logic/math based games?

[toml_12953]

(03-08-2017 11:04 PM)pier4r Wrote:  Update Mar2018

What are video games (or board games) that you liked that are heavily based on logic or math, not necessarily advanced, and are fun to play?

I liked Dr. Nim and Think-A-Dot from ESR (Education, Science, Research Corp). Dr. Nim showed how logic gates work with a game of Nim using marbles that rolled down through plastic flip-flops. It played a mean game of Nim! Think-A-Dot used marbles dropped into a plastic frame with one state of each of eight flip-flops displayed in small windows. You dropped marbles in one of three holes on top and saw how the flip-flops changed. Quite a few games were possible. One game was to change all the flip-flops to the same color (one state showed blue in the window, one showed yellow IIRC) another was to set up an octal counter.