(;GM[1]FF[4]SZ[19]
GN[sente seki]
PC[http://senseis.xmp.net/?TsumegoFromGames131/Attempts]AP[GoWiki:2009]
DT[2009-06-30]
C[Diagram from http://senseis.xmp.net/?TsumegoFromGames131/Attempts

sente seki]
PL[W]

AB[ha][ab][bb][cb][hb][cc][ec][hc][dd][ed][hd][ee][he][ff][gf][hf]
AW[ea][ga][eb][gb][ac][bc][fc][gc][bd][cd][gd][ce][de][fe][ge][df][ef]

;W[db]C[W1]MN[1]
;B[dc]C[B2]MN[2]
;W[ba]C[W3]MN[3]
;B[ca]C[B4]MN[4]

;
)
