Anyone know how this differs from a similar-seeming paper that was published a year ago? https://en.chessbase.com/post/acquisition-of-chess-knowledge-in-alphaz

Anyone know how this differs from a similar-seeming paper that was published a year ago? https://en.chessbase.com/post/acquisition-of-chess-knowledge-in-alphazero https://en.chessbase.com/post/acquisition-of-chess-knowledge... https://arxiv.org/pdf/2111.09259.pdf https://arxiv.org/pdf/2111.09259.pdf