In the early days of mainframe programming time was too expensive and programmers too proper to write time wasting games for TSO. Besides Assembler does not lend itself easily to that kind of thing. I have written a set of TSO toys with Conway's Life, Langton's Ant and now Pseudo Go. All these can run manually or automatically and in the case of Pseudo Go it can play against itself. This game required the building of array handling constructs in macro form because Assembler lacks any useful of t... moreIn the early days of mainframe programming time was too expensive and programmers too proper to write time wasting games for TSO. Besides Assembler does not lend itself easily to that kind of thing. I have written a set of TSO toys with Conway's Life, Langton's Ant and now Pseudo Go. All these can run manually or automatically and in the case of Pseudo Go it can play against itself. This game required the building of array handling constructs in macro form because Assembler lacks any useful of that sort. I have packaged it up in a .zip file with a manual for people who want to waste their z/OS power.