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Cats and Rabbits OO Design

HardSystem Design00:00
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Your question is Cats and Rabbits OO Design. Take a moment with it on the right.

Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).

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Problem

OOD Cats and Rabbits Game: a two-player, turn-based game on a 7x7 board. Cat moves up to three squares vertically or horizontally and eats enemy pieces it moves through, blocked by friendly pieces; Rabbit moves up to two squares diagonally and its movement ends when it eats; Snail moves one square in any direction and cannot eat. You cannot end your turn with your snail in danger of being eaten, and moving other pieces can be illegal if it puts your snail in danger.

Asked in the technical phone round 2 stage. Rules were given by the interviewer; model the game as a practical object-oriented design task.