There is significant community interest in seeing the book officially ported to platforms like Chessable to allow for spaced repetition learning. Laszlo Polgar "5334 Problems & Combinations" - Chessable

László Polgár’s Chess Middlegames is a legendary, out-of-print compilation of 4,158 positions

: Seasoned club players (approx. 1600–2200 Elo) who want to build a deep library of patterns through volume training. Finding and Using the PGN