Difficulty score 31.

nasty as they come

go

Very Very Tough

done. no greens

start

done

go

Done. Check the date of the very first sudoku puzzle in the archives - March 11, 2006 ! Happy Anniversary, all.

go. and happy anniversary.

go

eh. no time to finish this morning. will try again later. grrr...

start

done... not too bad

done, with greens, not so hard

hello everyboody

stuck after 15

't was hard. have a good day

hey yul. i found it hard too. did u complete?

done:)

start

go

done, with greens and interruptions

If you do this one with green it should be no problem, but without green you have to be slightly devious.

done

Go.

15. Stuck.

Have to take a break.

Found two devious moves. 18. Going to pick up daughter from school.

Done. It had three pretty clever tricks.

done, no greens... but with 1 wrong guess - have a great day all !

Finally complete - indeed a fiendish one, where I had to rely on a technique I hate using (as it feels like cheating - and no it's not guessing numbers!)

commence

and.. finally terminate.. no greens...

a deliciously devious puzzle

go

Done

go...

done,no green

go

go

done. auto g+r.

done