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Puzzle 10/03/01 (A)

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Mon Mar 01, 2010 6:47 pm Post subject: Puzzle 10/03/01 (A)

Code:

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

Play this puzzle online at the Daily Sudoku site

tlanglet

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

Posted: Tue Mar 02, 2010 2:15 pm Post subject:

Two VH+ steps.

Quote:

xy-wing -456 with vertex in r7c3,
xyz-wing 2-47 in r1c6.

Ted

daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Fri Mar 05, 2010 6:47 pm Post subject:

My solver's VH solution is longer than Ted's VH+ solution. (I like Ted's better.)

Code:

r57 X-Wing <> 7 r29c4,r246c9

<56+4> XY-Wing r7c3/r2c3+r8c2 <> 4 r13c2,r9c3

c58 X-Wing <> 4 r1c6,r6c9

<27+4> XY-Wing r1c6/r1c5+r8c6 <> 4 r3c6

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