudoku, Solving tips
| Also tagged Cage Splitting, innie, INNIES, innies and outies, IQ, killer, killer sudoku, OUTIES, rule of 45, sample puzzle, solving technique, technique
By djape
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Published: October 1, 2005
Today’s puzzle is not the ordinary 3×3 Killer Sudoku, but rather it’s a 4×2 variant. All rules remain the same, except that there are now only 8 digits used (1-8). NOTE:Since only 8 digits are used, the sum of all boxes, rows and columns is 36! Be careful when you look for “innies” and “outies”! […]
By djape
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Published: September 27, 2005
This tip is probably the most important solving technique of Killer Sudoku, one that will save you a lot of time. It does involve some math, but very simple one. Basically, the whole story is that you have to bear in mind that 1+2+3+4+5+6+7+8+9 = 45. Very smart, huh? Well, maybe not so, but it’s […]
Posted in Killer Sudoku, Solving tips
| Also tagged innie, INNIES, innies and outies, IQ, killer, killer sudoku, Killer Sudokus, OUTIES, rule of 45, solving technique, technique
