MemoryTiles
With n distinct pairs, there are (2n)! / 2ⁿ possible card arrangements. Good play turns uncertainty into remembered information.
Toybox
Designed for quiet thinking and simple joy.
Toybox is a collection of eight small logic, memory, number and visual games. There are no accounts, streak obligations or timers unless a game itself needs one. Progress and preferences stay on this device and can be exported whenever you like.
- MemoryTiles — match symbol pairs and sharpen recall.
- PathLines — trace flowing paths around obstacles without crossing yourself.
- SequenceGarden — watch a growing sequence and repeat it from memory.
- Constellation — reconstruct briefly shown spatial patterns.
- SequenceForge — infer the next term in a numerical pattern.
- SumLeaves — find pairs of numbers that meet a target sum.
- ColourBloom — tune RGB values until your colour approaches the target.
- FractalGrow — explore recursive branching and save the forms you grow.
Choose a game above. Your state is saved automatically in this browser.
The ideas behind the games
PathLines
A geometric path-planning exercise. The game checks distances, obstacle collisions and whether new line segments intersect earlier ones.
SequenceGarden
At level k, the sequence has length k; cumulative taps through that level are k(k+1)/2. The task is a simple working-memory challenge.
Constellation
A visual working-memory task: hold a briefly presented spatial pattern, then reconstruct it after the pattern disappears.
SequenceForge
Informal rule induction using arithmetic, geometric, square-number and alternating-step sequences. The point is to infer a compact rule from examples.
SumLeaves
A two-number target-sum puzzle: choose two leaves whose values add exactly to the displayed target. It is a small, friendly relative of broader subset-sum problems.
ColourBloom
RGB colours can be treated as three-dimensional vectors (R,G,B). The game measures how close your chosen vector is to a hidden target.
FractalGrow
Recursive branching repeatedly applies a rule at smaller scales. Changing angle, decay and branching parameters produces different self-similar forms.