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Puzzle NR 09/12/13 (B)

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Sun Dec 13, 2009 5:25 pm Post subject: Puzzle NR 09/12/13 (B)

Code:

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

Play this puzzle online at the Daily Sudoku site

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Sun Dec 13, 2009 7:52 pm Post subject:

After basics and ur 78

Code:

*--------------------------------------------------------------------*
| 4 8 13-9 | 3679 367 5 | 679 2 1679 |
| 7 5 1-9 | 4 2 69 | 3 8 169 |
|*369 #369 2 |*379 8 1 | 4 79 5 |
|----------------------+----------------------+----------------------|
| 369 4 7 | 8 356 36 | 1 3569 2 |
| 36 136 5 | 1367 9 2 | 8 367 4 |
| 2 1369 8 | 1367 3567 4 | 679 35679 3679 |
|----------------------+----------------------+----------------------|
| 8 7 6 | 5 4 39 | 2 1 39 |
| 1 2 *39 |*369 36 7 | 5 4 8 |
| 5 39 4 | 2 1 8 | 679 3679 369 |
*--------------------------------------------------------------------*

is there such a thing as a finned skyscraper?

daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Sun Dec 13, 2009 9:19 pm Post subject:

arkietech wrote:

After basics and ur 78

Code:

is there such a thing as a finned skyscraper?

First: there's a <9> in r3c8 that ruins your pattern. Now, back to your question in general.

Skyscraper pattern with four potential eliminations ... or ... 2x Sashimi X-Wing (with one fin cell) and two potential eliminations (each).

Code:

Skyscraper r25c8 => r13c3,r46c1<>X
-or-
Sashimi X-Wing r25\c18 w/fin r5c3 => r46c1<>X
Sashimi X-Wing r25\c38 w/fin r2c1 => r13c3<>X
+-----------------------------------+
| . . -x | . . . | . . . |
| X / / | / / / | / X / |
| . . -x | . . . | . . . |
|-----------+-----------+-----------|
| -x . . | . . . | . . . |
| / / X | / / / | / X / |
| -x . . | . . . | . . . |
|-----------+-----------+-----------|
| . . . | . . . | . . . |
| . . . | . . . | . . . |
| . . . | . . . | . . . |
+-----------------------------------+

Now, a finned Skyscraper is just a single Sashimi X-Wing with two fin cells.

Code:

Sashimi X-Wing r25\c38 w/fins r2c12 => r13c3<>X
+-----------------------------------+
| . . -x | . . . | . . . |
| X X / | / / / | / X / |
| . . -x | . . . | . . . |
|-----------+-----------+-----------|
| . . . | . . . | . . . |
| / / X | / / / | / X / |
| . . . | . . . | . . . |
|-----------+-----------+-----------|
| . . . | . . . | . . . |
| . . . | . . . | . . . |
| . . . | . . . | . . . |
+-----------------------------------+

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Mon Dec 14, 2009 2:08 pm Post subject:

Three steps.

Quote:

type 1 UR 78,
ER 9 with pivot in box2,
Kraken x-wing 9 in r18c34 and fin in r1c7.

Ted

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