Kakuro Game: Cross Sums
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Kakuro Game: Cross Sums


Also known as Cross Sums, Kakuro is a mix between a crossword and sudoku puzzle. Unlike a crossword puzzle where the clue is a word or phrase, a Kakuro clue is a number that the corresponding answer cells must add up to. That’s where the sudoku part comes in. Each clue has at least 2 and no more than 9 answer cells. Each answer cell must be a single digit (1-9). Duplicate digits are not allowed within a clue (4 = 1+3, 4 ≠ 2+2).

How to Play:

Kakuro is a crossword-like puzzle game that uses numbers for both the clues and answers.
The Basics
  • The value for a cell must be 1-9
  • The answer cells must add up to the clue
  • Duplicate numbers are not allowed within a clue (4=1+3, 4≠2+2)
  • Each puzzle has a unique solution that can be solved without guesswork
Puzzle Layout
  1. The number 11 is a clue
  2. These 2 answer cells need to add up to 11
  3. Possible combinations for the horizontal (11) and vertical (3) clues
Solving a Simple Puzzle
Let’s solve a simple 3×3 puzzle step by step. Keep in mind that there are many different ways to arrive at the same unique solution to a puzzle.
Step 1: Since the only combination for 23 into three cells is 6+8+9 we put 6, 8 and 9 in each answer cell for 23.
step 1
Step 2: For 9 across we remove the 9 in the second cell since 0+9=9 contains a zero. We then put 1 and 3 in the first cell (1+8=9 and 3+6=9).
step 2
Step 3: For 6 down we remove the 3 in the first cell since 3+3=6 contains duplicates. That leaves us with 1 in the first cell so we put 5 in the second cell (1+5=6).
step 3
Step 4: For 9 across we put 8 in the second cell (1+8=9). We then remove the 8 from the second and third cells of 23 since duplicates are not allowed.
step 4
Step 5: For 17 across we know the only valid combination is 5+9+3 since 5+6+6 contains duplicates.
step 5
Step 6: We can now finish the puzzle (8+9+6=23, 6+7=13 and 3+7=10).
step 6
Tip 1

Start with clues that have only one combination such as 3=1+2, 4=1+3, 16=7+9, 17=8+9, 6=1+2+3, and so on.

Tip 2

Take advantage of the possible combinations area located above the puzzle:


This area shows all possible combinations for the vertical and horizontal clues for the current cell. Numbers already entered in the answer cells for a clue will be blue. Combinations no longer valid are grayed out. Looking at the example above, we can determine the remaining two cells for the vertical clue (20) will be 7+9.

Tip 3

Use fast select and drag to improve your speed.Fast select refers to selecting a single number regardless of how many numbers are currently selected within a cell. To fast select right click a number (mouse), touch and hold a number for 1 second (mobile) or press and hold a key for 1 second (physical keyboard).

Use drag to select multiple numbers at once within a cell. To drag press and hold the left mouse button on a number then drag (mouse) or touch a number then drag (mobile). This works with all control types including the on-screen keyboard.

Kakuro Game: Cross Sums Game App

Kakuro Game: Cross Sums on Google PlayKakuro Game: Cross Sums on Apple App Store

Kakuro Game Cross Sums is one of many Board Games to play online on your web browser for free at KBH Games. Kakuro Game Cross Sums is also a cross-platform game that be played on a mobile phone, tablet, and computer. Tagged as Board Games, Crossword Games, Educational Games, Math Games, Number Games, Puzzle Games, and Sudoku Games. Kakuro Game: Cross Sums Game App is also available for your Android and iOS device on the GooglePlay and Apple App Store. Upvoted by 10 players. Other games you might like are Triangle Game and Cross the Gap. No download or installation needed to play this free game. Hope this game brings a little joy into your daily life.