Sudoku Players' Forum (clone)

can't get step by step solution for diabolical puzzles for 2/1 and 2/2. Is there someone I can email about this? Thanks

It might help to indicate who/what publishes the puzzles in question, for those of us not in the know.

Tracy

Hi Tracy--the puzzles are from Sudoku of the day on the web. I noticed that you are from Kalamazoo--so am I--actually Richland. Sharon By the way--I did notify the support system and they are working on a fix. I like the step by step solution because it sometimes helps me see forcing chains and x wings. Thanks

For those of us not in the States here's the website. Sudoku Of The Day

1st Feb 2006 - Diabolical

Code: Select all

 4 7 6 | . . 2 | . . 9
 8 3 . | . 1 . | . . .
 2 . . | 4 . . | . . 5
-------+-------+------
 . . . | 2 . . | . 9 .
 6 . . | . 5 . | . . 8
 . 5 . | . . 7 | . . .
-------+-------+------
 1 . . | . . 6 | . . 2
 . . . | . 4 . | . 3 1
 5 . . | 7 . . | 9 4 6

states it needs: Single Position (Hidden Single), Single Candidate (Naked Single), Candidate Lines (Locked Candidates), Double Pairs (~X-Wing / locked candidates), Multiple Lines (~X-Wing / locked candidates), Hidden Pairs, Forcing Chains.

2 Feb 2006 - diabolical

Code: Select all

 . . 2 | . 3 6 | . . 1
 . 7 9 | . . 8 | . 2 .
 . . . | . . . | 6 . .
-------+-------+------
 . . 6 | 1 . . | 7 . 5
 . 8 1 | . 5 . | 2 9 .
 5 . 7 | . . 4 | 1 . .
-------+-------+------
 . . 3 | . . . | . . .
 . 9 . | 8 . . | 3 5 .
 2 . . | 3 4 . | 9 . .

says it needs: Single Position, Single Candidate, Candidate Lines, Hidden Pairs, X-Wings, Forcing Chains.

hi.

the 1st of February puzzle only needs one skyscraper to solve!

Taking out all the single candidates leaves you here:



and then finding this cutie:



solves the whole thing! in other words no need for:

Candidate Lines (Locked Candidates), Double Pairs (~X-Wing / locked candidates), Multiple Lines (~X-Wing / locked candidates), Hidden Pairs, Forcing Chains.

havard