✓ 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
Comprehensive ASCII-art implementation with correct physics (Au 19.32 g/cm³, fake 13.15 g/cm³, same mass), live data panel, splash effects, and Heureka animation, but the vertical slider direction is inverted (CSS rotate(180deg) + bt-lr writing-mode means dragging up increases depth rather than dragging down as the on-screen instruction promises).
6,196 output tokens · claude-opus-4-6 · end_turn
Comprehensive ASCII-art implementation with correct physics (Au 19.32 g/cm³, fake 13.15 g/cm³, same mass), live data panel, splash effects, and Heureka animation, but the vertical slider direction is inverted (CSS rotate(180deg) + bt-lr writing-mode means dragging up increases depth rather than dragging down as the on-screen instruction promises).