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ZeroAssoluto
Joined: 05 Feb 2017
Posts: 941
Location: Rimini, Italy
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 Posted: Wed Sep 20, 2017 10:15 pm Post subject: Sep 21 VH |
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Hi everyone,
| Code: |
+----------+----------+------------+
| 38 78 1 | 9 23 27 | 5 4 6 |
| 6 4 2 | 5 1 8 | 9 7 3 |
| 39 5 79 | 4 36 67 | 2 1 8 |
+----------+----------+------------+
| 18 9 6 | 2 5 4 | 1378 38 17 |
| 7 3 5 | 8 9 1 | 4 6 2 |
| 2 18 4 | 6 7 3 | 18 5 9 |
+----------+----------+------------+
| 5 6 8 | 7 24 9 | 13 23 14 |
| 4 2 3 | 1 68 56 | 78 9 57 |
| 19 17 79 | 3 248 25 | 6 28 45 |
+----------+----------+------------+
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Play this puzzle online at the Daily Sudoku site
| Quote: | XY-Wing 1,3,8 in r4c8,r67c7 and -3 in r4c7,r7c8
or
XY-Wing 1,7,8 in r4c9,r68c7 and -7 in r4c7,r8c9
or
XY-Wing 2,4,5 in r7c5,r9c69 and -4 in r7c9,r9c5
or
XYZ-Wing 2,4,8 in r79c5,r9c8 and -2 in r9c6 |
Ciao Gianni |
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Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
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| Posted: Thu Sep 21, 2017 9:11 am Post subject: |
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Hi everyone
[(1)R4C9-(1=8)R6C7 and (1-7)R4C9=(7)R8C9-(7=8)R8C7=>contradiction two singles 8 in column 7=>-1R4C9=>stte.
Ciao a Tutti
Paolo |
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