Participant: cathook

Representing Taiwan using C++.

Qualification Round: ranked 6142 (80 points)
Tic-Tac-Toe-TomekLawnmowerFair and SquareTreasure
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Round 1B: ranked 412 (64 points)
OsmosFalling DiamondsGarbled Email
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Round 2: ranked 1382 (15 points)
Ticket SwappingMany PrizesErdős–SzekeresMultiplayer Pong
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