Roodoku Guide
Written by cfurman28
Goal:
Fill in the blank boxes by moving your mouse over each square and clicking when
you see the number you want.
Rules:
Each column and row (regions) must include the numbers 1 through 9. Also, each
3x3 box (cage) within the large box must have the numbers 1 through 9. The
numbers cannot repeat.
Tips:
1. Use process of elimination to determine what numbers go in which box- No
region can contain any duplicate digits. In a Roodoku region each digit appears
exactly once. For example, if a digit appears in a row, it cannot be in any
other cell in the row.
Likewise, each digit can appear in a cage only once. If a digit is in a cage, it
cannot appear in that cage again.
2. One blank in a region or cage: Each region must contain all the digits one to
nine. So, if all the digits but one appear in a row, the missing digit must
appear in the empty square.
3. The sum of 1, 2, 3, 4, 5, 6, 7, 8, and 9 is 45. Therefore, each section will
equal 45.
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