Related Clues:

• Course before contingencies
• Preferred option for proceeding
• First stab
• Preferred strategy
• Two-dimensional chart artist turned over
• *Flat
• Main course of action
• Starter course?
• Flat design principal dispenses with central heating
• In two-dimensions
• Something to try first
• Strategy that’s deployed first
• Opening strategy
• Preferred strategic option
• A technical alternative to “flat”