Smaller nit: they were never Elo points to begin with because Lichess uses the Glicko-2 system.
Based on the SCPA act only giving 10 years of protection and the 6502 coming out in 1975, it might be fine to exploit commercially. https://en.wikipedia.org/wiki/Semiconductor_Chip_Protection_...
The minimal versions don't check human move validity (see the "Read before playing" section), and d2d4 is illegal as white is in check.
Smaller nit: they were never Elo points to begin with because Lichess uses the Glicko-2 system.
Based on the SCPA act only giving 10 years of protection and the 6502 coming out in 1975, it might be fine to exploit commercially. https://en.wikipedia.org/wiki/Semiconductor_Chip_Protection_...
The minimal versions don't check human move validity (see the "Read before playing" section), and d2d4 is illegal as white is in check.