(;GM[1]FF[4]SZ[19]
GN[Fourth option]
PC[http://senseis.xmp.net/?312WSNotcher]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?312WSNotcher

Fourth option]
PL[B]

AB[iq][jq][kq][lq][hr][lr][mr]
AW[ip][jp][kp][lp][gq][hq][mq][nq][er][gr][nr]
LB[ks:a][ls:b]

;B[hs]C[B1]MN[1]
;W[jr]C[W2]MN[2]
;B[js]C[B3]MN[3]
;W[ir]C[W4]MN[4]
;B[kr]C[B5]MN[5]
;W[ms]C[W6]MN[6]

;LB[ks:a][ls:b]
)
