(;GM[1]FF[4]SZ[9]
GN[Solution]
PC[https://senseis.xmp.net/?BeginnerExercise146/Solution]AP[GoWiki:2009]
DT[2022-10-23]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise146/Solution

Solution]
PL[B]

AB[eb][fb][gb][gc][hc][ed][gd][de][ee][fe][cf][df][ff][bg][eg][fg][ch][eh][ci]
AW[db][cc][dc][ec][fc][dd][fd][hd][ce][ge][gf][cg][dg][gg][dh][fh][gh][di][ei][fi]
CR[ed][de][ee][fe][cf][df]

;B[be]C[B1]MN[1]

;CR[ed][de][ee][fe][cf][df]
)
