More Cops & Robbers

We will continue our investigation of Cops & Robbers, working out the optimal strategies. Time permitting, we’ll introduce a new topic called Zoom Room Foom. Math Circle OnlineSunday October 26 7pm Look to email for login instructions

Cops & Robbers 2

Last weekend, we continued our study of finite arithmetic, so this weekend, the Math Circle will play a game called Cops & Robbers. A criminal is loose on foot in the city, and the police wanted him apprehended. The police car is faster, but the robber is not known for obeying the law… Math Circle …

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WPI 2025

On Friday October 17th, Rishabh Murthy, Tarun Ravindran, Tristan Moffroid, and Nithin Sathappan from the Academy for Science and Design attended the 35th annual WPI Invitational Mathematics Meet, as representatives of the New Hampshire Math Circle. The challenging contest consisted of both an Individual Round and a Team Round. The Math Circle finished 21st among …

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Cops & Robbers

This weekend, the Math Circle will play a game called Cops & Robbers. A criminal is loose on foot in the city, and the police wanted him apprehended. The police car is faster, but the robber is not known for obeying the law… Math Circle OnlineSunday October 12 7pm Look to email for login instructions.

Finite Arithmetic

This weekend, the Math Circle will apply the backwards secret method to the problem of Finite Arithmetic. Math Circle OnlineSunday October 5 7pm Look to email for login instructions.

Secret Method Backwards

The Math Circle will continue with its investigation of the 2000 year old Secret Method, but this week we’ll run the algorithm backwards. Math Circle OnlineSunday September 28 7pm Look to email for login instructions.

Secret Method

This weekend, the Math Circle is going to learn a Secret Method, which is probably the most important algorithm that is NOT usually taught in schools, and is over 2000 years old. Math Circle OnlineSunday September 21 7pm Look to email for login instructions.

Zebra Game

The new Math Circle season begins online this weekend! We will start with a game called Zebra, invented at Dalhousie University in Canada. Please note, the Math Circle is a 501(c)(3) non profit. We encourage all participants to make a tax-deductible donation to support our activities. Math Circle OnlineSunday September 14 7pm Look to email …

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Polyomino Fortresses

This weekend we will play a new game called Polyomino Fortresses. Unfortunately, the rules are not provided – you’ll have to figure those out by yourself. Then we can prove some theorems about it… Math Circle OnlineSunday 8 June 2025 7pm Look to email for login instructions.

ARML 2025

New Hampshire’s top 37 student mathematicians were joined by 13 other teams from all over New England for the 50th annual American Regions Mathematics League competition. After several weeks of online practices, the three New Hampshire teams (the Rationals, Naturals, and Transcendentals) met at Saint Anselm College on Friday May 30th. Friday evening was filled …

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