Programming a Rubik's Cube Robot Using Only Prompts
neurosp1ke · x · 2026-07-15
The author attempted to build a working dual-arm robot Rubik's cube solver using only prompts for Claude/Codex, without writing any code manually or pre-teaching poses. After 3.5 days of tweaking, they concluded it's theoretically possible but hard to stabilize, especially in computer vision and robotics scenarios.
The experiment ultimately hit a timeout:
- A simulation solution was built first
- The real robot ran about 50 steps on the DK-1
- It eventually halted due to a cube recognition failure
They noted that numerous repositioning and homing maneuvers could have been further optimized. To find any viable kinematic solution, Fable quickly exhausted the subscription quota, resulting in a buggy and unsatisfactory approach. Codex Sol High later took over for patching and finishing, finally achieving a successful real-world robot rollout. The author described the experiment as 'very fun', albeit with a lot of boring downtime waiting for the E-stop.
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