(;GM[1]FF[4]SZ[2]
GN[White 4 captures two stones]
PC[http://senseis.xmp.net/?2x2Board]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?2x2Board

White 4 captures two stones]
PL[B]


;B[ba]C[B1]MN[1]
;W[ab]C[W2]MN[2]
;B[aa]C[B3]MN[3]
;W[bb]C[W4]MN[4]

;
)
