damn!!

Advanced methods and approaches for solving Sudoku puzzles

damn!!

Postby carlos » Fri Nov 04, 2005 4:28 pm

this an original hard puzzle:

56x|x1x|8xx
xxx|xx3|xxx
x7x|xxx|x16

xxx|xx8|4x2
xxx|3x7|xxx
9x5|4xx|xxx

62x|xxx|x3x
xxx|2xx|xxx
xx9|x3x|x51

and this is where i got so far:
56x|x1x|8xx
x(9)x|xx3|xxx
x7x|xxx|x16

xxx|xx8|4x2
xxx|3x7|xxx
9x5|4xx|xxx

62x|xxx|x3x
x(5)x|2xx|xxx
xx9|x3x|(2)51

can please someone tell me how can i move on from here?
this is the first time i get stuck so earlier
thank you
carlos
 
Posts: 2
Joined: 04 November 2005

Postby SteveF » Fri Nov 04, 2005 4:50 pm

Have a good look at where candidates can go in box 4 and see if this allows you to remove some possibilities in boxes 5 and 6.

Then look at box 6 and see if this allows removals in boxes 4 and 5.

ie you are looking for 'locked candidates'

This should allow a placement (in box 4).

Reply if you are still struggling and I will supply which candidates you are looking for.
SteveF
 
Posts: 86
Joined: 26 March 2005


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