Plan out the production line first.
The methane disassembler should strip off three hydrogens and leave one intact. The nitrogen disassembler should break the nitrogen molecules in to individual molecules.
This level is very similar to the previous one, only with a few more bits and pieces. Check your previous solution if you get stuck with the methane or hydrogen.
If you have trouble creating or breaking triple bonds, try using a parked waldo or a drive-thru bonder, or both. This example creates the cyanide by using both ideas. Note that the α input molecule is arranged lower down than you might expect, and note that a rotation is used to save time.