What’s Wrong with Geistes Blitz (Ghost Blitz)?

Here is a video I made about the maths of one of my favourite games ‘Geistes Blitz’ (Ghost Bliz). 

In investigating Geistes Blitz, I made a new game ‘Shape Match’ which I call the ‘mathematically sensible’ version of Geistes Blitz. It has a nice mathematical property that Geistes Blitz doesn’t have. 

You can download and play Shape Match here: https://www.dropbox.com/s/qv2xab2h5y6fwxf/Shape%20Match.zip?dl=0

I made the video for the 2020 ‘Big Lock-Down Math Off‘.

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