I think there's a typo in HAKMEM: item 70 is a chess problem purportedly stolen from Lasker's Chess for Fun, Chess for Blood. As far as I can tell, it is probl

I think there's a typo in HAKMEM: item 70 is a chess problem purportedly stolen from Lasker's Chess for Fun, Chess for Blood. As far as I can tell, it is problem 66 from Lasker's book, on page 145 [1]. However, there's a crucial mistake: the white bishop is supposed to be on QB8 (f8), not QB7 (f7). HAKMEM's version [3] is still a mate in 3 like advertised, but the original problem as Lasker has it [2] is much more interesting. [1] You can see it on Google Books https://books.google.ca/books?id=y90UTQeLeeIC&pg=PA145 https://books.google.ca/books?id=y90UTQeLeeIC&pg=PA145 [2] FEN for Lasker's version: 5B2/6P1/1p6/8/1N6/kP6/2K5/8 w - - 1 1 [3] FEN for HAKMEM's version: 8/5BP1/1p6/8/1N6/kP6/2K5/8 w - - 1 1