Notes concerning “Illinois PLATO”

• Skew tilesets 02021-02-14 (updated 02021-02-24) (7 minutes)
• Beyond overstrike 02021-10-10 (updated 02021-12-30) (13 minutes)
• Pipelined piece chain painting 02021-10-10 (updated 02021-12-30) (23 minutes)