— 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 ASCII art and reasonable physics, but entirely misses the prompt's core requirements: no two crowns, no same-mass/different-density comparison, no vertical slider controlling submersion, no rising water level, no gilded-vs-pure-gold distinction, no Heureka moment, and uses a dark background instead of light.
8,015 output tokens · claude-opus-4-6 · end_turn
Implements a generic Archimedes buoyancy demo with ASCII art and reasonable physics, but entirely misses the prompt's core requirements: no two crowns, no same-mass/different-density comparison, no vertical slider controlling submersion, no rising water level, no gilded-vs-pure-gold distinction, no Heureka moment, and uses a dark background instead of light.