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So he prepared for his opponent, isn't that just fair game?

Hi Regis! This is a very instructional game against a higher rated opponent. Black didn't manage to keep the position under control after a big advantage and then finally blundered. What I noticed her…

In almost every case this happens it is because the moves did not have the same outcome and you have overlooked something in the position. It should not happen that of two moves with exactly the same …

I don't see the rudeness. It's a legal chess move. I also feel it would make my endeavor to become a better chess player way more difficult if I just labeled a certain subset of moves as "rude" and bl…

I think this is what is running here: http://github.com/nmrugg/stockfish.js So it's stockfish ported to the javascript language.

Yes the engine to evaluate the position runs on your computer. I have the same problem, it's probably a performance issue due to the heavy calculation, but it's still beta so maybe it'll improve.

#2: Steering wheel only, sorry!

I think this game could be quite instructional: http://en.lichess.org/18la6hS9 I tried to make a flank attack work which turned out to be a horrible decision.

I think it's because of the underpromotion f8=N+. He promotes with check so he gets a free knight for a moment. Of course that is still completely losing and shouldnt fail the puzzle, but I guess tha…

Good luck! :D