(;GM[1]FF[4]SZ[9:8]
GN[Case study]
PC[http://senseis.xmp.net/?Kokiri/yoseInvestigation]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Kokiri/yoseInvestigation

Case study]
PL[B]

AB[ba][da][ab][bb][cb][db][eb][fb][bc][dc][fc][bd][dd][fd][be][de][fe][bf][df][ff]
AW[ga][gb][hb][ac][ec][gc][hc][ad][cd][ed][gd][hd][ce][ee][ge][he][af][gf][hf][ag][bg][cg][dg][eg][fg][gg][hg][ah][bh][ch][dh][eh][fh][gh]

;B[ef]C[B1]MN[1]
;W[cf]C[W2]MN[2]
;B[ae]C[B3]MN[3]
;W[fa]C[W4]MN[4]

;
)
