LLD - Design — Chess Game
Which design pattern best supports adding new piece movement behaviors at runtime without modifying existing classes?
Which design pattern best supports adding new piece movement behaviors at runtime without modifying existing classes?
hard📝 Trade-off Q9 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand requirement
Need to add new movement behaviors dynamically without changing existing code.Step 2: Evaluate patterns
Strategy Pattern encapsulates algorithms (movement rules) and allows swapping at runtime.Step 3: Confirm best fit
Strategy Pattern enables dynamic behavior changes without modifying piece classes.Final Answer:
Strategy Pattern -> Option CQuick Check:
Strategy pattern enables runtime behavior changes [OK]
Quick Trick: Strategy pattern enables dynamic behavior changes [OK]
Common Mistakes:
MISTAKES- Confusing with Singleton which controls instance count
- Factory Method creates objects but not behavior changes
- Observer is for event notification, not behavior encapsulation
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