— 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
Competent general Archimedes simulator with good physics and animation, but fundamentally wrong deliverable — no crowns, no vertical crown-dipping slider, no gilded/gold crown comparison, no Heureka moment, and dark background violates light-bg requirement.
11,586 output tokens · claude-opus-4-6 · end_turn
Competent general Archimedes simulator with good physics and animation, but fundamentally wrong deliverable — no crowns, no vertical crown-dipping slider, no gilded/gold crown comparison, no Heureka moment, and dark background violates light-bg requirement.