Colour Sorting Game
Constructing an unsolvable setup in a colour sorting game.
Mathematics
Connected Lights
Lights connected in a string or a loop, each attached to a switch that will change the state of the light itself and its neighbours when pressed.
Connecting Letters
Connecting letters on the left to their matching letters on the right without crossing any lines.
Seven
The card game Seven is one where players take turn extending the numerical sequences of cards in their respective suits.
Irish Snap
Irish Snap is a multiplayer card game using the standard deck of 52 playing cards where each player takes turns laying down one face up card each while counting. I.e. the first person says “ace” while laying down the first card; then the second person says “two” while laying down the next card. This process is repeated until the card that has just been laid down matches the number the person just called. When such a match happens, all players race to slap a hand on top of the pile of cards, and the slowest person has to take the pile into their hand. The first person to empty their hand wins.
Faro Shuffle (in-shuffle)
Doing in-shuffles on a deck of n cards.
Faro Shuffles (Out-Shuffle)
Doing out-shuffles on a deck of n cards.
Cross Sections of Polyhedra
Cutting three dimensional shapes and looking at the possible shapes of the cross section.
Polygons in Polygrams
Each regular polygram has a regular polygon at its center.
Halfing 3D Shapes
Cutting 3D shapes parallel to the base such that the top and bottom resulting portions have the same volume.