(;GM[1]FF[4]SZ[19]
GN[Mineshaft]
PC[http://senseis.xmp.net/?MineshaftTesuji]AP[GoWiki:2009]
DT[2014-04-24]
C[Diagram from http://senseis.xmp.net/?MineshaftTesuji

Mineshaft]
PL[B]

AB[ga][gb][dc][gc][bd][cd][dd][df][cg]
AW[cb][db][cc][ec][ed][ee][ef]
CR[ga][gb]
LB[fa:a]

;B[eb]C[B1]MN[1]
;W[fb]C[W2]MN[2]
;B[ea]C[B3]MN[3]

;CR[ga][gb]
LB[fa:a]
)
