# Math Puzzles

## Solving cryptograms in 10 simple steps

X NDPZ FSY’Z RBYZ ZS IA ZLAKA RLAY XZ LBMMAYP. Can you decode it? If not, let’s go through some general strategies that will help ðŸ˜€ 1. Words with one letter are either “A” or “I”. 2. A very frequent 3-letter word is “THE”. 3. There is an apostrophe then the letter after it is …

## How to solve the sudokube

The Sudoku Cube is a ripoff of the Rubik’s Cube, where each face has the numbers 1-9 instead of colours. The goal: put the numbers 1-9 on each side with no repetition It was created in 2006 by some guy named Jay Horowitz in Ohio. You can buy it at Barnes and Noble and some …

## Tower Stack game strategy (aka tower bricks, tower blocks)

Hey guys, there is this game called “Tower Stack” or “Tower Bricks” or “Tower Blocks” (among other names) and you can play it on Facebook, or MindJolt Games, or Brothersoft Games (etc). Here is a screenshot to show what I am talking about: What you have to do is: – build tower as tall as …

## The mathematics of sudoku

Tom Davis has a great article on the mathematics of sudoku. He first describes a brief history of the puzzle and how to play. Then he discusses why it is mathematically interesting (it is, trust me!). He goes through some obvious strategies that a lot of people try when doing sudoku and some other clever …

## Silly but trickly puzzle

So my PhD friends couldn’t solve the following problem… 3489 = 48410 = 49120 = 28328 = 42210 = 19910 = 39900 = 47172 = 03884 = 59889 = 69009 = 40911 = 28888 = 8 What is 3859?

## How to play STRIMKO

I thought it would be fun to create a video on “How to play strimko.” It’s just like Sudoku but more fun!! Hopefully the creators over at strimko.com don’t mind me posting it on Youtube ^_^ You can view the video here (and you can play the fun game at strimko.com).

## Cool game – 20 questions – and how it works

Twenty Questions is a popular game which encourages deductive reasoning. Usually, one person is chosen to be the answerer. That person chooses a subject but does not reveal this to the others. All other players are questioners. They each take turns asking a question which can be answered with a simple “Yes” or “No”. Lying …