Timer
00:00:00
Start Pause Reset
8 Comments Previous / NextHelp

Tough Sudoku for 16/September/2019

                 
                 
                 
                 
                 
                 
                 
                 
                 

Choose a number, and place it in the grid above.

  1 2 3 4 5 6 7 8 9
Check out the latest post in the Sudoku Forum

Welcome to the Sudoku Forums!

Submitted by: Gath

Indicate which comments you would like to be able to see

1. Unique possibilities to 29.
2. Whether e1=2,gi1=5;OR d1=2,i1=1;i2=7.UP32.
3. Whether e3=9,e1=7;OR f3=9,f89=2 (or else 18UR @ af89);d1=2.UP81.
16/Sep/19 1:28 AM
Basics to 29
1. Kraken cell (1289)f9 => -1i9 ; UP = 81
|| (18)af9
|| (2)f9 - f5 = e5 - e1 = (2-1)d1 = (1)i1
|| (9)f9 - (9=61)fd3 - (1)h3 = (1)i1
16/Sep/19 2:13 AM
Using Alfred's UR (18)af89, with guardians (2)f89 and (9)f89:
1. (2=169)d1.df3 - (9)f89 == (2)f89 - f5 = (2)e5 => -2e1 ; UP = 81
16/Sep/19 2:36 AM
Gumnut? Someone who chews gum?
16/Sep/19 3:49 AM
Gumnut Babies were invented by Australian author of children's books, May Gibbs. (See Wikipedia).
16/Sep/19 7:13 AM
Basics to 29
1. if i1=7 OR i1=5 => UR 38 bg13 OR c1=0
h3=d1=1 d7=2 b7=7 d3=6 f3=9 e3=7
=> g1=5 i2=7 basics to 35
2.XY-chain 1238 [d1,g7,g3,i1] => d7<>2 => d1=2 solve
16/Sep/19 4:18 PM
17:52.
16/Sep/19 10:54 PM
Alfred for the explanation of Gumnut.
17/Sep/19 4:29 AM
Please Log in to post a comment.

Not a member? Joining is quick and free. As a member you get heaps of benefits.

Join Now Login