(;GM[1]FF[4]SZ[9]
GN[The Ko Fight 1]
PC[http://senseis.xmp.net/?PracticalEndgameTest1/Solution4]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?PracticalEndgameTest1/Solution4

The Ko Fight 1]
PL[B]

AB[bb][cc][ic][cd][ed][gd][hd][id][be][fe][he][af][cf][df][ef][ff][bg][fg][gg][hh][ei][fi][gi][hi]
AW[ba][cb][eb][ib][bc][dc][fc][gc][hc][dd][fd][de][ee][ge][cg][dg][eg][ah][bh][dh][eh][fh][gh][ci][di]

;B[hb]C[B1]MN[1]
;W[ha]C[W2]MN[2]
;B[ia]C[B3]MN[3]
;W[hg]C[W4]MN[4]
;B[ig]C[B5]MN[5]
;B[gb]C[B7]MN[7]
;W[fb]C[W8]MN[8]
;W[hf]C[W10]MN[10]

;
)
