Throwing in a little bit of psychology in chess :-)
I've written about, and shown before, several games in which the opponent starts blundering right after an unexpected queen sac.
Another thing that I have noticed is the following :
- Get a lost or seemingly lost position
- Start thinking for a really long time
- Don't resign but continue playing
- Increase the speed of making the moves after the long thinking
- Profit !!! :-)
Here's a game in which that just happened. I was a bit absent minded, and my opponent played a bit of an unusual gambit in which there was very little compensation.
Then I blundered a pawn, and suddenly I disliked my position, and even thought about resigning.
Then I thought for a long time, and continued.
Very soon the opponent blundered and resigned.
I believe that by long thinking in a worse position, especially in slow time control over the board chess games, can give the opponent more time to get into the "Hey-I-have-a-won-position" feeling, which sometimes can cause a temporarily lack of alertness and concentration.
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