水晶石</SPAN>
                          
图1,这是一道死活题的棋型。</SPAN>
 
              
    图2，黑先，黑1</SPAN>是此时杀白的好手</SPAN>
   </SPAN> 图3,</SPAN>白若提，则黑3</SPAN>点入。白若A</SPAN>位接，黑就在B</SPAN>位破眼。白若B</SPAN>位接，黑就走A</SPAN>位破眼。白死。</SPAN>
 阅读全文>>