Gallery, prompt v1

A café floor in Penrose tiles

One frozen prompt and every model that has run it, newest first.

Saturated since 2026-10-02

It is off the board. Pareto 26.10 Preview and GPT-6.1 Sol both drew a real P3 tiling in all three runs, and I passed all six by eye. Sol did it for about 9 cents a run and Pareto for 17 to 37.

The prompt, v1, frozen

Draw a café floor tiled with a Penrose rhombus (P3) tiling, as an SVG.

Every model, its first three runs.

One square a check, in this order:

  1. Two rhombi, two fills
  2. No repeat
  3. Fivefold, edges drawn

passed, failed, undecided. A round mark is a check I judged by eye, and a diamond one a check a model judged.

Pareto 26.10 Preview
GPT-6.1 Sol

How it is checked

The SVG rendered and judged by eye. A P3 tiling has two rhombi, one with a 72° and one with a 36° corner, and no shift maps it onto itself.

Two rhombi, two fillsby eyeThick and thin rhombi, each in its own fill.Pass if there are two rhombus shapes and every thick one is filled differently from every thin one.
No repeatby eyeNo translation maps the pattern onto itself.Pass if no patch of the floor can be slid onto another so that the tiles line up. A rhombus grid in Penrose colours fails it.
Fivefold, edges drawnby eyeFivefold symmetry about the centre, with the tile edges drawn.Pass if the floor looks the same turned a fifth of a turn about its centre and the tile edges are drawn.

A check decided by eye carries the rule I apply to it. I wrote those rules down on 21 September 2026, after the first results were scored, so for those results they record how I made the calls after the fact.

What replaces it: Ask for the matching rule as well, the arcs on each tile that force the tiling, so the edges have to meet the way P3 requires.

The rules behind all of thisThis task's prompt, checks and any checker, on GitHub