(;GM[1]FF[4]SZ[19]
GN[W1 reverses through B2]
PC[http://senseis.xmp.net/?NumbersExample1]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?NumbersExample1

W1 reverses through B2]
PL[W]

AB[br][cr][dr][ds]
AW[aq][ar][cs]

;W[bs]C[W1]MN[1]
;B[as]C[B2]MN[2]

;
)
