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Tag Archives: INSANE
Weekly Kakuro (Cross Sums) #2
To celebrate the 2nd anniversary of my first truly “INSANE” Killer Sudoku, posted on September 27, 2005, this week’s Kakuro is rather large and fairly difficult. Let me know how you like it. Rules: Solve the puzzle so that the numbers in every horizontal and vertical region add up to the sum indicated for that […]
Posted in General, Kakuro, Killer Sudoku
Also tagged FREE, KAKURO, killer, killer sudoku, rules, Rules Solve, UPDATE, Weekly Kakuro
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Insane Killer Sudoku
Ok, a few regular readers have requested an INSANE Killer Sudoku puzzle so I had to respond. This puzzle should be very difficult to solve. In fact, it might require some trial&error attempts to be solved. Do not attempt to solve this puzzle unless you are willing to accept that! Click on the puzzle thumbnail […]
Posted in Free sample puzzles, Killer Sudoku
Also tagged killer, killer sudoku, Perfect Sudoku, Weekend Special
7 Responses
Daily Consecutive/Non-consecutive puzzles
Well, it’ time to revive the “Daily Sudoku variants” page. First of all, that page has been renamed to “(Non)consecutive”. Since this variation of Sudoku puzzles has proven to be more popular than odd/even and greater/less than, I have decided to give you one such puzzle every day, Monday to Friday. Hardest puzzles (IQ/Insane) will […]
Posted in General, Killer Sudoku, Sudoku Variants
Also tagged CONSECUTIVE, Daily Killer, Daily Killer Sudoku, Daily Sudoku, Daily Sudoku Variants, greater/less, HARD, IQ, killer, killer sudoku, odd/even, Sudoku Variant, Sudoku Variants, variant
3 Responses
First INSANE September 27 anniversary
Well, folks, one year has passed since I posted my first INSANE Killer Sudoku puzzle. Although it wasn’t “perfect” (it contains singleton cages), most probably this site wouldn’t become popular if it hadn’t been for that puzzle. It was by far the most difficult Killer Sudoku puzzle that the world had seen at that time […]
Taking a long weekend
This is to let you know that I’m taking a long weekend, so there won’t be any puzzles posted on Friday, April 28. To keep you happy :), today’s killer sudoku is rated IQ/INSANE, so it should give you a good challenge. I also posted my first ever “non-consecutive” Sudoku on the “Daily Sudoku” page. […]
Posted in General, Killer Sudoku, Sudoku Variants
Also tagged CONSECUTIVE, Daily Sudoku, IQ, killer, killer sudoku
4 Responses
Advanced Sudoku and Kakuro
Since my Sudoku K book is still a few months away, it is time to introduce another book with my Killer Sudoku and Samurai Sudoku puzzles and puzzles from other puzzle creators. The book I’m talking about is called “Teach Yourself: Advanced Sudoku and Kakuro” by Nick ‘Afka’ Thomas. A few words about the author […]
Posted in Kakuro, Killer Sudoku, Puzzle books, Samurai sudoku
Also tagged BOOK, books, HARD, how to solve, IQ, KAKURO, killer, killer sudoku, samurai, Samurai Sudoku, standard sudoku, swordfish, technique, THINKER, x-wing
8 Responses
The Largest Sudoku Ever!
A while ago, one of our visitors – Mike – posted a message asking for this: I’m really looking forward to our special xmas day insane banzai samurai bushido Honda pachinko sushi killer. Well, I never posted such a puzzle, but this one that I’m posting right now could go under that name. It’s a […]
Posted in Free sample puzzles, Samurai sudoku, Sudoku Variants
Also tagged Butterfly Samurai, Butterfly Sudoku, Classic Sudoku, killer, samurai, Samurai Sudoku
13 Responses
Sudoku Killer Insane – with Quad Symmetry
I just uploaded an INSANE Killer puzzle to Daily Killer page. Not only that it has the highest difficulty ranking, but it’s also fully symmetrical, just like yesterday’s BRAIN puzzle. Normally, Sudoku Killer puzzles have “rotational” (or diagonal) symmetry, but I have enhanced my generator to create puzzles with any symmetry – rotational, horizontal, vertical, […]
Weekend Special – Insane Killer
Ok thanks for all your comments to my post regarding the difficulty of some puzzles. I completely changed the rating system and created a large number of puzzles just to test it. As promised – I just posted an extra killer puzzle, rated (by the new rating system) as INSANE. It’s actually one of the […]
Daily & Weekly Puzzles
Since it seems that this week’s brain X was a tricky one, today I didn’t post an INSANE puzzle, but rather just an IQ. It’s still quite difficult – maybe even more difficult than the brain X. I also posted a 4×4 classic Sudoku puzzle with another “shape” in it. It looks pretty I think. […]