— Two crowns — Same mass, different density — Vertical slider — Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement — Rising water level — Splash effects ✓ Physics correct — Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML
Implements a general Archimedes buoyancy simulator with a single draggable object and horizontal density/size sliders, but entirely misses the prompt's core requirements: no two crowns, no vertical fall-into-water slider, no Heureka animation, no splash effects, and dark background instead of light.
10,153 output tokens · claude-opus-4-6 · end_turn
Implements a general Archimedes buoyancy simulator with a single draggable object and horizontal density/size sliders, but entirely misses the prompt's core requirements: no two crowns, no vertical fall-into-water slider, no Heureka animation, no splash effects, and dark background instead of light.