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Too Hard 030918

 
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immpy



Joined: 06 May 2017
Posts: 340

PostPosted: Fri Mar 09, 2018 1:21 pm    Post subject: Too Hard 030918 Reply with quote

Rated too hard on the Draw/Play...this one was pretty cool.
Enjoy everyone...


Code:

+-------+-------+-------+
| 5 . . | . . 8 | 3 . 4 |
| . . . | . . . | . . . |
| . . . | 2 3 7 | 8 . . |
+-------+-------+-------+
| . 2 . | 7 6 . | 5 . 3 |
| . . 7 | . . . | 9 . . |
| 3 . 1 | . 4 5 | . 6 . |
+-------+-------+-------+
| . . 5 | 1 7 3 | . . . |
| . . . | . . . | . . . |
| 1 . 4 | 5 . . | . . 7 |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

cheers...immpy
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AjÚ Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy

PostPosted: Fri Mar 09, 2018 4:14 pm    Post subject: Reply with quote

Hi everyone



Code:

+---------------+--------------+---------------+
| 5   17    2   | 6   19  8    | 3  79    4    |
| 78  1378  38  | 49  5   149  | 26 279   69   |
| 9   4     6   | 2   3   7    | 8  15    15   |
+---------------+--------------+---------------+
| 4   2     89  | 7   6   19   | 5  18    3    |
| 6   5     7   | 3   128 12   | 9  4     18   |
| 3   89    1   | 89  4   5    | 7  6     2    |
+---------------+--------------+---------------+
| 28  689   5   | 1   7   3    | 4  289   689  |
| 278 36789 389 | 489 289 2469 | 1  23589 5689 |
| 1   3689  4   | 5   289 269  | 26 2389  7    |
+---------------+--------------+---------------+

Play this puzzle online at the Daily Sudoku site


[1R4C6-(1=8)R4C8-8R5C9=8R5C5-8R89C5=8R8C4-8R8C3 ;(1-9)R4C6=(9-8)R4C3=8R2C2-8R2C1 and 1R4C6-1R2C6=1R1C5-(1=7)R1C2-(7=8)R2C1]=>contradiction (when the 1 at R4C6 is true, the 8 at R2C1 is both true and false, so 1 must be false)=>-1R4C6=>stte.

Ciao a Tutti
Paolo
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immpy



Joined: 06 May 2017
Posts: 340

PostPosted: Sat Mar 10, 2018 2:05 pm    Post subject: Reply with quote

I played a 2-string Kite on 9 (strung from b4) with tails (pincers) @ r6c4 and r8c3. Thus, r8c4<>9.
Followed with a W-wing (19) on 1 connected by 9 in b25. Thus, r2c6<>1 and r5c5<>1. stte

cheers all...immp
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