mathschallenge.net is run by one person (Colin Hughes) in his spare time, so please be patient when waiting for replies. I remain strongly committed to providing mathematical problems for educational and recreational purposes in an entirely non-commercial setting. Consequently I will not accept business proposals or requests to feature advertising. Contact should generally be restricted to making constructive comments or queries relating to the problems published on the website; please do not contact me to ask for help in solving homework assignments! If you do make contact it helps to provide a little information about yourself and the reason you are making contact.
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