(;GM[1]FF[4]SZ[19]
GN[Symmetry broken, black loses as it cannot copy white's move inside the eye]
PC[http://senseis.xmp.net/?ProvableStrategyForWinningFreePlacement25HandicapGo]AP[GoWiki:2009]
DT[2012-08-28]
C[Diagram from http://senseis.xmp.net/?ProvableStrategyForWinningFreePlacement25HandicapGo

Symmetry broken, black loses as it cannot copy white's move inside the eye]
PL[W]

AB[ba][ca][da][ea][fa][ga][ha][ia][ja][ka][la][ma][na][oa][pa][qa][ra][ab][sb][ac][sc][ad][bd][sd][ae][ce][se][af][cf][sf][ag][sg][ah][sh][ai][si][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj][nj][oj][pj][qj][rj][ak][sk][al][sl][am][sm][an][bn][sn][ao][bo][so][ap][sp][aq][sq][ar][sr][bs][cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
AW[be][bf][cn][co][bp]
CR[be][bf]

;W[bm]C[W1]MN[1]
;B[bg]C[B2]MN[2]
;W[df]C[W3]MN[3]
;B[dn]C[B4]MN[4]
;W[de]C[W5]MN[5]
;B[do]C[B6]MN[6]
;W[cd]C[W7]MN[7]
;B[cp]C[B8]MN[8]
;W[cg]C[W9]MN[9]
;B[cm]C[B10]MN[10]

;CR[be][bf]
)
