(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem15/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem15/Attempts

Variation]
PL[W]

AB[kb][dc][ic][jc][dd][ee][fe][he][je][ff]
AW[ib][cc][gc][hc][cd][de][df][ef][ch]

;W[db]C[W1]MN[1]
;B[eb]C[B2]MN[2]
;W[fb]C[W3]MN[3]
;B[ea]C[B4]MN[4]

;
)
