(;GM[1]FF[4]SZ[19]
GN[Example 1 - Black takes sente]
PC[http://senseis.xmp.net/?BewareOfGoingBackToPatchUp]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BewareOfGoingBackToPatchUp

Example 1 - Black takes sente]
PL[B]

AB[cj][dn][eo][dp][cq][eq]
AW[ep][fp][gp][dq][kq][dr]

;B[cp]C[B1]MN[1]
;W[cr]C[W2]MN[2]
;B[br]C[B3]MN[3]
;W[er]C[W4]MN[4]

;
)
