The Belgian Connection (Easy square, Colin Hume) Squares with a Difference, Volume 2, 2004 A1: Heads forward and back. Cross trail through, round one to the middle of a line of four. A2: Lines forward and back. All cross trail through. B1: Swing (original partner), put her on the right. Everyone is half-way round the square. Head ladies chain across. B2: Head ladies chain to the right. Promenade new partner to the man's place (half-way round). The ladies have moved one place to their left.