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Sep 01 VH

 
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dongrave



Joined: 06 Mar 2014
Posts: 377

PostPosted: Wed Sep 02, 2020 11:10 am    Post subject: Sep 01 VH Reply with quote

Code:
+--------------+-------------+---------------+
| 4   1278 128 | 9   17  3   | 168 5    1267 |
| 9   17   6   | 2   5   8   | 4   37   137  |
| 5   3    128 | 6   17  4   | 189 2789 1279 |
+--------------+-------------+---------------+
| 8   9    5   | 4   26  1   | 7   23   236  |
| 26  4    3   | 8   269 7   | 5   1    269  |
| 126 12   7   | 3   269 5   | 69  4    8    |
+--------------+-------------+---------------+
| 12  5    128 | 7   38  9   | 138 6    4    |
| 3   18   9   | 5   4   6   | 2   78   17   |
| 7   6    4   | 1   38  2   | 389 89   5    |
+--------------+-------------+---------------+

It took me 3 VH steps. The 1 X Wing in rows 2 and 8 (-1r1c29, -1r3c9, and -1r6c2), the 137 XYZ Wing with pivot at r2c9 (-7r13c9), and then finally the 78-1 XY Wing with pivot at r1c2 (-1r3c5) (or for the 3rd step the 18-7 X Wing with pivot at r1c7 (-7r2c2) ). The 1st steps 2 can be performed in either order. I also noticed a couple different XY Wings depending on the order of the 1st 2 steps performed but it didn't look like it would save any steps.
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