▁With ▁sp ades ▁tr ump , ▁North ▁has ▁the ▁lead . ▁South ▁needs ▁three ▁of ▁the ▁last ▁five ▁tr icks . ▁He ▁leads ▁dummy ' s ▁club ▁to ▁knock out - s que e ze ▁East . ▁If ▁East ▁disc ards ▁a ▁tr ump , ▁South ▁will ▁be ▁able ▁to ▁take ▁two ▁tr umps ▁in ▁his ▁hand ▁and ▁r uff ▁a ▁diam ond ▁in ▁dummy . ▁If ▁East ▁disc ards ▁anything ▁else , ▁South ▁r uff s ▁low ▁and ▁leads ▁a ▁diam ond , ▁to ▁win ▁two ▁tr umps ▁and ▁a ▁red ▁suit ▁trick , ▁or ▁two ▁tr umps ▁and ▁a ▁diam ond ▁r uff , ▁depending ▁on ▁how ▁East ▁def ends . ▁▁ ▁The ▁r uff ▁of ▁the ▁ 8 ▁in ▁South ' s ▁hand ▁still ▁oper ates ▁a ▁s que e ze ▁if ▁the ▁East - West ▁hands ▁are ▁switched , ▁so ▁the ▁position ▁is ▁an ▁automatic ▁s que e ze : ▁ ▁South ▁r uff s ▁the ▁ 8 ▁with ▁the ▁ 8 , ▁and ▁West ▁is ▁back w ash - s que ez ed . ▁The ▁thre ats ▁are ▁the ▁same ▁as ▁in ▁the ▁prior ▁case , ▁where ▁East ▁is ▁s que ez ed . ▁But ▁the ▁position ▁is ▁characteristic ▁of ▁a ▁back w ash ▁s que e ze : ▁West ▁is ▁s que ez ed ▁in ▁three ▁su its ; ▁one ▁of ▁the ▁thre ats ▁is ▁against ▁West ' s ▁ability ▁to ▁lead ▁tr ump ▁effectively ; ▁there ▁is ▁no ▁struct ural ▁two - card ▁men ace ▁consisting