The New Sudoku Players' Forum

by **wapati** » Wed Jan 10, 2007 7:00 am

Quite some variety.

Marvin is your server tonight.

Code: Select all: . 3 .|. . .|4 2 . 6 . .|5 4 .|. . 1 . . 1|. 3 .|. . 8 -----+-----+----- . 8 .|. 7 4|. . . . 5 7|9 . 1|6 4 . . . .|2 6 .|. 8 . -----+-----+----- 3 . .|. 2 .|1 . . 5 . .|. 9 3|. . 2 . 6 2|. . .|. 3 .

Unless you never hitch-hike?

by **wapati** » Wed Jan 10, 2007 7:08 am

Whoa Silver....

No big fish here, or I missed 'em 'cause too many small patterns :!:

Code: Select all: . . . | . . . | . 6 . . . 4 | . . . | 8 . 5 . 1 . | 8 4 . | 2 7 . --------------------- . . 3 | . 2 6 | . . . . . 2 | 3 . 8 | 5 . . . . . | 5 7 . | 6 . . --------------------- . 3 7 | . 5 9 | . 4 . 8 . 6 | . . . | 7 . . . 5 . | . . . | . . .

by **wapati** » Thu Jan 11, 2007 7:44 am

There is a lot of variety here. I didn't spot big fish tho...

Code: Select all: . . 9|3 5 .|2 . . . . .|. 7 6|1 . . 1 . .|. . .|. 3 5 -----+-----+----- 8 . .|. 9 .|. 2 . 9 3 .|7 . 2|. 1 8 . 2 .|. 8 .|. . 3 -----+-----+----- 4 9 .|. . .|. . 2 . . 2|6 3 .|. . . . . 6|. 4 9|8 . .

by **wapati** » Thu Jan 11, 2007 8:00 am

Wow.

Pretty much a braid. You would do well to know sashimi, "headless fish".

Code: Select all: . 3 4 | . . . | 5 8 . 2 . . | . . . | 6 . 3 7 . . | . . 3 | . 4 1 --------------------- . . . | . 7 4 | 3 . . . . . | 9 5 2 | . . . . . 2 | 3 1 . | . . . --------------------- 8 4 . | 7 . . | . . 2 6 . 5 | . . . | . . 4 . 2 3 | . . . | 7 6 .

by **wapati** » Thu Jan 11, 2007 8:13 am

Whew.

Code: Select all: . . .|2 6 .|. . 1 . 6 .|8 . .|. . . . . 8|. 4 7|3 . . -----+-----+----- 8 3 .|9 . .|6 . . 7 . 1|. . .|8 . 4 . . 6|. . 2|. 7 3 -----+-----+----- . . 4|6 9 .|7 . . . . .|. . 5|. 4 . 6 . .|. 1 8|. . .

by **wapati** » Thu Jan 11, 2007 9:08 am

Swordfish, pretty sure.

This one is a coffee cup shredded by a shotgun.
So many pieces!

Code: Select all: 4 . . | . . 2 | 1 . 9 . . . | 6 . . | 7 4 . . . . | . 4 . | . 3 2 --------------------- . 4 . | . 5 6 | . . 7 . . 7 | 1 . 4 | 3 . . 6 . . | 3 7 . | . 2 . --------------------- 8 6 . | . 2 . | . . . . 1 4 | . . 5 | . . . 2 . 3 | 4 . . | . . 8

by **daj95376** » Thu Jan 11, 2007 5:49 pm

wapati wrote:Swordfish, pretty sure.

This one is a coffee cup shredded by a shotgun.
So many pieces!

Code: Select all
4 . . | . . 2 | 1 . 9 . . . | 6 . . | 7 4 . . . . | . 4 . | . 3 2 --------------------- . 4 . | . 5 6 | . . 7 . . 7 | 1 . 4 | 3 . . 6 . . | 3 7 . | . 2 . --------------------- 8 6 . | . 2 . | . . . . 1 4 | . . 5 | . . . 2 . 3 | 4 . . | . . 8

wapati: A fun puzzle.

Code: Select all: # after SSTS: an assignment => four eliminations in <7> # # G B G !G G !G G B # X-Colors: (7) [r9c2]-[r8c1]=[r3c1]-[r3c46]=[r1c4]-[r78c4]=[r9c7] => [r8c1]=7 # note: bi-directional, but not with same grouped conjugate links *-----------------------------------------------------------* | 4 3578 568 |G578 38 2 | 1 68 9 | | 19 389 2 | 6 1389 189 | 7 4 5 | |G1579 5789 5689 | 5789 4 1789 | 68 3 2 | |-------------------+-------------------+-------------------| | 3 4 189 | 2 5 6 | 89 189 7 | | 59 2 7 | 1 89 4 | 3 589 6 | | 6 589 1589 | 3 7 89 | 4589 2 14 | |-------------------+-------------------+-------------------| | 8 6 59 | 79 2 3 | 459 1579 14 | |B7-9 1 4 | 789 689 5 | 2 679 3 | | 2 G579 3 | 4 169 G179 | 569 5679 8 | *-----------------------------------------------------------*

