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Tough Sudoku for 16/September/2023

                 
                 
                 
                 
                 
                 
                 
                 
                 

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serban  From cluj
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Basics to 29
1. Box 3 abc123 n=4 e=5 Nc=10 Ns=3 => c2=2 solve
16/Sep/23 2:05 AM
   Sarah  From DC, the last colony
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MMMyummy, not.
16/Sep/23 1:50 PM
rwm  From New Mexico USA
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Basics to 29
1. (5=3)b7 - f7 = (3-2)f2 = d1 - b1 = (2)b5 => -5b5 ; UP = 33
2. (5)a5 = a4 - e4 = (59-3)e68 = f7 - (3=9)a7 => -9a5 ; UP = 35
3. (1)d7 = (1-3)f7 = (3-2)f2 = (2)f1 => -1d1
4. (2=7)d1 - d4 = (7-5)e4 = a4 - (5=82)ab5 => -2b1 ; UP = 36
5. (8): gi5 = a5 - a2 = g2 => -8g46 ; UP = 38
6. (2=71)d14 - (1=82)f46 => -2f2 ; UP = 42
7. (8=3)b1 - h1 = h6 - (8=3)i6 => -8i1 ; UP = 81
16/Sep/23 11:33 PM
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