The New Sudoku Players' Forum

by **cat** » Fri Jul 08, 2005 2:35 am

I'm getting quite good at medium puzzle. Have attempted this hard one. Got stuck, and was given a hint for a 7, but have no idea how to find this next move. Can anyone please help

-3- -54 -68
--8 16- 5--
5-- 283 -7-

-7- 4-- --5
--9 --5 7--
1-- -76 -4-

-9- 532 --7
--- --8 3--
38- 64- -5-

Hint is highlighted in red.

by **gfroyle** » Fri Jul 08, 2005 3:44 am

I think this is what Angus calls a "naked triple" ...

The three cells (r8,c8), (r9,c9) and (r9,c7) all have only 1,2 and 9 for their three candidates.

So these three cells, jointly, must contain 1,2 and 9.

But this means that no other cells in the bottom right block can contain any of 1, 2 or 9...

So look at (r7,c8)...

Cheers

Gordon

by **cat** » Fri Jul 08, 2005 4:54 am

Thanks Gordon , will now go away and try and work it out!

by **linklesuperguerrier** » Sat Jul 09, 2005 6:59 pm

help ou au secour (si il y en a ici qui parle français ....)

voila j'ai cette grille -->

a droite (->) la solution avec les chiffres que j'ai et ceux deja donné
(en vert ceux deja donné et en brun ce que j'ai trouver)

mais la je suis bloqué je trouve rien HELP !!!!

by **linklesuperguerrier** » Mon Jul 11, 2005 9:57 am

hey ! i'm exist !

please help me !

who the next number ? (and why ...)
that's my one question !

thank's you

by **simes** » Mon Jul 11, 2005 11:30 am

(9, 4) = 1

It's the only candidate.

by **linklesuperguerrier** » Mon Jul 11, 2005 5:25 pm

who ligne ? -->

by **simes** » Mon Jul 11, 2005 7:25 pm

who ligne?

(Line 9, column 4) = 1

by **linklesuperguerrier** » Tue Jul 12, 2005 10:46 am

ok

thank you

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