(;GM[1]FF[4]SZ[19]
GN[Seki]
PC[http://senseis.xmp.net/?CapturingRaceExercise4/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?CapturingRaceExercise4/Solution

Seki]
PL[B]

AB[da][db][dc][ec][fc][hc][ic][kc][cd][ed][gd][ce][de][ee][he]
AW[ea][cb][fb][gb][bc][cc][gc][bd][fd][be][fe][cf][df][ef][gf]

;B[hb]C[B1]MN[1]
;W[ga]C[W2]MN[2]
;B[ha]C[B3]MN[3]
;W[ca]C[W4]MN[4]

;
)
