It worked quite smoothly. I used a unique rectangle, though I'm sure it wasn't necessary. No greens.
SPREADEAGLE--Have you tried brainbashers.com.. You can import sudokus from anywhere and it has some good techniques descriptions. Also has archives & 'super-hard' puzzles
I'm ashamed I went to greens on this one -- I missed an obvious singleton in the upper right, which made everything fall out
nice and smooth
Difficulty score 15. It seemed harder than that to me.
The computer says you only need to cross-hatch the blocks!
For those of you who find the difficulty score interesting or useful, I have tabulated the scores for a little over half the puzzles published here. As time allows I will get the rest. At the bottom of the table is basic statistical analysis of the puzzles that you might find interesting.
One interesting fact is that the highest score I have given to an Easy puzzle is 32 while the lowest score I have given an Expert is 29.
Hi Dr. Who... I do find the scores interesting. thanks! and thanks for those 2 stats you just posted... that IS intersting
And now, my impersonation of the trolls I've seen post here (inspired by a previous day's chat log)
Your a cheater if you use your eyes, keyboard or mouse. Only peple who do hard work like me are perfect!
Thank you. I'll be here all week. Tip your waitress.