Indeed! Computer Recreations was the absolute best. I remember implementing an algorithm from this that displayed 3d projections of a 4d rotating hypercube; then extending it to support red/blue cellophane 3d glasses (or as best as possible with a 16 colour pallette). So much fun and learnt so much!
“Zoltrix” 14.4k internal here!
Delve is fantastic, more than worth it even at full price.
What a great write-up, thank you.
There is still a Veronica! I use it regularly for searching gopherspace.