<p><font size="4" face="Times New Roman">1...Ka4 2.Sc6 ~ 3.R*b4#, </font></p><p><font size="4" face="Times New Roman"> 1.Kc1? <b>A</b> b3!,</font></p><p> <font size="4" face="Times New Roman"><b>1.Sd7!</b> zz. Ka6 (Ka4 ) 2.Sc5+ <b>C</b> Ka5 3.Kc1 <b>A </b> zz. b3 4.Bc3# <b>B</b>,</font></p><p><font size="4" face="Times New Roman"> 1...b3 2.K*b3 ~ 3.Bc3+ <b>B</b> Ka6 4.Sc5 # <b>C</b>, 2...Ka6 3.Sc5 + <b>C</b> Ka5 4.Bc3# B.</font></p><p> </p><p> </p><p> </p>