(;GM[1]FF[4]SZ[19]
GN[Coupling on the edge]
PC[http://senseis.xmp.net/?EndgameCoupling]AP[GoWiki:2009]
DT[2012-01-03]
C[Diagram from http://senseis.xmp.net/?EndgameCoupling

Coupling on the edge]
PL[B]

AB[gb][hb][hc][hd][he]
AW[fb][ib][gc][ic][ed][gd][id][ge]
LB[db:a][jb:b]

;B[fa]C[B1]MN[1]
;W[eb]C[W2]MN[2]
;B[ia]C[B3]MN[3]
;W[ja]C[W4]MN[4]
;B[ea]C[B5]MN[5]
;W[da]C[W6]MN[6]
;B[ga]C[B7]MN[7]

;LB[db:a][jb:b]
)
