["g3-g4","g18-g17","d3-e4","d18-e17","g4-f5","g17-f16","f5-f4","f16-f17","c4-d4","c17-d17","o3-n4","o18-n17","f4-f6","f17-f15","f6-f9","f15-f12","f9-f10"]