Leticia
Color Echo
The classic memory game (Simon). Watch the four pads light up in a growing sequence, then tap them back in the same order. Each round adds one step and speeds up; one wrong tap ends the run. How long a sequence can you echo?
Sim
The elegant pencil-and-paper game from Ramsey theory, you (red) versus a minimax CPU (blue). Six dots sit in a hexagon with all fifteen connecting lines drawn faintly. Take turns claiming a line in your colour — but the instant you complete a **triangle** of three dots all joined in **your** colour, you **lose**. The twist: a draw is mathematically impossible (Ramsey's theorem, R(3,3)=6), so once the lines fill up *someone* must crack. Force the CPU to make the first triangle.
Shut the Box
The classic pub dice game. Roll two dice, then flip down any set of standing tiles (1–9) that adds up to the roll. Keep going; if no combination matches the roll, the round ends and your score is the sum of the tiles still up (lower is better). Flip them all down to "shut the box" for a perfect round.