✓ 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
All required features are present and physically grounded (gold 19.32 g/cm³, gilded 12.50 g/cm³, same 1000 g mass, correct volume/displacement ratios); main weakness is the custom SVG drag-slider lacks the intuitive feel of a native input and the splash trigger fires for both crowns simultaneously rather than being separated spatially.
13,951 output tokens · claude-opus-4-6 · end_turn
All required features are present and physically grounded (gold 19.32 g/cm³, gilded 12.50 g/cm³, same 1000 g mass, correct volume/displacement ratios); main weakness is the custom SVG drag-slider lacks the intuitive feel of a native input and the splash trigger fires for both crowns simultaneously rather than being separated spatially.