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 Killer Sudoku Daily Competition Advance puzzles are now available
 Now available for your iPhone Cool Sudoku Visit our site to see the great iPhone application that brings you Sudoku, Killer, Jigsaw, Kakuro and Mini Sudoku to your iPhone/iPod Touch. We are running Daily Competitions and will be supporting a leader board for each puzzle type. Click to go to the Cool Sudoku Site or use the Button below to view in iTunes

 #6700, August 3: Competition Killer Sudoku Puzzle - Gentle level of difficulty Welcome to the Daily Sudoku Competition. The rules are simple, just print out the Sudoku from the link below and when you have completed it enter the numbers in the graphical sudoku board (yes it's a form!). You need to enter your name, email address and country. If this is your first time then it will automatically create a personal history for you so you can keep track of your submissions and try for the Experts list. Anyone can get into the Top Sudoku Expert list - this is now the sum of all your correct entries for the last three hundred and fifty days. Read the Web Site Update announcement for the update on submitting. The competition cut-off time is midnight EST (GMT-5) and 5:00am (GMT) UK Time. PRINTABLE VERSION: CLICK HERE FOR BLACK AND WHITE - HERE FOR COLOUR Please NOTE: There is now a Sudoku Solver available - click HERE

 13 3 18 22 11 13 14 16 8 3 11 11 15 10 12 5 15 13 5 7 5 18 8 14 9 16 16 18 4 8 3 24 9 14 14
Mondays are Diabolical!
Tuesdays are Tough
Wednesdays are Tough
Thursdays are Moderate
Fridays are Moderate
Saturdays are Gentle - Today!
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. - How long did it take? Who Knows? Less than 20 minutes 20 to 30 minutes 30 to 40 minutes 40 to 50 minutes 50 to 60 minutes 60 to 90 minutes 90 to 120 minutes 2 to 3 hours More than 3 hours Whats this for? Read More here »

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## Yesterday's Solution: Moderate no. 6699

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

 30 Day Killer Archive Mo Tu We Th Fr Sa Su Diab Tou Tou Mod Mod Gen Gen 3/7 4/7 5/7 6/7 7/7 8/7 9/7 10/7 11/7 12/7 13/7 14/7 15/7 16/7 17/7 18/7 19/7 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

 30 Day Killer Solution Archive Mo Tu We Th Fr Sa Su Diab Tou Tou Mod Mod Gen Gen 3/7 4/7 5/7 6/7 7/7 8/7 9/7 10/7 11/7 12/7 13/7 14/7 15/7 16/7 17/7 18/7 19/7 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
 Need help with your Puzzle solving In addition to our solvers we also offer utilities to help you solve various puzzles. One example is out Killer/Kakuro possible value calculator.

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