(;GM[1]FF[4]SZ[19]
GN[The extension]
PC[https://senseis.xmp.net/?34PointHighApproachLowExtensionTrickPlay]AP[GoWiki:2009]
DT[2020-05-27]
C[Diagram from https://senseis.xmp.net/?34PointHighApproachLowExtensionTrickPlay

The extension]
PL[W]

AB[cd][pd][op][pp][qq][rq][pr][rr]
AW[qn][qp][rp][dq][oq][pq][qr]
LB[qs:d]

;W[nq]C[W1]MN[1]
;B[sp]C[B2]MN[2]
;W[np]C[W3]MN[3]
;B[on]C[B4]MN[4]
;W[ql]C[W5]MN[5]
;B[pn]C[B6]MN[6]
;W[rm]C[W7]MN[7]
;B[mo]C[B8]MN[8]
;W[kq]C[W9]MN[9]

;LB[qs:d]
)
