— 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 generic Archimedes buoyancy demo with a single configurable cube and density/size sliders, but entirely misses the prompt's core requirement: two crowns (pure gold vs. gilded), same-mass constraint, a vertical slider controlling crown descent, rising water level, splash effects, and the Heureka moment.
8,225 output tokens · claude-opus-4-6 · end_turn
Implements a generic Archimedes buoyancy demo with a single configurable cube and density/size sliders, but entirely misses the prompt's core requirement: two crowns (pure gold vs. gilded), same-mass constraint, a vertical slider controlling crown descent, rising water level, splash effects, and the Heureka moment.