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immpy
Joined: 06 May 2017 Posts: 571
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Posted: Tue Aug 01, 2017 4:59 pm Post subject: VH+080117 |
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This one was interesting....enjoy.
Code: |
+-------+-------+-------+
| 4 6 . | . . . | . . . |
| . . 9 | 1 . 3 | 6 . . |
| . . 5 | . . 6 | . 4 . |
+-------+-------+-------+
| . . 3 | 6 . . | . 1 . |
| . 7 . | . 2 . | . 8 . |
| . 5 . | . . 7 | 9 . . |
+-------+-------+-------+
| . 4 . | 5 . . | 8 . . |
| . . 6 | 8 . 9 | 1 . . |
| . . . | . . . | . 3 5 |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site |
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JC Van Hay
Joined: 13 Jun 2010 Posts: 494 Location: Charleroi, Belgium
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Posted: Tue Aug 01, 2017 7:01 pm Post subject: |
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Code: | +---------------------+---------------------+------------------+
| 4 6 128 | 279 5789 258 | 3 279 1289 |
| 7 28 9 | 1 4 3 | 6 5 28 |
| 1238 28-3(1) 5 | 279 789 6 | 27 4 1289 |
+---------------------+---------------------+------------------+
| 289 28(9) 3 | 6 58(9) 458 | 45 1 7 |
| 69 7 14 | (39) 2 145 | 45 8 36 |
| 168 5 148 | (34) 18 7 | 9 26 236 |
+---------------------+---------------------+------------------+
| 123 4 127 | 5 137 12 | 8 69 69 |
| 5 (23) 6 | 8 37 9 | 1 7(2) 4 |
| 1289 28(19) 1278 | 27(4) 6 (124) | 7(2) 3 5 |
+---------------------+---------------------+------------------+
3r8c2 2r8c2
2r8c8 2r9c7
2r9c6 1r9c6 4r9c6
4r9c4 4r6c4
3r6c4 3r5c4
9r5c4 9r4c5
9r9c2 9r4c2
1r9c2 1r3c2-> [3r8c2==1r3c2] => -3r3c2; stte |
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Ajò Dimonios
Joined: 01 May 2017 Posts: 339 Location: Sassari Italy
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Posted: Wed Aug 02, 2017 1:31 pm Post subject: |
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Hi everyone
Code: |
+-----------------+--------------+------------------+
| 4 6 1278 | 279 5789 258 | 3 2579 123789 |
| 7 28 9 | 1 4 3 | 6 5 278 |
| 12378 1238 5 | 279 789 6 | 27 4 123789 |
+-----------------+--------------+------------------+
| 289 289 3 | 6 4589 458 | 2457 1 7 |
| 169 7 14 | 349 2 145 | 345 8 346 |
| 1268 5 1248 | 34 138 7 | 9 26 236 |
+-----------------+--------------+------------------+
| 12379 4 127 | 5 137 12 | 8 2679 269 |
| 5 23 6 | 8 37 9 | 1 27 4 |
| 12789 1289 1278 | 247 6 124 | 27 3 5 |
+-----------------+--------------+------------------+
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Play this puzzle online at the Daily Sudoku site
My solution with one step after basics
[(7)R3C7-(7=2)R9C7-(2)R9C4C6=(2)R7C6-(2)R7C3;
(7)R3C7-(7)R9C7=(7)R8C8-(7=3)R8C5-(3)R8C2=(3-1)R3C2=(1)R9C2-(1=7)R7C3;
(7)R3C7-(7)R9C7=(7)R8C8-(7=3)R8C5-(3)R7C5;
(7)R3C7-(7)R9C7=(7-2)R8C8=(2-3)R8C2=(3-1)R3C2=(1)R9C2-(1)R9C6=(247)R9C467-(2=1)R7C6-(1=7)R7C5;]=>contradiction two 7 in line 7 (R7C3, R7C5)=>-7R3C7=> solution stte.
Ciao a Tutti
Paolo |
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JC Van Hay
Joined: 13 Jun 2010 Posts: 494 Location: Charleroi, Belgium
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Posted: Wed Aug 02, 2017 3:12 pm Post subject: |
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Hi Paolo,
"...=(247)R9C467-(2=1)R7C6-(1=7)R7C5 ..." ???
JC |
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Ajò Dimonios
Joined: 01 May 2017 Posts: 339 Location: Sassari Italy
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Posted: Wed Aug 02, 2017 8:11 pm Post subject: |
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Hi everyone
Sorry I made a mistake in the last chain.
You can replace the last two chains with
(7)R3C7-(7)R1C8=(7)R8C8-(7=3)R8C5-(3=2)R8C2-(2)R234C2=(2)R4C1-(2)R3C1=(2)R1C3-(2)R1C48=(9)R1C8-(9)R1C4=(7)R1C4-(7) R9C4=(7)R7C5;
that together with the first two chains
(7)R3C7-(7=2)R9C7-(2)R9C4C6=(2)R7C6-(2)R7C3;
(7)R3C7-(7)R9C7=(7)R8C8-(7=3)R8C5-(3)R8C2=(3-1)R3C2=(1)R9C2-(1=7)R7C3; =>-7R3C7=> solution stte.
Ciao a Tutti
Paolo |
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