The rules for "Pro Line4" (all variants) are the same as the respective rule for the standard Line4 variant except that 5-in-a-row does not make a win.
If I and Jason were playing "Pro Linetris", this game wouldn't have already ended (and I might win it too).
hexkid: I've never heard of this Pro Line4 being played anywhere. Incidentally, in that game you linked to, I note that Jason does have a diagonal four in a row in addition to the horizontal five in a row.
(nascondi) Giocare una partita in tempo reale con un avversario in linea è possibile! Tu ed il tuo avversario dovete impostare come predefinita l'azione “rimani su questa pagina” posta dopo il bottone MUOVI e ricaricare la pagina con il tasto F5! (TeamBundy) (mostra tutti i suggerimenti)