Update

chess.md

@@ -463,6 +463,8 @@ Some general tips and rules of thumb, mostly for beginners:
 - Think from opponent's point of view -- this seems to be an important skill that beginners lack. If you only think about what you want to do, you often find yourself in trouble because you ignored the opponent's threats. At the very least you should ALWAYS think after the opponent's move about WHY he made it to be aware of what his plan probably is and what you should be prepared for. If you don't see why he made a move he did, you must think harder: either he blundered (good for you, take the opportunity!) OR you missed something and you have to find what.
 - Sometimes, usually in endgames, the obligation to make a move becomes a disadvantage -- this is called [zugzwang](zugzwang.md) and can be abused. For example if the opponent has a pawn and a king who guards another pawn, it may be so that blocking the first pawn will make it unable to move, leaving the opponent with only a move that will make his king stop guarding the other pawn which can then be taken.
 - Practice endgame -- the play is quite different from middle game, the king joins the battle, you start to race your pawns and prevent opponent's pawns from promoting. { I don't know if it's a good advice but at least in puzzles I've found that if you aren't sure about your move in the endgame, pushing the pawn is usually the right move :D ~drummyfish }
+- Upon entering the intermediate level it's probably good to start train many different areas, variants and formats: try to play puzzles, blitz, rapid and classical, against computer and humans, normal chess and chess 960 etc. The thing is that in order to seriously improve, many individual skill must be boosted -- deep calculation with a lot of time on the clock, quick intuitive play under time constraints, play with different combinations of men, offense and defense, playing with material advantage and disadvantage etc.
+- Also to improve considerably, one must do a few things besides just playing, such as watching others play and especially analyze one's losses, to discover weaknesses and shortcoming that must be eliminated or at least minimized.
 - TODO: moar
 
 ## How To Disrespect Your Opponent And Other Lulz In Chess