**Weekend Special**: Butterfly Samurai Killer Sudoku with diagonal cages! This puzzle consists of 20 (twenty) 9×9 Sudoku sub-puzzles. There are 5 groups of 4 puzzles. Each group of 4 is arranged Butterfly-style, and those 5 groups are arranged Samurai-style.

**Please make sure you understand how the puzzles are arranged before attempting to solve the puzzle.**Also, be careful when solving this one – with diagonally adjacent cells it’s sometimes easy to miscount the number of cells in a cage and if you do that, you get the cage-sum combinations completely wrong!

**Butterfly Killer Samurai Sudoku – Sunday, March 11, 2007 – Difficulty: HARD**

(click to download or right-click to save the image!) | |

**To see the solution to this puzzle**click here

Enjoy!

## 6 Comments

I just have to say that I’m really enjoying solving this puzzle. I’m about 1/2 way through now after 2 days! Keep up the great work, I like the variations.

I am struggling with this. My main problem is on the 12 line down. I make the numbers in the 13th, 14th and 15th cell from the left to be 1,2,and 3 (no particular order) but that would make the numbers in 22nd, 23rd and 24th cells from the left 1,2,and 3 (again in no particular order) but the total is at least 10. Where have I gone wrong?

Many thanks

PAul

Its because the puzzle doesn’t follow the conventional rules. There are two one on the long line. No wonder I couldn’t do it.

I’m 2/5 of the way done… this is awesome!!, there is a slight problem with E2, E3, G2, G3 of the center puzzle… you can rearrange the 1/4 so that there is more than one correct answer… however i solved this problem by making an “imaginary” sudoku grid using one existing grid and two emptys and assuming that the numbers should follow normal sudoku rules within the imaginary grid… i get the “correct” answer in the answer puzzle when i do this. Is this how it is supposed to be figured out? or is there an error in the puzzle? thanks!

Tim, I don’t quite understand what you are saying. There are no imaginary grids. There are 5 groups with 4 sub-puzzles in each one of them. The whole puzzle has one solution, while each of the 20 sub-puzzles could have multiple solutions when solved separately from the rest.

It is best to post your question in the forum: http://www.djapedjape.com/sudoku/forum

Good luck! ðŸ™‚

Djape

Nevermind, I see what I did wrong… Awesome puzzle by the way!