#873, August 20:
Competition Killer Sudoku Puzzle - Tough level of difficulty
PRINTABLE VERSION: CLICK HERE FOR BLACK AND WHITE -
HERE FOR COLOUR
| 11 |
11 |
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20 |
6 |
21 |
11 |
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16 |
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14 |
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| 15 |
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14 |
5 |
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6 |
| 10 |
13 |
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29 |
14 |
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10 |
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19 |
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9 |
| 12 |
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11 |
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23 |
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14 |
13 |
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4 |
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| 6 |
11 |
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11 |
11 |
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22 |
13 |
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Mondays are Diabolical!
Tuesdays are Tough
Wednesdays are Tough - Today!
Thursdays are Moderate
Fridays are Moderate
Saturdays are Gentle
Sundays are Gentle
Cage Combinations
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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.
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 |
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Extreme Sudoku | Jigsaw | Killer
Top Killer Sudoku Experts
ordered by most correct entries |  | 350 - Pete Tyjewski, USA |  | | 350 - Carole Nicholson, UK | | | 350 - Charles Low, USA | | | 350 - CK Chou, USA | | | 350 - David Hay, UK | | | 350 - Don Parker, USA | | | 350 - James Angel, USA | | | 350 - Janet Barrett, UK | | | 350 - John F. Kazanovicz, USA | | | 350 - Joseph Keung, USA | | | 350 - Julia Critchley, UK | | | 350 - Kelly Jackson, Canada | | | 350 - Margo Hemond, USA | | | 350 - Martha S Hunter, USA | | | 350 - Milton Orloff, USA | | | 350 - Nigel Ross, UK | | | 350 - Norman H Pickering, UK | | | 350 - Peter Nielsen, USA | | | 350 - Rodney Macready, Australia | | | 350 - Russell Holloway, USA | | | 350 - Savvas Paritsis, USA | | | 350 - Sharon Clarke, USA | | | 350 - Shaun August, UK | | | 350 - Steve Jaster, USA | | | 350 - Tomas Kollen, USA | | | 350 - Zeev Katz, Canada | | | 27 | 349 - A L Veilleux, USA | | | 27 | 349 - Alan Frost, UK | | | 27 | 349 - Alan Skinner, UK | | | 27 | 349 - bob fox, USA | | | 27 | 349 - Bob Witherspoon, UK | | | 27 | 349 - David vd Westhuyzen, South Africa | | | 27 | 349 - Edgar F. Legaspi, Philippines | | | 27 | 349 - Jane Breeden, USA | | | 27 | 349 - Jim Davis, USA | | | 27 | 349 - Mike Vivian, USA | | | 27 | 349 - Mitchell Sestile, USA | | | 27 | 349 - Paul Brackenbury, UK | | | 27 | 349 - Pauline Southgate, UK | | | 27 | 349 - Ria Tettelaar, Netherlands | | | 27 | 349 - Sergio Humberto Hernández Gutiérrez, Mexico | | | 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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