Think ahead

Logic Level 1

You have a King at your KB6 and a Rook at your QR7. I have a lone King on my KN1. It is your move.

Assuming I put up the best possible defense, how many moves will it take for you to checkmate me?

(Descriptive notation is being used for the piece locations.)

2 6 10 3

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Denton Young by Denton Young , 47, USA

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1 solution

Denton Young
May 24, 2016

If you play 1 R-QN7, I have a choice of 2 moves.

1... K-B1 leads to 2 R-N8 mate. So I will instead play 1... K-R1.

You follow up with 2 K-N6, leaving me only one legal move. After 2... K-N1, you play 3 \boxed{3} R-N8 mate.

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Can you elaborate on the chess notation:

You have a King at your KB6 and a Rook at your QR7. I have a lone King on my KN1.

Calvin Lin Staff - 5 years ago

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It's standard chess notation. KB6 is the 6th square on the KB file (3rd file from the right if you're White.) So it's exactly 5 squares up the board from where the KB starts the game. QR7 is the 7th square on the QR file, and KN1 is the square where the KN starts the game.

Denton Young - 5 years ago

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Ah, you're using the descriptive chess notation, instead of the algebraic chess notation. Can you add that note tot the problem?

Calvin Lin Staff - 5 years ago

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