How to Avoid Blunders, Part 3
We continue our analysis of different kinds of blunders and today we'll discuss the most complicated one. The two kinds of blunder that I described in the first two parts of this article can be fixed relatively easily: (1) When you play a game you should concentrate on the game and on nothing else, and (2) Even when it looks like the game is over ...it is not! So don't relax prematurely until the clock is stopped and the result is posted in a tournament cross table.
You will see shortly why the kind of blunder we are discussing today is different.
3) Blunders due to poor visualization
This kind of blunder happens when you calculate a sequence of moves, but don't register the changes of the position in your mind. So, when on move two or three of the variation your piece unexpectedly gets captured, all you can do is just wonder where did your opponent's piece (or pawn) come from. Here is a good example: