(;GM[1]FF[4]SZ[19]
GN[If B just descends, W descends too, then sacrifices two stones to make a dead eye shape.]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem103/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem103/Attempts

If B just descends, W descends too, then sacrifices two stones to make a dead eye shape.]
PL[W]

AB[fa][cb][eb][gb][cc][fc][bd][fd][gd][ce][he][cf][hf][dg][fg]
AW[bb][db][hb][jb][gc][hc][cd][dd][ed][hd][ee][fe][ge]

;B[ca]C[B4]MN[4]
;W[da]C[W5]MN[5]
;B[dc]C[B6]MN[6]
;W[ec]C[W7]MN[7]
;B[fb]C[B8]MN[8]
;W[bc]C[W9]MN[9]
;B[ea]C[B10]MN[10]

;
)
