Notes on Puzzles
Interesting observations, I would add my own:<p>- during long game, chess grand masters  have physiology comparable to marathon runner, while he runs. Deep thinking for several hours, takes huge load on body. All the logic and critical thinking, is not going to save you, if you are not fit, and your brain does not work correctly.<p>- real life is not about solving puzzles. Real life is a rigged game where rules are not enforced. Instead of finding problems to solve, you need to find oportunities (and loopholes) and exploit them!<p>- game is rigged, and oportunities close fast. What worked a couple of years ago, probably does not work anymore.