Code: Select all: # later: an assignment => three eliminations in <8> # # G B G !G G !G G !G G B # X-Colors: (8) [r6c6]-[r5c5]=[r5c8]-[r1c8]=[r3c8]-[r3c23]=[r1c3]-[r46c3]=[r6c2] => [r5c5]=8 # note: bi-directional, but not with same grouped conjugate links *-----------------------------------------------------------* | 4 57 G68 | 57 3 2 | 1 68 9 | | 19 3 2 | 6 189 189 | 7 4 5 | | 159 5789 5689 | 579 4 179 |G68 3 2 | |-------------------+-------------------+-------------------| | 3 4 189 | 2 5 6 | 89 189 7 | | 59 2 7 | 1 B8-9 4 | 3 G589 6 | | 6 G589 1589 | 3 7 G89 | 4589 2 14 | |-------------------+-------------------+-------------------| | 8 6 59 | 79 2 3 | 459 1579 14 | | 7 1 4 | 8 69 5 | 2 69 3 | | 2 59 3 | 4 169 179 | 569 5679 8 | *-----------------------------------------------------------*

Code: Select all: # later: Swordfish in <9>, Colors on <9>, and 2x XY-Wing

by **wapati** » Fri Jan 12, 2007 6:46 am

daj95376 wrote:later: Swordfish in <9>, Colors on <9>, and 2x XY-Wing

Glad you found the swordfish too. So many pop-up and get squashed by other patterns.

by **wapati** » Sat Jan 13, 2007 5:24 am

This one has many "potential" big fish.
Jelly, Sashimi Jelly and Sashimi Sworfish.

All there, not at the same time. Sad to say that the Sashimi-Swordfish is a methot that just solves the whole thing, so look for it last.

SE sees the SS pattern as a forcing chain. (Forcing-x chain? I forget.)

Code: Select all: 6 7 . | . . . | 5 4 . 1 . 3 | 8 . . | . . 7 . 5 . | . 4 . | . . 3 --------------------- . 8 . | . 1 . | . . . . . 5 | 9 . 4 | 7 . . . . . | . 2 . | . 5 . --------------------- 5 . . | . 6 . | . 7 . 7 . . | . . 1 | 9 . 5 . 3 6 | . . . | . 1 4

by **daj95376** » Sat Jan 13, 2007 8:27 am

wapati wrote:This one has many "potential" big fish.

Yes, while <8> gets all the attention, no one is going to give any respect to the finned X-Wing in <2> since it doesn't help the solution.

by **wapati** » Sun Jan 14, 2007 6:55 am

Whew. Pattern overload.

I didn't see swords or jellies. Way many smaller patterns.

Code: Select all: . 4 .|9 . .|. 1 5 9 1 .|. 8 .|. . 4 . . .|. . 2|. . . -----+-----+----- 4 . .|. 7 .|1 . . . 5 .|2 . 9|. 8 . . . 9|. 4 .|. . 2 -----+-----+----- . . .|1 . .|. . . 6 . .|. 9 .|. 5 3 2 9 .|. . 8|. 4 .

by **wapati** » Sun Jan 14, 2007 6:59 am

This is advanced pattern stuff.

You shall be busy!

Code: Select all: . . 2 | 4 . . | . 8 . . . . | . . 9 | . . 2 9 . . | 5 . . | 1 . . --------------------- 8 . 5 | . 1 . | . 7 . . . . | 6 . 4 | . . . . 9 . | . 8 . | 3 . 6 --------------------- . . 3 | . . 2 | . . 9 1 . . | 3 . . | . . . . 2 . | . . 6 | 4 . .

by **claudiarabia** » Sun Jan 14, 2007 6:55 pm

Code: Select all: 3 . 9 . . 8 7 . . . 2 . 5 . . . 4 . 4 . . . . . 2 . 1 . . . 9 . 3 8 . . . 4 . . . . . . . . . . 8 5 . . 2 . . . . . . 7 3 . . . 5 . 4 . . . 6 . . 9 6 . . . . . .

I was very happy to produce a puzzle with an WXYZ-Wing without forcing chains. This is the first wxyz-wing I saw without the value to eliminate being in the center-cell (r3c4), which allows this wing to eliminate in remote boxes.

Claudia

by **claudiarabia** » Mon Jan 15, 2007 2:43 am

Code: Select all: . . . . . . . . . . . 2 . 8 6 3 . . . 9 3 7 . 5 . 1 . . 7 . . . . 1 4 . . 5 . . 4 . . 2 . . 4 6 . . . . 8 . . 8 . 9 . 3 2 7 . . . 4 2 1 . 9 . . . . . . . . . . .

by **wapati** » Mon Jan 15, 2007 7:24 am

claudiarabia wrote:I was very happy to produce a puzzle with an WXYZ-Wing without forcing chains. This is the first wxyz-wing I saw without the value to eliminate being in the center-cell (r3c4), which allows this wing to eliminate in remote boxes.

Claudia

I cannot find a WXYZ wing, could you post a "candidates" picture of it please?

(I am not known for spotting techniques new to myself.) <blush>

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WXYZ-Wing, Turbot fish, Bug2

A triplet leads straight to BUG Typ 1

Re: WXYZ-Wing, Turbot fish, Bug2