(;GM[1]FF[4]SZ[19]
GN[Prevent double enclosure]
PC[http://senseis.xmp.net/?BQM260/earlierPlay]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM260/earlierPlay

Prevent double enclosure]
PL[W]

AB[qp][dq]

;W[pd]C[W1]MN[1]
;B[cm]C[B2]MN[2]
;W[nq]C[W3]MN[3]
;B[pq]C[B4]MN[4]
;W[kq]C[W5]MN[5]

;
)
