7 variants of the mill game. Nine Men's Morris, Lasker Morris, Morabaraba, Shax, and three size variants. Place your men, form a mill of three in a row, remove an opponent's piece. Then slide and trap.
Morris is a two-phase game. First you place your men onto the intersections of concentric rings. Form a mill (three in a line) and remove one of your opponent's pieces. Once all men are placed, slide them along the lines to form new mills and trap your opponent.
The classic form played since antiquity. Three concentric squares connected by midpoints. Nine men per side, placement phase then movement phase. Form a mill to remove an opponent's man.
engine:
topology:
type: graph
graph: concentric-rings
rings: 3
midpoints: true
players: [white, black]
plugins:
morris:
menPerPlayer: 9
flyingThreshold: 3Nine Men's Morris — three rings, nine men, mill to capture
Emanuel Lasker's improvement. Ten men per side and the option to place a new man or move an existing one on any turn, removing the strict placement-then-movement divide.
engine:
topology:
type: graph
graph: concentric-rings
rings: 3
midpoints: true
players: [white, black]
plugins:
morris:
menPerPlayer: 10
laskerRule: true
flyingThreshold: 3Lasker Morris — place or move on any turn
Every morris variant is playable with AI opponents at multiple difficulty levels.