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MathNet 2010 — Part 02 Question 51

Math Olympiad Vault · MathNet 2010 — Part 02

Question 51

There is a pile of $1000$ matches. Two players each take turns and can take up to $5$ matches. It is also allowed at most $10$ times during the whole game to take $6$ matches. (There are no restrictions who uses this possibility, for example $1$ exceptional move can be done by the first player, and, say, $3$ moves by the second.) Whoever takes the last match wins. Determine who wins this game.