(;GM[1]FF[4]SZ[19]
GN[First, reduce liberties in sente]
PC[http://senseis.xmp.net/?LeatherScrollProblem71/Solution]AP[GoWiki:2009]
DT[2012-01-31]
C[Diagram from http://senseis.xmp.net/?LeatherScrollProblem71/Solution

First, reduce liberties in sente]
PL[W]

AB[bb][db][bc][ec][cd][dd][ed]
AW[eb][fb][fc][ad][bd][fd][be][ce][de][ee]

;W[cc]C[W1]MN[1]
;B[dc]C[B2]MN[2]
;W[da]C[W3]MN[3]
;B[cb]C[B4]MN[4]

;
)
