Еґ—爆蝉暾柒蹂躟＜郓...: 47-霳脸大水鐼鼞麚崳埋＜让尟哴圸镜头剝近距离蝉嘴给狼埋看＜丝袜高跟迱惑＜ж—

A geometry problem about a regular octahedron with its faces divided into smaller triangles, asking for the maximum number of non-adjacent triangles that can be colored.

You can find the official papers, including specific versions for different grade levels and difficulty settings, on the Official Tournament of Towns website and the University of Toronto's mirror site . A geometry problem about a regular octahedron with

A problem involving a 60-digit number made of ones and eights, requiring a proof of divisibility by a 30-digit number consisting only of nines. A geometry problem about a regular octahedron with

table filled with plus and minus signs, where they take turns crossing out rows and columns. A geometry problem about a regular octahedron with