Fitch Cheney app for iPhone and iPad

4.0 ( 7440 ratings )

Card Education Games
Developer: Joachim Neumann

Free

Current version: 1.0, last update: 1 year ago
First release : 17 Apr 2021
App size: 2.13 Mb

Inspired by the YouTube video "The Pigeon Hole Principle: 7 gorgeous proofs" by Burkard Polster (Mathologer): https://www.youtube.com/watch?v=TCZ3YwbcDaw

Explaining PDF: https://web.northeastern.edu/seigen/11Magic/FitchCheneyFiveCardCount/Fitch%20Cheney%27s%20Five%20Card%20Trick%20-%20Colm%20Mulcahy.pdf

How to use
The order of the cards for the ranking is 2, 3, 4, ... A and diamonds, hearts, spades, clubs.

In the iOS Settings app, you can scroll to Fitch Cheney and adjust (a) the language of the only word (card) and the position of the key card between 1 and 4