Which comes after the board game Mastermind, which was created in 1970 (https://en.wikipedia.org/wiki/Mastermind_(board_game))
I was exposed to this book in about 1975 when I was in detention in the math teacher's room. It set me on a path to programming.
Notably DEC machines like the PDP-11 gave a timesharing BASIC experience that was similar to having your own Apple ][ or TRS-80 but a little bit better, probably the best thing was saving your files on a hard drive.
https://www.simon.com/mall/the-mall-of-new-hampshire
They built it around 1980 when they built 93 as a ring road going around the city and I remember Sears immediately moving from a downtown location at the North End of Elm street to the mall and then most of the other department stores on Elm going out of business shortly thereafter.
As much as I could complain about the anti-pedestrian development of Southern NH that wants to be like a human lung and have exactly one path through the hierarchy from here to there [1] I can say my family did profit from Rt 93 because it caused the neighborhood I was in to develop so that the value of my house went up 1500%.
[1] this guarantees you'll encounter multiple traffic jams when multiple parts of the hierarchy get overloaded
After DEC killed its first microcomputer projects (not wanting to compete with its own minicomputer business) in 1974, Ahl left DEC to found Creative Computing and catalyze the microcomputer (and BASIC gaming) revolution of the 1970s. DEC later realized its mistake in ignoring the growing PC market, but never became a major player until they were eventually (and perhaps poetically/ironically) acquired by Compaq.
https://en.wikipedia.org/wiki/David_H._Ahl
Edit: I thought this companion guidebook was interesting and wonder if DEC ever published its sequels:
https://archive.org/details/understanding-mathematics-and-lo...
The program is named "Word"
(Technically there are also more colors. I submit that the number of colors is not considered part of the ruleset of Mastermind.)
In Mastermind all feasible candidates are equiprobable (assuming the cluegiver isn't biased), but in Wordle we can use external statistical information (how likely is 'Y' to be letter #2? any letter?). Since Wordle uses a dictionary of 2331 possible words + 10657 additional words that can be used as guesses (so 12966 words in total). Out of a theoretical total of 4K five-letter English words, or 26P5 = 65780 five-letter permutations of letters (most gibberish). As such, you can often still gain information from trying a candidate word which you know cannot be the solution word (e.g. one letter known to be wrong position or missing).
Because OCT 31 == DEC 25