(;GM[1]FF[4]SZ[19]
GN[Approach moves make a difference]
PC[https://senseis.xmp.net/?ApproachMove]AP[GoWiki:2009]
DT[2019-09-07]
C[Diagram from https://senseis.xmp.net/?ApproachMove

Approach moves make a difference]
PL[B]

AB[ab][db][eb][bc][dc][bd][cd][ce][cf]
AW[ba][bb][cb][fb][cc][ec][fc][hc][dd][ed][de][df]
CR[ab]
LB[aa:b][ca:b][da:a][ea:a][ac:c]


;CR[ab]
LB[aa:b][ca:b][da:a][ea:a][ac:c]
)
