(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?IgoHatsuyoRonProblem111/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?IgoHatsuyoRonProblem111/Solution

Solution]
PL[B]

AB[ob][nc][qc][rc][md][me][qe][re][nf][qg][pi]
AW[nd][pd][qd][rd][sd][ne][pf][pg][ph][oi][oj][qj]

;B[pe]C[B1]MN[1]
;W[oe]C[W2]MN[2]
;B[of]C[B3]MN[3]
;W[od]C[W4]MN[4]
;B[rf]C[B5]MN[5]

;
)
