Sudoku Jigsaw Sudoku Killer Sudoku Samurai Sudoku Jigsaw Samurai Sudoku Kakuro Masyu Hitori Nurikabe Hanidoku
Sudoku Jigsaw Killer Samurai Jig Samurai Kakuro Masyu Hitori Nurikabe Hanidoku
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#873, August 20:
Competition Killer Sudoku Puzzle - Tough level of difficulty

PRINTABLE VERSION: CLICK HERE FOR BLACK AND WHITE - HERE FOR COLOUR

11 11   20 6 21 11   16
            14    
15   14 5         6
10 13   29 14     10  
            19   9
12   11            
  23   14 13     4  
6 11     11 11   22 13
                 
Mondays are Diabolical!
Tuesdays are Tough
Wednesdays are Tough - Today!
Thursdays are Moderate
Fridays are Moderate
Saturdays are Gentle
Sundays are Gentle

Cage Combinations


Killer Sudoku is a fiendish variant of Sudoku - the same 9 x 9 board with rows, columns and nine boxes that must be filled in with all the numbers 1 to 9. But instead of seeing some starter clues where some cells are completed for you, in killer sudoku areas of the grid are "caged". Each cage contains a single number which is the sum of all the solutions in that shape. You have to use this information to crack the Sudoku, but all the normal strategies of Sudoku still apply.

Anyone who has tried Kakuro will see a connection. A cage of two cells containing a target of 3 will must contain cells with the value 1 and 2. (We conform to the Killer convention that no cage will contain a duplicate number even if it is within the rules of sudoku). Killers strategies are explained on our forum here and on this external site here. A list of Cage/Value combinations is available here.

To play the Daily Killer Sudoku Competition,
enter your solution for the Killer puzzle here:

How to enter a solution:
You should type or Copy and Paste 81 numbers here.
They can be in a square or in one long line. All punctuation, white space and line feeds are ignored - so it does not have to be 'clean'.
We'll check that it contains 81 numbers before submitting.
Whats this for?
Read More here »


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Yesterday's Solution: Tough no. 872

3 1 5 6 2 9 7 8 4
4 6 9 3 7 8 1 2 5
8 2 7 1 5 4 6 9 3
2 5 6 4 9 7 3 1 8
7 4 3 2 8 1 9 5 6
9 8 1 5 6 3 4 7 2
1 7 2 8 4 6 5 3 9
5 9 4 7 3 2 8 6 1
6 3 8 9 1 5 2 4 7



30 Day Killer Archive
Mo Tu We Th Fr Sa Su
Diab Tou Tou Mod Mod Gen Gen
            20/7
21/7 22/7 23/7 24/7 25/7 26/7 27/7
28/7 29/7 30/7 31/7 1/8 2/8 3/8
4/8 5/8 6/8 7/8 8/8 9/8 10/8
11/8 12/8 13/8 14/8 15/8 16/8 17/8
18/8 19/8 20/8        



30 Day Killer Solution Archive
Mo Tu We Th Fr Sa Su
Diab Tou Tou Mod Mod Gen Gen
      20/7
21/722/723/724/725/726/727/7
28/729/730/731/71/82/83/8
4/85/86/87/88/89/810/8
11/812/813/814/815/816/817/8
18/819/8     
Extreme Sudoku | Jigsaw | Killer

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Top Killer Sudoku Experts
ordered by most correct entries
champion350 - Pete Tyjewski, USASame
champion350 - Carole Nicholson, UKSame
champion350 - Charles Low, USASame
champion350 - CK Chou, USASame
champion350 - David Hay, UKSame
champion350 - Don Parker, USASame
champion350 - James Angel, USASame
champion350 - Janet Barrett, UKSame
champion350 - John F. Kazanovicz, USASame
champion350 - Joseph Keung, USASame
champion350 - Julia Critchley, UKSame
champion350 - Kelly Jackson, CanadaSame
champion350 - Margo Hemond, USASame
champion350 - Martha S Hunter, USASame
champion350 - Milton Orloff, USASame
champion350 - Nigel Ross, UKSame
champion350 - Norman H Pickering, UKSame
champion350 - Peter Nielsen, USASame
champion350 - Rodney Macready, AustraliaSame
champion350 - Russell Holloway, USASame
champion350 - Savvas Paritsis, USASame
champion350 - Sharon Clarke, USASame
champion350 - Shaun August, UKSame
champion350 - Steve Jaster, USASame
champion350 - Tomas Kollen, USASame
champion350 - Zeev Katz, CanadaSame
27349 - A L Veilleux, USASame
27349 - Alan Frost, UKSame
27349 - Alan Skinner, UKSame
27349 - bob fox, USASame
27349 - Bob Witherspoon, UKSame
27349 - David vd Westhuyzen, South AfricaSame
27349 - Edgar F. Legaspi, PhilippinesSame
27349 - Jane Breeden, USASame
27349 - Jim Davis, USASame
27349 - Mike Vivian, USASame
27349 - Mitchell Sestile, USASame
27349 - Paul Brackenbury, UKSame
27349 - Pauline Southgate, UKSame
27349 - Ria Tettelaar, NetherlandsSame
27349 - Sergio Humberto Hernández Gutiérrez, MexicoSame
Congratulations!


--Sponsor Sought for Prizes--

The competition rules are simple, just print out the Killer sudoku from the link above/left and when you have completed it enter the numbers in the box on the form with your name and address. In the meantime play for fun!

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