As for the principles of how to improve your game, they can be stated very simply:
a) Immerse yourself in chess culture
b) Analyze your own games, avoiding self deception
c) Play in the best tournaments you can get
And that's it.
Tournament Entry Rating is calculated by the formula (CurrentRating + HighestRating) / 2. The entry rating will never drop to more than 100 points below your Highest Rating.
Rated stats are updated within 24 hours of the last completed rated game.
Last move 3414 days 13 hours and 50 minutes ago 
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