(;GM[1]FF[4]SZ[19]
GN[Professional Practice]
PC[http://senseis.xmp.net/?BQM399]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM399

Professional Practice]
PL[B]

AB[dd]
AW[fc][df]
LB[ec:c][fd:a][de:d][ef:b]

;B[cf]C[B1]MN[1]
;W[cg]C[W2]MN[2]
;B[ce]C[B3]MN[3]
;W[dg]C[W4]MN[4]

;LB[ec:c][fd:a][de:d][ef:b]
)
