: Each theme is illustrated by exactly 54 unique positions, totaling 4,158 exercises. Key Themes : Chapters cover critical middlegame concepts such as: Tactical Motifs
Search Lichess.org for studies named or "Laszlo 5000." Several anonymous users have uploaded studies containing hundreds of positions tagged with #Middlegame . You can clone the study and download it as a PGN file. Laszlo Polgar Chess Middlegames Pgn
Laszlo argued that calculating 10 moves deep is useless if you fail to see a simple knight fork in 1 second. His middlegame PGN groups positions by pattern. For example, a single file might contain 200 "Knight Forks on c2/f2" problems. After solving 50 of them, you will never miss that fork again. : Each theme is illustrated by exactly 54