Majority of the puzzles on the internet focus on attacking the opposing king and figuring out clever combinations to win material. While these kinds of attacking puzzles are essential to improving as a player and are fun to do, these positions are not the only kind of critical positions in chess. To prevent giving your opponent an attacking puzzle, a chess player has to make these kinds of decisions. The type of puzzles on this website (defensive puzzles I guess, because there is only one move that doesn't lose) are positions in which the evaluation is approximately even and there is only one move to maintain the equality. Essentially, do or die puzzles. By creating this website, my goal is for chess players to have more exposure to these kinds of do or die positions with the hope of the player's improvement in recognising and improving instinct in these types of moments in game. I encourage users to fully calculate the positions as if it's a real game where there is no second try on moves, where blindly playing moves is at a minimum. If a puzzle is difficult, my advice would be to first look at what weaknesses your position has. It could be that your opponent has a tactic to win one of your pieces or your king is weak. What does your opponent want to do? Then look for how to solve these problems. The easiest part is that you're not looking for a crazy sacrifice or to win material. You're looking to find probably a normal move which doesn't lose. Being more experienced than your opponent in these precarious positions could be the difference between losing or not. Most importantly, have fun!
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