I guessed the game just by “show HN” title :) We played this game a lot in the Urals during high school, but upon arriving in Moscow for higher education disco

I guessed the game just by “show HN” title :) We played this game a lot in the Urals during high school, but upon arriving in Moscow for higher education discovered that locals don’t know about it. Good memories. I implemented a version of it in MIDletPascal in my 10th grade. Another popular modification was “rivers” which would drown any unit placed in the next turn, and also support for 3rd and 4th player, you just have to have enough pens of different colors :)