summary: A 16x16 grid sudoku puzzle - #2 - very difficult.

 solve

 sudoku

   16x16 supersu puzzle #2 set by bill purvis.                    to the solution >
   
  <home               go here for a printable version >           to 16x16 puzzle #1> & #3

supersu #2
c1
c2
c3
c4
  
c5
c6
c7
c8
  
c9
c10
c11
c12
  
c13
c14
c15
c16
  
 
13
  
  
   
  
  
4 		   
2 		 
  
 


11
7
r1
 box

1
2
3
&
4
 
15 		box 1
16

 
box 2 
7

8 		 
box 3 
12

13 		 
box 4
6
3
r2
 
  
5
7 		 
9
2

 
15
11

 

16
14
r3
 
10
2
11 		 



 


5
7 		 



r4

 
12
1

 


8
 
4

11
16 		 



r5
 box

5
6
7
&
8
 
 box 5

 
box 6
16
 
box 7
5
7
8 		 
box 8
15

9
r6


2
11
 

6
9
 

13

15 		 
14
10

r7
 
14 		 
  
10 		 
  
1 		 
  
5 		 
7 		   
6 		 
9 		 
  
  

8
12 		r8

1
7

 


6
5 		 
12
10

11 		 

8
9
14
r9
 box

9
10
11
&
12

box 9
16
15 		 
11 		box 10
7
 
box 11
2
9
 
box 12
4

r10
 
6

12
 
14


10
 

8

 



r11




 
8
12

16 		 

15

 

1
6
13 		r12




 
13
10

 



 
3
7
12
r13 box

13
14
15
&
16

box 13
5
15
 
box 14

1 		 
box 15
6
12 		 
10 		box 16
14

r14


9
7
 
16

4
 
13

15
 


5
6 		r15

2
13

 



6 		 
8


 



16 		r16


first posted 31st August 2005

These are the solvers in the order received - congratulations to you all. The solution will be published in a few weeks, after which no more names will be added to the list. Alan Guard was first to reply - 5 days after the puzzle was published. Remarkable!    ** rw 12th. September 05 **

Alan Guard, Weston-Super-Mare • Lydia Escobar-Blanco • Darie Cheung • Alison Elkin • Ian Gorton • Lawrence Mui • Matt Caddick • Angela Ash • Wes Cheng • John Ullyatt • Theresa O'Rourke • Karin Olsson • John Mustard • Martin Skidmore • Karen Hopa • Tsehaia • Jim Stevenson • Larry Acton • Brian Weischedel • Rumpa Biswas • Kelly Richardson • Walt Bell, Pleasanton, CA • Gaetano Genovese, Milan •



___________________________________


15th january 2010 © 2014

© roger walker 2005