(;GM[1]FF[4]SZ[19]
GN[21-24]
PC[http://senseis.xmp.net/?ShinFuDiag3]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ShinFuDiag3

21-24]
PL[B]

AB[qd][pe][on][no][po][cp][op][oq][pq]
AW[dc][oc][om][pn][qo][np][pp][qp][qq]

;B[oo]C[B1]MN[1]
;W[pm]C[W2]MN[2]
;B[kq]C[B3]MN[3]
;W[cf]C[W4]MN[4]

;
)
