(;GM[1]FF[4]SZ[19]
GN[Base Position]
PC[http://senseis.xmp.net/?IgoHatsuyoRonProblem2/Solution]AP[GoWiki:2009]
DT[2010-06-15]
C[Diagram from http://senseis.xmp.net/?IgoHatsuyoRonProblem2/Solution

Base Position]
PL[W]

AB[kb][kc][lc][rc][md][nd][qd][of][qg]
AW[lb][mb][mc][oc][qc]

;W[qb]C[W1]MN[1]
;B[rb]C[B2]MN[2]
;W[pd]C[W3]MN[3]
;B[qe]C[B4]MN[4]

;
)
