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 Post subject: UTA Revisit
PostPosted: Thu Oct 15, 2020 5:18 am 
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Grand Master
Grand Master

Joined: Wed Apr 16, 2008 1:16 am
Posts: 863
Location: Sydney, Australia
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UTA.JPG
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Note: 1-9 cannot repeat on either diagonal

UTA Revisit.

The first revisit (A2x) was a stunning success so will try another. This is the next puzzle in the archive to get a rating above E1.5 and a score of 1.50+ SS gives it 1.85. JSudoku uses 5 'complex intersections' and has to grunt. The idea is to see if the new techniques we've been finding give an interesting alternative solution to the ones in the archive.
Code: Select, Copy & Paste into solver:
3x3:d:k:6913:6913:5122:5122:5122:5134:5134:5134:5134:5138:6913:6913:6913:5122:1792:1792:2320:2320:5138:4373:4373:4373:5654:5654:5654:1305:1305:5138:4373:4390:4390:6439:5941:5941:5941:5941:5915:4390:4390:6439:6439:6439:3882:5931:5941:5915:5915:5915:5915:6439:3882:3882:5931:3911:3894:3894:2362:2362:4355:4355:5931:5931:3911:1343:1343:2370:2370:5966:4355:4355:4432:3911:5704:5704:5704:5704:5966:5966:5966:4432:4432:
Solution:
+-------+-------+-------+
| 4 5 6 | 3 7 1 | 2 8 9 |
| 7 1 9 | 8 4 2 | 5 6 3 |
| 8 3 2 | 5 6 9 | 7 4 1 |
+-------+-------+-------+
| 5 7 1 | 6 9 8 | 3 2 4 |
| 9 2 8 | 7 3 4 | 1 5 6 |
| 3 6 4 | 1 2 5 | 9 7 8 |
+-------+-------+-------+
| 6 9 5 | 4 1 7 | 8 3 2 |
| 1 4 7 | 2 8 3 | 6 9 5 |
| 2 8 3 | 9 5 6 | 4 1 7 |
+-------+-------+-------+
Cheers
Ed


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