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  • In an 8 x 8 chessboard a queen placed anywhere can attack another piece if the piece is present in the same row, or in the same column or in any diagonal position in any possible 4 directions,

In an 8 x 8 chessboard a queen placed anywhere can attack another piece if the piece is present in the same row, or in the same column or in any diagonal position in any possible 4 directions, provided there is no other piece in between in the path from the queen to that piece. 

The columns are labelled a to h (left to right) and the rows are numbered 1 to 8 (bottom to top). The Position of a piece is given by the combination of column and row labels. For example, position c5 means that the piece is in cth column and 5th row.

Question:

If the queen is at c5, and the other pieces at positions c2, g1, g3, g5 and a3, how many are under attack by the queen? There are no other pieces on the board.

Option: 1

2


Option: 2

3


Option: 3

4


Option: 4

5


Answers (1)

best_answer

The queen can attack any piece that is in the same row, column, or diagonal.

In this problem, the queen is at c5. The possible attack lines for the queen are:

The 5th row (a5, b5, c5, d5, e5, f5, g5, h5)

The c column (c1, c2, c3, c4, c5, c6, c7, c8)

The diagonals that go from c5 to g1, c5 to g5, and c5 to a3.

The pieces that are under attack are the pieces that are on any of these lines. The only pieces that are on any of these lines are a3, c2, g1, and g5. Therefore, the answer is 3.

Here is a diagram that shows the possible attack lines for the queen:

The x's in the diagram represent the possible attack lines for the queen. The pieces that are under attack are a3, c2, g1, and g5. Therefore, the answer is 3.

 

Posted by

Rishi

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