Euclidea – Geometric construction game with straightedge and compass
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Submission timeline
2007–2026One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.
First comments on top threads
HN comment orderLooks very similar to Euclid the Game which I enjoyed working my way through many years ago: https://kasperpeulen.github.io
It's great to see all this straightedge and compass stuff turned into a game, and I absolutely applaud the developers for launching it. The above math, plus some graph theory (biconnected components etc.) is what drove D-Cubed's DCM 2D component dated, which powered the sketcher portion of many parametric MCAD systems after D-Cubed's launch by John Owen in 1989. See his paper "Algebraic Solution for Geometry from Dimensional Constraints" referenced on the Siemens PLM site…
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
- Breakout years
- 2
- Total points
- 245
- Total comments
- 66
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking
Every submission
| Date | Title as submitted | By | Points | Comments |
|---|---|---|---|---|
| 2016-12-26 | Geometric Constructions Game with Straightedge and CompassFirst breakout | karimf | 112 | 39 |
| 2018-10-19 | Euclidea – Geometric construction game with straightedge and compassBest thread · Latest 20+ point return | elasolova | 129 | 27 |
| 2022-10-14 | Euclidea: Geometric construction game with straightedge and compass | phantom_of_cato | 2 | 0 |
| 2025-09-20 | Euclidea – Geometric constructions game with straightedge and compass | vismit2000 | 2 | 0 |