dailysudoku.com

David: I am seeing R5C6 equal to 8 not 3. There is a 3 above at R4C6. What is interesting is that the guest said your tip was great and he was OK from there. Strange? I enjoy reading and learning fro ...

Ravel: Thanks for me too, I simply did not see the removal of 7 as a candidate in R3C6, thereby creating the X-Wing. Sometimes it seems we can look for so long that we create blind spots - this was c ...

PT: I agree with you, there is no X-Wing on 7 at the positions described. Your obversation on the (1,7) pair is excellent and correct. I asked once before if this technique has a name - I didn't see ...

I, too, cannot see the three at R5C5 in the original post. I looked at this one a long time and overlooked the "8" X-Wing because I kept being drawn to the multiple Unique Rectangles in this puzzle. H ...

Bill: The exclusion of twos in block 7 is what allowed/forced the choice for two in block 4.

Bill: Two is restricted to R9C1 and R9C2 - thus other twos in block 7 can be excluded. Good Luck. Charles

Not much discussion in the last few days. I miss learning something in almost every topic discussed. I solved May 20 using "If Then" on the threes in R7C1 and R7C3 For either choice of three, R4C1 can ...

Am I getting senile or are the puzzles just getting harder. On May 12 (Hard) I could do it only by seeing that one 8 in box6 fails i.e. wrong one "solves box 6 but then box3 fails on pressures from "4 ...