(;GM[1]FF[4]SZ[19]
GN[S4 variation 2b]
PC[http://senseis.xmp.net/?WuRenGo3/Black]AP[GoWiki:2009]
DT[2011-01-30]
C[Diagram from http://senseis.xmp.net/?WuRenGo3/Black

S4 variation 2b]
PL[B]

AB[qm][qn][oo][np][nq][oq]
AW[pn][op][pp][qp][pq]

;B[rp]C[B1]MN[1]
;W[ro]C[W2]MN[2]
;B[pr]C[B3]MN[3]
;W[rq]C[W4]MN[4]
;B[qr]C[B5]MN[5]

;
)
