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  • Custom User Avatar

    In English, it means exactly what it says. One. Not any other number.

  • Default User Avatar

    Well, mathematically speaking, "having one solution" means "having at least one solution", i.e. being solvable. So are the solutions always unique, is that what the kata wants to say?

  • Custom User Avatar

    I suspected as much. :P

    No worries!

  • Default User Avatar

    Sorry, it turns out, I was wrong.
    I found a mistake in my program.
    You are right. All puzzles have one possible solution.

  • Custom User Avatar

    Please post examples for that. Any two different solutions for any puzzle will do. I rather suspect you're doing something wrong, but I'm very willing to be proven incorrect.

  • Default User Avatar

    "All puzzles have one possible solution." - that not exactly right.
    "Test_1_hard" have 470 possible solutions.
    "Test_2_hard" have 42 possible solutions.
    "Test_4_very_hard" have 686 possible solutions.
    Does "int check()" take this into account?