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

Discouraging the extension]
PL[W]

AB[po][dp][pq]
CR[po]
LB[oo:b][qo:a]

;W[kq]C[W1]MN[1]
;B[iq]C[B2]MN[2]
;W[oq]C[W3]MN[3]
;B[op]C[B4]MN[4]
;W[nq]C[W5]MN[5]
;B[pr]C[B6]MN[6]

;CR[po]
LB[oo:b][qo:a]
)
