The New Sudoku Players' Forum

[SuDokuKid]

Here's what I have so far.

If there are any twins that I mised, triplets, an Xwing or Swordfish, please let me know. I'm going crazy.

(9)(3)(245) | (25)(6)(8) | (1)(7)(24)
(158)(7)(258) | (4)(135)(13) | (2689)(28)(2689)
(1468)(126)(2468) | (1279)(17)(19) | (5)(248)(3)
(2)(169)(469) | (8)(1479)(5) | (467)(3)(467)
(147)(5)(3) | (167)(147)(146) | (28)(9)(28)
(467)(8)(469) | (3)(479)(2) | (467)(5)(1)
(3)(269)(1) | (569)(458)(469) | (24789)(2468)(246789)
(568)(269)(25689) | (69)(348)(7) | (23489)(1)(2489)
(68)(4)(7) | (19)(2)(139) | (39)(68)(5)


Thanks!

[Crazy Girl]

you correctly spotted that there is a naked {6, 8} pair in R9, & {2, 8} pair in Block 6, Row 5. Also a 9 in Block 3, Row 2, so {1, 3, 9} triplet in C6.
What you failed to spot was the {3, 5, 8} triplet in C5R2 /C5R7 /C5R8.

After you spot this take a look at the 4's, and if you are still stuck let me know !

Code: Select all

(9)(3)(245) | (25)(6)(8) | (1)(7)(24)
(158)(7)(258) | (4)(135)(13) | (2689)(28)(2689)
(1468)(126)(2468) | (1279)(17)(19) | (5)(248)(3)
(2)(169)(469) | (8)(1479)(5) | (467)(3)(467)
(147)(5)(3) | (167)(147)(146) | (28)(9)(28)
(467)(8)(469) | (3)(479)(2) | (467)(5)(1)
(3)(269)(1) | (569)(458)(469) | (24789)(2468)(246789)
(568)(269)(25689) | (69)(348)(7) | (23489)(1)(2489)
(68)(4)(7) | (19)(2)(139) | (39)(68)(5)



[SuDokuKid]

What makes the 3,5,8 a triplet? I can't seem to grasp that concept.

I can't see the 4s! I'm going crazy! ;)

But thanks for the help.

[udosuk]

What Crazy Girl meant was {3,5,8} could only appear on column 5 in those 3 cells, i.e. a hidden triple. So you could eliminate all other candidates in those 3 cells, and you'll find 4 could only appear at one cell in block 8...

[SuDokuKid]

Is there a triple in row 6 with 4,6,7?

[MCC]

No.

Code: Select all

(467)(8)(469) | (3)(479)(2) | (467)(5)(1)

For both a naked or a hidden triple, three cells must contain three numbers.

In the above example you have four cells containing the three numbers 467.

Code: Select all

(467)-(469) | -(479)- | (467)--

You cannot say which of the cells containing the 9 is part of the triplet, so there is no triplet.

[9X9]

SDK - Without of course meaning to, MCC is possibly still leaving you confused insofar as he omits to add that the three cells which make up a Naked or Hidden Triple don't have to each contain every candidate of the triple.

Have you visited angusj.com?

[SuDokuKid]

SDK - Without of course meaning to, MCC is possibly still leaving you confused insofar as he omits to add that the three cells which make up a Naked or Hidden Triple don't have to each contain every candidate of the triple.

Have you visited angusj.com?

I can 'see' it sometimes but can't really explain it despite everything I've read on the web.

[9X9]

SDK - nil desperandum, some aspects of sudoku logic can seem quite alien at first!

If you understand the technique (the what) but not the underlying reason (the why), don't try to "see it" but just run with it and then, at some point "as if by magic", the "why" will dawn on you. It did for me.

[SuDokuKid]

Thanks for everyone's help. True, once I saw the 4 in r7c6 I was able to figure the rest out.