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Cheating potential
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After checking Preliminary results WPF GP Sudoku 3, I bet two competitors have cheated during the round. The 37th in the result earned 656 points in only 21 minutes, which is faster than 30 pts/min, and the 457th in the result earned 208 points in only 3 minutes, which is equivalent to nearly 70 pts/min! Is this solving speed reachable? It is not possible even for top solvers like Tantan Dai and Ken Endo!
There should be more unusual types
Because usual types are easier for computer solve, if a round mainly consists of usual types, then it will be easy for some competitors to cheat with computers. Therefore, to reduce the possibility of cheating, a round should contain a portion of unusual (not necessarily innovative) types, like Emitters Sudoku and Borderland Sudoku in Sudoku GP3, and usually they should be high pointers.