CAT 2017 Slot 2 — DILR Question 21
Answer the following question based on the information given below.
In an 8 × 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 given by the combination of column and row labels. For example, position c5 means that the piece is cth column and 5th row.
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.
Answer & solution
- A
2
- B
3
4
- D
5
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In the diagram given above let Q represent the queen at cell C5. Now let us suppose pieces P1, P2, P3, P4 and P5 are at cells. C2, G1, G3, G5 and A3. As can seen that Q can attack P1 as they are is the same column and can attack P4 as both are in the same row. Further Q can attack P5 and P2 as both are in a diagonal position to Q. So it cannot be attacked by Q. So 4 pieces i.e., P1, P2, P4 and P5 can attacked by Q.
Hence, option (c).