(;GM[1]FF[4]SZ[19]
GN[Force Black into the centre]
PC[http://senseis.xmp.net/?BQM7]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM7

Force Black into the centre]
PL[W]

AB[bp][cq]
AW[co][cp][eq]
LB[eo:a]

;W[cr]C[W1]MN[1]
;B[dq]C[B2]MN[2]
;W[dr]C[W3]MN[3]
;B[dp]C[B4]MN[4]

;LB[eo:a]
)
