You can eliminate this missing digit from all the cells. Any digits excluded from the missing digits must be in the word. Any digits which must be in the missing digits cannot be in the word. Since the two missing digits sum to 4, they must be 1 and 3. Therefore, the word contains the digits 2,4,5,6,7,8, and 9.

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You can eliminate this missing digit from all the cells. Any digits excluded from the missing digits must be in the word. Any digits which must be in the missing digits cannot be in the word. Since the two missing digits sum to 4, they must be 1 and 3. Therefore, the word contains the digits 2,4,5,6,7,8, and 9. If the sum of a 7 digit word is 37, the missing two digits must sum to 8, and we know that 4,8 and 9 cannot be one of the missing two digits, therefore they must be present somewhere in the word.

You can sometimes use a similar technique to determine the value of corner squares by subtracting horizontal sums from vertical sums, or vice versa. The "Naked Subset" rule used to solve Sudoku applies to Kakuro for all words. For example, if you have a 6 digit clue, and two of the words have the same 2-dot pattern of possibilities, then those two words must contain those two numbers, and those numbers can be eliminated from all other cells in the word.

You also know the sum of those two cells, and can infer the sum of the remaining cells, which can be treated like a smaller word. The same rule applies to 3 cells which have the same 3 dot pattern etc. You can use the "Hidden Subset" rule from Sudoku,but only if you are dealing with a sum that has a known set or subset of digits, either due to tip 4, or to elimination from other rules.

So, if you know that a 7 letter clue must must contain 4 8 and 9 because it sums to 41 and only 3 cells have 4 8 or 9 as possibilities, then only those 3 cells can contain 4 8 and 9.

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## Tips and tricks: easy ways to solve Kakuro

In addition, no number may be used in the same block more than once. The best way to learn how to solve Kakuro puzzles is to see how a puzzle is solved from beginning to end. Step 1 Kakuro puzzles are all about special number combinations. However, square a1 must be smaller than 6 because of the 6-in-two block in column a.

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## Kakuro.com

Tips and tricks: easy ways to solve Kakuro A simple puzzle Here is a Kakuro puzzle which will turn out to be very simple to solve. We give every column a name: the first one is A, the second, B, and so on to the tenth, J. To each row we also give a name: the top row is a, the next, b, and so on to the bottom row, which is called j. Each square lies in the intersection of a row and a column, so we can name it uniquely by giving both the row and column names. For example, the bottom right square is called Jj. In trying to solve a puzzle we will need to have a name for the unknown number that goes into a square.

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## Kakuro techniques

Lone square An empty square that has all its neighbouring squares either column or row filled in can easily be solved. Simply add together the corrsponding neighbouring values and then subtract the total from the clue. The remaining value is the answer for that square. Any values which appear in the combinations for both runs are candidates for the square on which the runs intersect. However, the only common number in both sets of combinations is 3, therefore the intersection square must be 3. Combo reference This technique works by picking a run and performing a cross reference on every square along it, weening out combinations until you have only 1 left.

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## Solve Kakuro puzzles

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