Learning From Blunders

In this blog post I'm documenting all of my blunders so that I can find the root cause of the blunders. The typical cause of the blunder should be the main weakness and will be fixed right away.

So far, here is what I think the cause of the blunders:

1) Evaluate the position long before the exact position takes place. Here I often failed to re-evaluate when the position becomes simpler, I just trust my previous analysis. I should have always do the re-calculation. AFAIK this is the root cause of my major blunders (Game: #1, #2)

2) Unsound thought process, weak analysis. When I have picked 2 candidate moves (picking candidate moves prevents blunder!) but after 90% of the calculation time non of these candidate moves satisfy me, I will desperately take another move that is calculated only a fraction of the calculation time (10%). (Game: #5)

3) Psychological upset after making small mistake (Game: #5)

4) I was sick (Game: #) --> Nothing I can do about it

Game#1: Here I offered a draw in a winning situation. If only I had evaluated this position after my last move, I wouldn't have offered a draw. I offered a draw before my last move, after which it is easier to see that the Bishop can easily be blocked by the Knight. But I evaluated the position long before the last position took place and I thought "There's no way I can save my Rook, and without it I will have a losing endgame, so I will make sure that he knows how to defend before offering a draw".