(;GM[1]FF[4]SZ[19]
GN[Yose problem]
PC[http://senseis.xmp.net/?RTGProblem1]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RTGProblem1

Yose problem]
PL[B]

AB[ic][cf][ef]
AW[gc][cd][dd][ge]

;B[ec]C[B1]MN[1]
;W[ed]C[W2]MN[2]
;B[eb]C[B3]MN[3]
;W[fc]C[W4]MN[4]
;B[bc]C[B5]MN[5]
;W[bd]C[W6]MN[6]
;B[cb]C[B7]MN[7]

;
)
