(;GM[1]FF[4]SZ[19]
GN[4,4 approach]
PC[http://senseis.xmp.net/?InvertingThe33And44Joseki]AP[GoWiki:2009]
DT[2010-12-19]
C[Diagram from http://senseis.xmp.net/?InvertingThe33And44Joseki

4,4 approach]
PL[W]

AB[qc]

;W[pd]C[W1]MN[1]
;B[qd]C[B2]MN[2]
;W[pe]C[W3]MN[3]
;B[ob]C[B4]MN[4]
;W[md]C[W5]MN[5]

;
)
