(;GM[1]FF[4]SZ[19]
GN[Why the invasion is not so good]
PC[http://senseis.xmp.net/?BQM213]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM213

Why the invasion is not so good]
PL[W]

AB[oc][qd][qj][bl][bm][pn][co][cp][jp][lp][pp][cq][lq][cr][mr][nr]
AW[dd][bj][dj][cm][dn][do][lo][dp][mp][dq][jq][nq][oq][dr][or]
LB[qq:z]

;W[iq]C[W1]MN[1]
;B[ko]C[B2]MN[2]
;W[ln]C[W3]MN[3]
;B[hp]C[B4]MN[4]

;LB[qq:z]
)
