White lost because he failed to remember the right continuation and had to think up the moves himself
Many have become chess masters - no one has become the master of chess.
I had a toothache during the first game. In the second game I had a headache. In the third game it was an attack of rheumatism. In the fourth game, I wasn't feeling well. And in the fifth game? Well, must one have to win every game?
Always put the rook behind the pawn.... Except when it is incorrect to do so.
When you see a good move, sit on your hands and see if you can find a better one.
It cannot be too greatly emphasized that the most important role in pawn endings is played by the king.