Sunday, August 12, 2018

KenKen Puzzle Number 24: Using a tree diagram to clarify the logic

In this puzzle we employ a tree diagram for the first time to see the logical possibilities more clearly.  The 3 on top can combine with 2 or 4 in a 1- cage, and we can show how these possibilities combine with other numbers in a column to arrive at the column total of 15.  Check out the solution below to see this tree diagram at work!




KenKen 6x6 Puzzles to Solve Without Scratch Paper

Lately I have been challenging myself to solve 6x6 puzzles without using scratch paper for factoring or other figuring.  Below is a link to ...