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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Mon Apr 22, 2013 4:31 am Post subject: Impossible Menneske No. 15 |
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Wow! Look at the rating!
Code: | M6903693 Impossible (11703)
+-------+-------+-------+
| . . 5 | . . . | . 6 . |
| 4 . . | . 3 . | . . . |
| . 3 . | 7 . . | 9 . . |
+-------+-------+-------+
| 6 . . | 9 . . | . . . |
| . . 3 | . . . | . 2 1 |
| . 8 . | . . . | . . 5 |
+-------+-------+-------+
| . . 1 | 8 . . | . . . |
| . . . | . 4 1 | . . . |
| . 7 . | . . . | 2 . . |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site
Keith |
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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Mon Apr 22, 2013 12:14 pm Post subject: |
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Code: | Skyscraper on 1
*-----------------------------------------------------------------------------*
| 12789 29 5 | 124 1289 2489 | 13478 6 2378 |
| 4 269 26789 | 1256 3 25689 | 1578 578 278 |
| 128 3 268 | 7 12568 24568 | 9 458 28 |
|-------------------------+-------------------------+-------------------------|
| 6 1 247 | 9 2578 234578 | 3478 3478 378 |
| 5-9 b59 3 | 46 678 4678 | 4678 2 1 |
| 27 8 247 | 12346 1267 23467 | 3467 9 5 |
|-------------------------+-------------------------+-------------------------|
|a29 4 1 | 8 2679 2679 | 35 35 69 |
| 2359 c256-9 c269 | 2356 4 1 | 78 78 c69 |
| 3589 7 689 | 356 569 3569 | 2 1 4 |
*-----------------------------------------------------------------------------*
als xy-wing
(9=2)r7c1-(2=5)r8c239-(5=9)r5c2 => -9r8c2,r5c1
*-----------------------------------------------------------------------------*
|a79 2 5 | 14 189 489 | 13478 6 378 |
| 4 6 g9-7 |e125 3 f2589 | 1578 578 78 |
| 1 3 8 | 7 56 456 | 9 45 2 |
|-------------------------+-------------------------+-------------------------|
| 6 1 247 | 9 2578 234578 | 3478 3478 378 |
| 5 9 3 | 46 678 4678 | 4678 2 1 |
| 27 8 247 | 12346 1267 23467 | 3467 9 5 |
|-------------------------+-------------------------+-------------------------|
|b29 4 1 | 8 2679 2679 | 35 35 69 |
| 3 5 c269 |d26 4 1 | 78 78 69 |
| 8 7 69 | 356 569 3569 | 2 1 4 |
*-----------------------------------------------------------------------------*
(7=9)r1c1-(9=2)r7c1-r8c3=r8c4-r2c4=(2-9)r2c6=(9-7)r2c3 => -7r2c3; ste |
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JC Van Hay
Joined: 13 Jun 2010 Posts: 494 Location: Charleroi, Belgium
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Posted: Mon Apr 22, 2013 5:26 pm Post subject: |
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#1. r9c8=1, r6c8=9
FinnedXWing(1R36) :=> r4c2=1; LC(5,6,7)
HP(59)r5c12; r7c2=4=r9c9; NP(35)r7c78; NP(78)r8c78
Code: | +--------------------------+-----------------------+----------------------+
| 1289(7) (29) 5 | 124 1289 2489 | 13478 6 2378 |
| 4 (269) 2689(7) | (1256) 3 25689 | (1578) (578) (278) |
| 128 3 (268) | 7 12568 24568 | 9 458 (28) |
+--------------------------+-----------------------+----------------------+
| 6 1 247 | 9 2578 234578 | 3478 3478 378 |
| 59 (59) 3 | 46 678 4678 | 4678 2 1 |
| (27) 8 247 | 12346 1267 23467 | 3467 9 5 |
+--------------------------+-----------------------+----------------------+
| 9-2 4 1 | 8 2679 2679 | 35 35 69 |
| 9(235) 69(25) 69(2) | 6(235) 4 1 | 78 78 69 |
| 3589 7 689 | 356 569 3569 | 2 1 4 |
+--------------------------+-----------------------+----------------------+
#2. Chain[14] : (125678)r2c4789 -> 2r6c1=2r8c123 :=> -2r7c1;ste
1578r2c4789-7r2c3=7r1c1-(7=2)r6c1
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2r2c4-2r8c4=2r8c123
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6r2c4-(6=259)r125c2-------------------------5r8c2=HP(35-2)r8c14=2r8c23
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2r2c9-(2=8)r3c9-(8=269)r3c3.r12c2-(9=5)r5c2-5r8c2=HP(35-2)r8c14=2r8c23 |
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