(;GM[1]FF[4]SZ[19]
GN[6 at 1]
PC[http://senseis.xmp.net/?BeginnerExercise164/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise164/Solution

6 at 1]
PL[B]

AB[bc][cc][be][ce][fe][df][ef][cg][fg][ch][ci][cj]
AW[bb][cb][dc][de][ee][bf][cf][ff][gf][bg][bh][dh][bi]

;B[dd]C[B1]MN[1]
;W[ed]C[W2]MN[2]
;B[ec]C[B3]MN[3]
;W[cd]C[W4]MN[4]
;B[fd]C[B5]MN[5]
;W[dd]C[W6]MN[6]
;B[db]C[B7]MN[7]

;
)
