Players can only move their piece to a node connected to their current position. A win is secured by moving to a node your opponent is occupying.
Which player that can force a win in left-sorted examples can change depending on who moves first.
See BP1284 for an animated Problem about the same game.
Adjacent-numbered pages: BP1277 BP1278 BP1279 BP1280 BP1281  *  BP1283 BP1284 BP1285 BP1286 BP1287
allsorted, unwordable, notso, teach
Leo Crabbe