(;GM[1]FF[4]SZ[19]
GN[Drop back and split?]
PC[http://senseis.xmp.net/?BQM48]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM48

Drop back and split?]
PL[B]

AB[jd][od][pn][pp]
AW[dc][dp][jp][nq]
LB[dn:a][en:c][fn:d][eo:b][fq:e]

;B[cn]C[B1]MN[1]
;W[dk]C[W2]MN[2]
;B[fp]C[B3]MN[3]
;W[cq]C[W4]MN[4]

;LB[dn:a][en:c][fn:d][eo:b][fq:e]
)
