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Puzzle 10/10/13: B XY

dailysudoku.com Forum Index -> Puzzles by daj

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Wed Oct 13, 2010 4:19 am Post subject: Puzzle 10/10/13: B XY

Code:

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

Play this puzzle online at the Daily Sudoku site

tlanglet

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

Posted: Wed Oct 13, 2010 2:47 pm Post subject:

Two steps......

Quote:

xy-wing 1-37 vertex (17)r8c9 pseudocell (13)r29c8; r1c9,r45c8<>3
coloring 6

Ted

peterj

Joined: 26 Mar 2010
Posts: 974
Location: London, UK

Posted: Wed Oct 13, 2010 9:03 pm Post subject:

Two steps also..

Quote:

m-wing(18) ; (8=1)r9c8 - r5c8=(1-8)r5c9=r3c9 ; r2c8<>8
remote pair(67) r6c1, r8c5 ; r8c1<>6

Marty R.

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

Posted: Thu Oct 14, 2010 10:29 pm Post subject:

Four steps. XY-Chain Multi-coloring (3) XYZ-Wing (178) Remote pairs (67)

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