(;GM[1]FF[4]SZ[5:1]
GN[white throws in twice]
PC[http://senseis.xmp.net/?LinearBoards]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LinearBoards

white throws in twice]
PL[W]

AB[ca]

;W[da]C[W1]MN[1]
;B[ea]C[B2]MN[2]
;W[ba]C[W3]MN[3]
;B[aa]C[B4]MN[4]

;
)
