? Extraction code:? k3cg？ The New Concept of Opening and Layout of Chess in China;
1, the starter completed seven steps and crossed the river without arms. This is the completion of this party layout. You can set a name for this layout, but this is not the only name. "Local seven steps" is a series of layouts. According to different moves, different seven-step layouts have their own unique opening names, as shown in the figure.
2. Within seven steps of the opening party, and there are arms crossing the river, the layout of this party is completed here. You can set a name for this opening layout. Crossing the river is still a series of names, which are distinguished by different crossing situations of unilateral 1-7 steps (crossing the river 1-7 series) and given different opening names.
3. At the beginning, the party was the first to cross the river with weapons, which was also the completion of the layout and could be named after it.