I remember playing this but its a bit fuzzy. You jumped over and back acrossed the rope (elastic cord or what ever it was called ) The cord holders them moved their feet apart and you jumped over each cord and back, while the cords were apart you jumped over both cords and back. the holders then moved their feet together and you jumped over the 2nd cord while catching the 1st with your toes so that you formed a diamond.You then turned around three times and jumped out with a foot on the outside of each cord.(stradling the cords) It seems we moved the cord from the ankle to midcalf and knees ad repeated the moves. I think there was more moves but can’t remember any more, hope this jogs someones memory.