(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[https://senseis.xmp.net/?BeginnerExercise253/Solution]AP[GoWiki:2009]
DT[2022-11-09]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise253/Solution

Solution]
PL[B]

AB[ab][bb][cb][cc][dc][ec][ad][cd][hd][de]
AW[db][eb][fb][bc][gc][bd][dd][gd][ae][ce][ge][bf][cf][gf][dg][eg][fg]
CR[dd]
LB[aa:a]

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

;CR[dd]
LB[aa:a]
)
