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Impossible Menneske No. 14

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keith

Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

Posted: Mon Apr 22, 2013 4:26 am Post subject: Impossible Menneske No. 14

Code:

M6912405 Impossible (4409)
+-------+-------+-------+
| . . 8 | . 3 7 | . . . |
| . 5 . | . 2 . | . . 4 |
| . . . | . . . | . 6 . |
+-------+-------+-------+
| . . 4 | 2 . . | . . . |
| 1 6 . | . . . | . . 9 |
| . . . | . . 9 | 5 . . |
+-------+-------+-------+
| . . . | . . . | 3 . . |
| 3 . . | 8 1 . | . 2 . |
| . . . | . 7 . | 6 1 . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Mon Apr 22, 2013 1:28 pm Post subject:

Code:

*--------------------------------------------------------------------------------------*
| 2469 1249 8 | 1469 3 7 | 129 5 12 |
| 679 5 13679 | 169 2 168 | 1789 3789 4 |
| 2479 123479 12379 | 1459 4589 1458 | 12789 6 123 |
|----------------------------+----------------------------+----------------------------|
| 5789 3789 4 | 2 568 13568 | 178 378 136 |
| 1 6 d2357 |d3457 d458 d3458 | 278-4 d3478 9 |
|c278 c2378 c237 | 13467 468 9 | 5 c3478 1236 |
|----------------------------+----------------------------+----------------------------|
| 2456789 124789 125679 | 4569 4569 2456 | 3 b49 578 |
| 3 479 5679 | 8 1 456 |a49 2 57 |
| 24589 2489 259 | 3459 7 2345 | 6 1 58 |
*--------------------------------------------------------------------------------------*
(4=9)r8c7-(9=4)r7c8-(4=2)r6c1238-(2=4)r5c34568 => -4r5c7; lclste

JC Van Hay

Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

Posted: Mon Apr 22, 2013 5:21 pm Post subject:

Code:

+----------------------------+-------------------------+-----------------------------+
| 2469 1249 8 | 14569 3 7 | 129 59 125 |
| 679 5 13679 | 169 2 168 | 1789 3789 4 |
| 2479 123479 12379 | 1459 4589 1458 | 12789 6 123578 |
+----------------------------+-------------------------+-----------------------------+
| 5789 3789 4 | 2 568 13568 | 178 378 13678 |
| 1 6 2357 | -45(37) 458 3458 | -78(24) 3478 9 |
| 278 2378 237 | -46(137) 468 9 | 5 3478 -3678(12) |
+----------------------------+-------------------------+-----------------------------+
| 245678-9 12478-9 12567-9 | 456(9) 456(9) 2456 | 3 4578(9) 578 |
| 3 479 5679 | 8 1 456 | -7(49) 2 57 |
| 24589 2489 259 | -45(39) 7 2345 | 6 1 58 |
+----------------------------+-------------------------+-----------------------------+

#1. Loop[7] : 1r6c4=(1-2)r6c9=(2-4)r5c7=(4-9)r8c7=9r7c8-9r7c45=(9-3)r9c4=HP(37)r56c4 @ :=> r6c9=12,r5c7=24,r8c7=49,-9r7c123,r9c4=39,-456r56c4;ste

Alternatively, like dan's :

Code:

+-------------------------+-----------------------+---------------------------+
| 2469 1249 8 | 14569 3 7 | 129 59 125 |
| 679 5 13679 | 169 2 168 | 1789 3789 4 |
| 2479 123479 12379 | 1459 4589 1458 | 12789 6 123578 |
+-------------------------+-----------------------+---------------------------+
| 5789 3789 4 | 2 568 13568 | 178 378 13678 |
| 1 6 2357 | 3457 458 3458 | 78-4(2) 3478 9 |
| 278 2378 237 | 37(146) 8(46) 9 | 5 378(4) 378(126) |
+-------------------------+-----------------------+---------------------------+
| 2456789 124789 125679 | 4569 4569 2456 | 3 45789 578 |
| 3 479 5679 | 8 1 456 | 479 2 57 |
| 24589 2489 259 | 3459 7 2345 | 6 1 58 |
+-------------------------+-----------------------+---------------------------+

#1. Chain[4] : 2r5c7=HT(126-4)r6c459=4r6c8 :=> -4r5c7; 7 Singles; HP(37)r56c4 :=> r4c6=1; ste

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