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ZeroAssoluto
Joined: 05 Feb 2017
Posts: 1019
Location: Rimini, Italy
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 Posted: Sun Jul 16, 2017 10:22 pm Post subject: Jul 17 VH |
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Hi everyone,
| Code: |
+-------------+------------+--------+
| 7 8 145 | 3 145 15 | 2 6 9 |
| 6 12 14 | 7 149 129 | 8 3 5 |
| 3 25 9 | 25 6 8 | 1 4 7 |
+-------------+------------+--------+
| 29 59 8 | 25 7 4 | 3 1 6 |
| 4 3 15 | 9 15 6 | 7 2 8 |
| 12 6 7 | 8 3 12 | 5 9 4 |
+-------------+------------+--------+
| 8 79 3 | 4 2 79 | 6 5 1 |
| 19 1479 2 | 6 59 579 | 49 8 3 |
| 5 49 6 | 1 8 3 | 49 7 2 |
+-------------+------------+--------+
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Play this puzzle online at the Daily Sudoku site
Some of the options to choose from
| Quote: | XY-Wing 1,2,5 in r1c6, r6c6, r4c4 and -5 in r3c4.
XY-Wing 1,2,5 in r6c6, r1c6, r3c4 and -2 in r2c6 and r4c4.
W-Wing 1,5 in r1c6, r5c5 connected by number 5 in r8c56 and -1 in r1c5, r2c5, r6c6. |
Ciao Gianni |
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Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
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| Posted: Sun Jul 16, 2017 10:27 pm Post subject: |
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Hi everyone
One step solution.
Forcing chain [(1-5)R1C6=(5)R8C6-(5=9)R8C5 and (1)R1C6-(1)R6C6=(1)R6C1-(1=9)R8C1]=>contradiction, two singles 9 in line 8=>-1R1C6=>solution stte.
Ciao a tutti
Paolo |
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Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
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| Posted: Mon Jul 17, 2017 3:28 pm Post subject: |
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Hi everyone
| Code: |
+-------------+------------+--------+
| 7 8 145 | 3 145 15 | 2 6 9 |
| 6 12 14 | 7 149 129 | 8 3 5 |
| 3 25 9 | 25 6 8 | 1 4 7 |
+-------------+------------+--------+
| 29 59 8 | 25 7 4 | 3 1 6 |
| 4 3 15 | 9 15 6 | 7 2 8 |
| 12 6 7 | 8 3 12 | 5 9 4 |
+-------------+------------+--------+
| 8 79 3 | 4 2 79 | 6 5 1 |
| 19 1479 2 | 6 59 579 | 49 8 3 |
| 5 49 6 | 1 8 3 | 49 7 2 |
+-------------+------------+--------+
|
Play this puzzle online at the Daily Sudoku site
Others solutions with one step .
1) [(1-2)R2C2=(2-5)R3C2=(5)R3C4 and (1)R2C2-(1)R12C3=(1)R5C3-(1)R5C5=(1)R6C6-(1=5)R1C6]=>contradiction, two singles 5 in box 2=>-1R2C2=>solution stte.
2) [(9-2)R2C6=(2-5)R3C4=(5)R3C2 and (9)R2C6-(9)R2C5=(9-5)R8C5=(5)R5C5-(5)R4C4=(5)R4C2]=>contradiction, two singles 5 in column 2=>-9R2C6=>solution stte.
Ciao a tutti
Paolo |
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Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
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| Posted: Mon Jul 17, 2017 3:57 pm Post subject: |
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Hi everyone
| Code: |
+-------------+------------+--------+
| 7 8 145 | 3 145 15 | 2 6 9 |
| 6 12 14 | 7 149 129 | 8 3 5 |
| 3 25 9 | 25 6 8 | 1 4 7 |
+-------------+------------+--------+
| 29 59 8 | 25 7 4 | 3 1 6 |
| 4 3 15 | 9 15 6 | 7 2 8 |
| 12 6 7 | 8 3 12 | 5 9 4 |
+-------------+------------+--------+
| 8 79 3 | 4 2 79 | 6 5 1 |
| 19 1479 2 | 6 59 579 | 49 8 3 |
| 5 49 6 | 1 8 3 | 49 7 2 |
+-------------+------------+--------+
|
Play this puzzle online at the Daily Sudoku site
Others solutions with one step .
1) [(2-5)R3C2=(5)R1C3-(5=1)R1C6 and (2)R3C2-(2)R3C4=(2)R4C4-(2=1)R6C6]=>contradiction, two singles 1 in column 6=>-2R3C2=>solution stte.
2) [(2-5)R4C4=(5)R3C4-(5=1)R1C6 and (2)R4C4-(2=1)R6C6]=>contradiction, two singles 1 in column 6=>-2R4C4=>solution stte.
Ciao a tutti
Paolo |
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