[Solved] Identify the bug in this check detection function: def is_check(board, king_pos): for pos in board: if board[pos] == 'queen' and can_attack(pos, king_pos): return True return False | LLD

LLD - Design — Chess Game

Identify the bug in this check detection function:

def is_check(board, king_pos):
    for pos in board:
        if board[pos] == 'queen' and can_attack(pos, king_pos):
            return True
    return False

ALooping over board keys instead of pieces

BMissing parentheses in return statement

CNot checking for all enemy pieces

DUsing wrong variable name for king position

Step-by-Step Solution

Solution:

Step 1: Review piece checks in loop
The function only checks queens, ignoring other enemy pieces that can cause check.
Step 2: Understand impact on check detection
Ignoring other pieces causes false negatives in check detection.
Final Answer:
Not checking for all enemy pieces -> Option C
Quick Check:
Check detection must consider all enemy pieces [OK]

Quick Trick: Check all enemy pieces, not just queens [OK]

Common Mistakes:

Checking only one piece type
Assuming queens are only threat
Ignoring other piece attacks

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More LLD Quizzes

Identify the bug in this check detection function:

Step 1: Review piece checks in loop

Step 2: Understand impact on check detection

Final Answer:

Quick Check:

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