Never resign! (because it's never late for the opponent to blunder mate)

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Chess.com says this puzzle is rated 2500. 97% pass rate. I guess I'm a master?

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Why is this the best move?

What about it?

Isn't taking the rook back better and wins a pawn?

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My first mistakeless chess match!

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Cool M2 i found in a Game today

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White resigned. Moral victory, forfeit or 700 elo blunder?

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Can you find the next best move for black?

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Accused me of cheating because I played fast in a bullet game

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HOW my move is mistake and how I move c6?

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Why is it oversight?

What about it?

I ended up taking rook and Queen

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How is Bb4 not a brilliant move but an inaccuracy?

What about it?

A great would also be fine but inaccurate really?

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