(;GM[1]FF[4]SZ[4]
GN[Moves 23-26]
PC[http://senseis.xmp.net/?LongestPossibleGame]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LongestPossibleGame

Moves 23-26]
PL[B]

AB[aa][ba][ab][bb][cb][db]
AW[ac][bc][cc][dc][cd][dd]

;B[ad]C[B3]MN[3]
;W[da]C[W4]MN[4]
;B[ca]C[B5]MN[5]
;W[bd]C[W6]MN[6]

;
)
