Invisilink

(Also available at https://simonduff.net/invisilink) Play the classic four-in-a-row game with invisible blocks!Four-in-a-row, also known as Captain's Mistress or Connect Four, is a simple strategy game played in childhood. Invisilink raises the stakes by hiding blocks, making the game a test of your memory and concentration, as well as four-in-a-row strategy!This game features 3 modes: regular, wh…