As mentioned in my previous post, here I will give several example of impartial game which turn out to be exactly equivalent to Nim Game.
Given a line of squares labeled 0, 1, 2, …. Several coins are placed on some squares (it’s possible to have more than one coin on a single square). Two players take turns. One move consists of taking any one coin and moving it to any square to the left of it. It’s possible that the coin moved into a square already containing coins.