Build the exact target alkane or alkene in 3D.
How To Play
1. Add carbons first. Click atoms in 3D to select up to two.
2. Select one carbon and click Add Hydrogen to auto-place and auto-bond H.
3. Every carbon must have valence 4 and every hydrogen valence 1.
4. Click the timer chip to toggle timed/untimed mode.
5. Use top-right Reset View or Zoom if the camera gets too close/far.
Build the target molecule.