Parts of https://www.informit.com/store/art-of-computer-programming-volume-4b-combinatorial-9780201038064 https://www.informit.com/store/art-of-computer-program

Parts of https://www.informit.com/store/art-of-computer-programming-volume-4b-combinatorial-9780201038064 https://www.informit.com/store/art-of-computer-programming-v... are covering DLX and friends, if I have the link correct. (Linking to his publisher's page, as I think that is his preference.) On his homepage, he also links "A Potpourri of Puzzles" at https://cs.stanford.edu/~knuth/fasc9b.ps.gz https://cs.stanford.edu/~knuth/fasc9b.ps.gz.