Professor Rackbrane has just given me the following puzzle as an example of those that interested his party at Christmas. Draw a pentagon, and connect each point with every other point by straight lines, as in the diagram.
How many different triangles are contained in this figure? To make it qui...
Huh. There's a new NZ bridge called Kāeo, which is A-OK (decent) with the back K moved up… except that it also has an E instead of the hyphen. So I guess that doesn't work.
Hard Numeric Puzzle Sequence:
What comes next? 2759, 4248, 1152, ?
Does anyone has a solution or any idea how to solve this?
What is the pattern
Thanks Richard
When figuring out Rubik's cubes, there are a number of intuitive approaches that help and are (at least for me) satisfying as an approach. One of the most powerful ideas especially towards the end of a solve is the idea of a pair of moves (I'm not sure I've seen this articulated, but I can't imag...