- Game after early queen trade. See Philidor opening for example:
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 *
- Color-square strategies. When and how? Masters mention it often, books and material cover only the early basics.
- Piece play - the art of. See certain Sicilians and again, early middlegames without queens and/or middlegames with static center.
:tup