Last week we discussed an advanced chess variant called Retrograde Analysis. It can be quite challenging to play chess backwards!
But some chess variants can be quite pleasant and simple. Take for example chess mazes as described in this website. The goal in the examples below is for the Knight to capture the black King. You are only to move Knight. The goal is to find a series of consecutive moves that result in the black King being capture. Go ahead and give it a try. They get progressively more challenging.