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puzzle 47316

lichess.org/training/47316

I failed with Kc2 instead of Kb2. Bullshit. Whatever the theme is supposed to be is lost on me. The queen has options out, so why not centralize the king and keep open b and d files? Why would black ignore the handing knight?

are these computer generated problems? thanks.
WHAT??? Haven't done this problem because of your comment. Why not Nxc4???? Is this problem an absolute joke. Kb2/c2 loses the queen. Nxc4 wins the queen for a knight. This puzzle is incorrect IF what you stated is correct. And all these puzzles are computer generated. Again, I do not wish to move as the problem might be a bug.
I just played the problem and Nxc4 is the accepted answer.

An piece of advice for you guys: shut up when you speak.
You guys missed the point of what "diewannawanga" was referring to, that after 1.Nxc4 dxc4 2.Kc2 fails instead of Kb2. Maybe the king is cutting the retreat path of the queen on c2.
Analyzing with SF-DD the difference is that Kb2 eval is+10.42 while Kc2 eval is +8.70 at depth 24. The difference is 1.72 between the two evals but it's obviously winning with Kc2 as well.
He didn't meant that 1.Kc2 instead 1.Kb2 but 2.Kc2 instead of 2.Kb2 after the knight captures the queen on c4 and not before.
In conclusion I agree with "diewannawanga" that 2.Kc2 should not be considered a failed puzzle.
man, this is easy, it took me about 2.2 seconds to solve it
This is a positional advantage puzzle (mainly). Kc2 should be considered 'good move but there is better'. However, under math it isn't. Taking your evals, Kb2 = 10.42 Kc2 = 8.70. Within 10% of best move = good but try again & within 5% = accepted. 10.42 = best move, so 10.42-1.042 = try again min. This is about 9.42. 8.7 = puzzle fail.

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