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Kakuro Kakuro
How to play Kakuro
Kakuro is similar to both sudoku and traditional crossword games.
Like a Crossword
Similar to crosswords, Kakuro has clues both across and down. When you put numbers in the vacant squares, the sum must equal the given clues. This is why the game is sometimes called 'cross sums'.
Like a Sudoku
Just like a sudoku, you cannot have the same number in a row or column. If a row is broken into 2 areas by a clue, then you can have the same number occuring once in each of the separate areas.
Other variations
Still looking for more puzzles? How about a variation on sudoku? Try Wordoku. Wordoku uses letters instead of numbers and has a hidden 9-letter word! For crossword puzzles, try Free Crossword PUzzles. 2 free crosswords (Easy, Hard) daily.

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Hard Kakuro for 17/February/2016


 
  
 6 
  
 10 
  
 21 
  
 39 
   
  22
  
       
  
 5 
 
  18
  
           
   
  10
 3 
     
  
 6 
 
  9
  
     
  
 3 
 
 
  15
  
         
   
  14
  
       
Choose a number, and place it in the grid above.
  1 2 3 4 5 6 7 8 9
Talk about anything and everything, but nice to each other - you don't have to agree, but this is not the place for personal attacks. As Sir Paul McCartney said: 'I used to think anyone doing anything weird was weird. Now I know that it is the people that call others weird that are weird' (longer explanation). Enjoy!
-o-c: determined what is true about one column regardless of another column

nada is so close - perhaps I've called other puzzles nada, even though I used similar logic as this one.
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+p, not easy
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Used possibilities, orphans and two chains.
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+p +o.
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4:43 nada. Will post details shortly.
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Oops --- Not nada after all. I managed to forget that I'd used orphans. (No possibilities, though.)
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The solution with orphans, no possibilities:

1) Fill in D, V.

2) Orphans give J, Q, hence N, M, R U, Y, Z.

3) THE KEY STEP: 6 in G implies 5 in H, and 6 in W implies 5 in X. These are the only two places for the 6 in 21 down, so the 5 in 39 down is in either H or X, hence More...
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AHA! It *is* nada:

1) Fill in D, V.

2) KEY STEP: 6 in G implies 5 in H and 6 in W implies 5 in X, so 5 is in H or X, hence not anywhere else in 39 down. In particular, T=4, S=5.

3) From step 2) can fill in L, P.

4) Now can deduce 1 in E, which forces 2 in F, 8 in B, 2/3 in A/C

5) W is now determined, and we're done.
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+P +O
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What about C=6?
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Same question as me from here
22A = 3, 4, 6, 9
18A = 12, 6, 12, 5, 4
disproof needs +p unless Aspie eye fail
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here is my -o-c+u approach (without evaluating Willo's nada claim), assuming you got 1st 2:
1. Regardless of 6 in 21D, HX contains 5 and solve TPL
a. If G=6: H=5
b. If W=6: X=5
c. If C=6: 10D=46, GH not 45 pair due to unique requirement, IH=45
2. Solve rest of puzzle (I started with 12 pair in 18A).
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me and aspie: You're right. C=6 is ruled out by orphans, but this isn't nada. My apologies.
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willo, I do that a lot
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Possibilities and orphans and a guess
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I got to nada, assisted by Willo's suggestions.
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PS. C=6 didn't work when I ran the mental chain.
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+p
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5:50
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Orphans and a lot of work, 2021.
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