sequence in which two stones are sacrificed, then one 意味

• 《囲碁》石塔絞り
  

• task for which one sacrificed one's life:    人生｛じんせい｝をかけた仕事｛しごと｝
• open connection which protects two stones at the same time:    《囲碁》ラッパ継ぎ｛らっぱ つぎ｝
• two attached stones opposing two friendly parallel attached stones separated by one space:    《囲碁》竹節｛たけふ｝