Machine Gun Chess seems to be an underplayed easier chess variant that is not trivial. I believe it is somewhat simpler than Atomic Chess in complexity. It seems that it is not played HvH online anywhere. Please add it to lichess... Thank you very much!
Please see the links below
http://www.chessvariants.org/play/erf/MachineG.html
http://www.pathguy.com/chess/MachineG.htm (You may play against yourself here, the AI is simple, but the game is not as simple as you might think it is)
Please see the links below
http://www.chessvariants.org/play/erf/MachineG.html
http://www.pathguy.com/chess/MachineG.htm (You may play against yourself here, the AI is simple, but the game is not as simple as you might think it is)