Seinitz's Elements

Permanent advantages

1. Material advantage

2. Bad king position 

3. Passed pawns in the middlegame 

4. Weak pawns for the opponent

5. Strong and weak squares 

6. Pawn islands 

7. Strong pawn centre 

8. Control of a diagonal 

9. Control of a file 

10. Bishop pair 

11. Control of a rank

Temporary advantages 

12. Bad piece position

13. Inharmoniously placed pieces 

14. Advantage in development

15. Concentration of pieces in

centre (centralization)

16. Space advantage