(;GM[1]FF[4]SZ[19]
GN[Var 1]
PC[http://senseis.xmp.net/?HikaruProblem4/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?HikaruProblem4/Solution

Var 1]
PL[B]

AB[db][bc][cc][dc][ed][ee][df][ef][dg][ch][ci][bj][dj][bk]
AW[bb][ac][bd][cd][cf][ag][cg][bh][bi][aj]
CR[df][ag]
LB[ce:a][ai:b]

;B[be]C[B1]MN[1]
;W[bf]C[W2]MN[2]

;CR[df][ag]
LB[ce:a][ai:b]
)
