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jULY 2 VH

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Marty R.

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

Posted: Thu Jul 02, 2015 5:42 am Post subject: jULY 2 VH

Code:

+-----------+----------+-------------+
| 58 7 6 | 3 12 4 | 19 25 189 |
| 29 1 29 | 8 6 5 | 3 7 4 |
| 4 3 58 | 12 9 7 | 6 25 18 |
+-----------+----------+-------------+
| 6 2 4 | 17 3 9 | 5 8 17 |
| 17 8 37 | 5 12 6 | 129 4 1379 |
| 157 9 357 | 127 4 8 | 12 6 137 |
+-----------+----------+-------------+
| 3 4 1 | 6 7 2 | 8 9 5 |
| 27 5 27 | 9 8 3 | 4 1 6 |
| 89 6 89 | 4 5 1 | 7 3 2 |
+-----------+----------+-------------+

Play this puzzle online at the Daily Sudoku site

A two-stepper for me.

X-Wing (1)r34=>-1r56c9, r6c4

XY-Wing (12-7) pivot r6c7=>-7r4c4

I'd just as soon have more two-steppers and fewer ones.

JC Van Hay

Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

Posted: Thu Jul 02, 2015 8:49 am Post subject:

Code:

+-------------+--------------+-----------------+
| 58 7 6 | 3 12 4 | 9-1 25 189 |
| 29 1 29 | 8 6 5 | 3 7 4 |
| 4 3 58 | (12) 9 7 | 6 25 8(1) |
+-------------+--------------+-----------------+
| 6 2 4 | 17 3 9 | 5 8 7-1 |
| 17 8 37 | 5 12 6 | 129 4 379-1 |
| 157 9 357 | 17(2) 4 8 | (12) 6 37-1 |
+-------------+--------------+-----------------+
| 3 4 1 | 6 7 2 | 8 9 5 |
| 27 5 27 | 9 8 3 | 4 1 6 |
| 89 6 89 | 4 5 1 | 7 3 2 |
+-------------+--------------+-----------------+
M-Wing : [(1=2)r6c7-2r6c4=(2-1)r3c4=1r4c9]-1r1c7,r456c9; stte

George Woods

Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK

Posted: Thu Jul 02, 2015 8:57 pm Post subject: showing my ignorance

I solved it by looking at r6c7. whether it is 1 0r 2 we find r5c5 becomes 2. Check by postuulating r5c5 is 1 and v quickly boxes 5 and 6 show it is no good so r5c5 must be 2. Maybe this is the M Wing but I am not conversant with it to know!

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