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Puzzle 10/01/12 (A)

dailysudoku.com Forum Index -> Puzzles by daj

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Tue Jan 12, 2010 6:29 pm Post subject: Puzzle 10/01/12 (A)

4-stepper VH+

Code:

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

Play this puzzle online at the Daily Sudoku site

arkietech

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

Posted: Tue Jan 12, 2010 11:20 pm Post subject:

I needed three steps:

Quote:

w-wing 59
turbot 9
skyscraper 2

tlanglet

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

Posted: Wed Jan 13, 2010 1:27 am Post subject:

I used four steps.

Quote:

m-wing: (9=5)r2c5 - (5=9)r2c8 - (9)r7c8 = (9)r9c9; r9c5<>9,
xy-wing -259 with vertex in r2c5
UR27[(5)r89c6 = (9)r9c6]r89c26 - (9=4)r7c6 - (49=8)r7c4 - (8=5)r8c4; r9c5<>5,
kite on 2.

Ted

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Wed Jan 13, 2010 5:38 am Post subject:

Type 4 UR on 27 and two ERs, both on 2.

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