(;GM[1]FF[4]SZ[2]
GN[Moves 21-22]
PC[http://senseis.xmp.net/?LongestPossibleGame]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LongestPossibleGame

Moves 21-22]
PL[B]

AW[ba][bb]

;B[aa]C[B1]MN[1]
;W[ab]C[W2]MN[2]

;
)
