Piano moving 3

First look at Piano Moving and Piano Moving 2 We invert the problem and ask what size corners a specific piano can only just fit round.

Tags: piano-problem, ladder-problem

Piano Moving 2

First look at Piano Moving Seeing multiple positions of the piano at once makes the problem easier. Next look at Piano Moving 3

Tags: piano-problem, ladder-problem

Piano mover's problem

Can you move a piano round a particular corner?  

Tags: piano-problem, ladder-problem