If you are a good Blitz player (= you can keep up with players that are otherwise in long OTB games better than you) - chances are that your tactic-skill is similar like the tactic-skill of those "better" long OTB players.
Why?
Blitz is mainly about tactics. Probably shallow tactics, but I am not even sure this is true. (Likely: if you are good in shallow 2-3 mover tactics - chances are high you are similarly good in longer 5-6 move tactics, too. I mean compared to others. For all of us --> the deeper the more difficult it gets).
But long OTB games can be much less about tactics.
Chess isnt 99% tactics. It is about 70% simple tactics, 10% difficult tactics, and the rest is rules with some half.
You can get away full games without possessing strong tactics. This is totally different to what the common believe is. However, I am proof myself: my blitz abilities are poor, but I am 300-400 fide elo points better if the time control is long enough.
And I now how I do it: I avoid tactics. Having said that, we can not avoid simple tactics. 2-3 moves are needed to check here and there, but really, it is simple most of the time. And we can avoid too difficult tactics if we play carefully.
Thomasz is a chess player who is totally different to me:
His boardvision skills are better than mine, and we did some blitz matches and I lost like 20 to 5 against him. Nevertheless, he is just a 1800 fide elo player, while I am more 2200 fide elo.
His chesstempo-Blitz tactics are a little bit worse than mine. Didnt I say Blitz is mostly about tactics? Why am I then so poor in Blitz if my chesstempo-Blitz tactics are even a bit better than Thomasz´s chesstempo-Blitz-rating?
Well, the truth is, that chesstempo-Blitz tactics are not so shallow as most tactics in Blitz are. At CT Blitz of 1800++ you get quite some difficult ones, which you rather find in a puzzle only because you know it is a puzzle, plus these puzzles often have solving times above 1 min - hardly something we can call "Blitz", can we? Otherwise, in a real Blitz game, you less likely find these difficult tactics (unless they are highly pattern driven, but those are seldom in the 1800++ - ranges).
So what do we need to play better OTB?
Really, I strongly believe it is a good opening repertoire where you know how to play the openings a bit in the middle game, too. These must be openings which arent too sharp, cause we dont want tactics. We want an advantage through "better knowledge" about the position.
In my next post I give an example.