基本图一：取材于第六届三星杯预选赛我持黑对金俊永的对局，轮黑下。中央的黑棋被白包围，如何出头成为关键。 图一：黑１刺、３靠是最容易想到的方法，但白如图的反抗强硬，至白８，黑不行。 图二：黑１刺从另外一边冲击白的防线，白２好棋，至白４，黑虽可活棋，但白把黑封? Basic Figure 1: drawn from the Sixth Samsung Cup qualifier I held the black against Kim Jun-Yong’s game, turn dark. Central black chess surrounded by white, how to succeed as the key. Figure 1: Black 1 stab, 3 rely on the most easy to think of ways, but white as tough resistance to the map, to white 8, black not work. Figure 2: Black 1 thorn from the other side of the impact of white line of defense, white 2 good chess, white 4, although Black can live chess, but the white black seal?