问题图（黑先）现在的局面是白刚刚在左上方提吃一枚黑子，我们现在对盘上的强弱做一个简单的判断。黑方的上边和右上黑棋都存在着一些不安定的因素。白方右下及左下都有些薄，整个局面有些混乱，轮黑先下哪里才是最佳点呢？图一（失败）实战的进程是黑1至黑9将左上方黑棋走厚 The problem map (black first) Now the situation is white just in the upper left to eat a sunspot, we now make a simple judgment on the strength of the plate. There are some unsettling factors in Black’s upper and upper right black. White’s lower right and lower left are a bit thin, the whole situation a bit confusing, where is the best round rotation? Figure 1 (failure) The actual combat process is black 1 to black 9 will take the upper left black thick