The first move seems to be obvious, but maybe you should take your time and think about some preparatory work first....
(;SZ[7]AW[cb]AW[eb]AW[fb]AW[cc]AW[dc]AW[ec]AW[gc]AW[bd]AW[dd]AW[fd]AW[de]AW[ee]AW[df]AW[dg]AB[ca]AB[da]AB[bb]AB[db]AB[bc]AB[cd]AB[be]AB[ce]AB[fe]AB[cf]AB[ef]AB[gf]AB[cg]AB[eg]AB[fg]C[No komi, no prisoners - white to play and draw!]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.50]PL[W]
(;W[ba]
(;B[aa];W[ge];B[gd];W[ab]
(;B[ge];W[ba];B[ad];W[ea];B[ac]
(;W[ca];B[aa]
(;W[af]
(;B[bf];W[ab];B[gb]
(;W[ga];B[aa];W[ae];B[ag];W[ab]C[And white connects the ko - jigo! RIGHT])
(;W[aa];B[fc];W[ae];B[ag];W[gc]C[And white connects the ko - jigo! RIGHT])
(;W[fc];B[aa];W[ae];B[ag];W[ab]C[And white connects the ko - jigo RIGHT]))
(;B[ae];W[bg];B[bf];W[ab];B[ag];W[aa]C[Black loses by 1 point..!RIGHT]))
(;W[ae];B[af];W[ab];B[gb]
(;W[ga];B[aa]C[Next, black connects the ko and wins by 1 point!])
(;W[fc];B[aa]C[Black connects and wins by 1 point])))
(;W[af];B[aa]
(;W[ca];B[bf];W[ab];B[gb]
(;W[ga];B[aa];W[ae];B[ag];W[ab]C[And white connects the ko - jigo! RIGHT])
(;W[fc];B[aa];W[ae];B[ag];W[ab]C[And white connects the ko - jigo!]))
(;W[bg];B[ca]
(;W[ae];B[bd];W[da];B[bf];W[ba];B[ag];W[ab];B[gb]C[Black wins!])
(;W[da];B[ae];W[ba];B[bf];W[ab];B[ag];W[ca];B[aa]C[Black connects the ko and wins by one point!]))))
(;B[ac];W[ge];B[ea];W[gd];B[fa];W[gb]C[White wins by 3 pointsRIGHT]))
(;B[ge];W[ea];B[ab]C[Jigo!RIGHT])
(;B[ad];W[ea];B[ab]C[Jigo!];W[gd];B[ge]C[Jigo again!RIGHT]))
(;W[ea];B[ba];W[gd];B[ge]C[This is pointless - white has lost 7 (!) points])
(;W[ge];B[gd]
(;W[ea];B[ge];W[ba];B[ab]C[Thanks to the ko, white gained some points, but it's still not enough: Black wins by 1 point!])
(;W[ba];B[ge]
(;W[ab];B[aa]
(;W[ea];B[ac];W[ba];B[ca];W[da];B[ba]C[Black wins by 6 points....])
(;W[ae];B[ac];W[bg];B[ad];W[af];B[ea];W[fa];B[ba]C[Black wins by 2 points]))
(;W[ea];B[ab]C[Black wins by 1 point!]))
(;W[ab];B[ge];W[ba];B[aa]
(;W[ea];B[ac];W[ba];B[ca];W[da];B[ba]C[Black wins by 6 points!])
(;W[ae];B[ba];W[bg];B[ad];W[af];B[ea];W[fa];B[ac]C[Black wins by 2 points!])))
(;W[gd];B[ge];W[ea];B[ba]C[Black wins by 7 points...!])
(;W[ad];B[ae]
(;W[ba];B[aa]
(;W[ge];B[gd];W[ab];B[ge];W[ba];B[ac];W[ea];B[aa];W[ca];B[ab]C[Black wins by 2 points!])
(;W[ea];B[ac];W[ba];B[ca];W[ge];B[gd];W[da];B[ge];W[ba];B[ab];W[ca]C[Black wins by 3 points]))
(;W[ge];B[gd]
(;W[ba];B[ge];W[ea];B[ac]C[Black wins by 1 point])
(;W[ea];B[ge];W[ba];B[ac]C[Black wins by 1 point]))
(;W[ea];B[ba];W[gd];B[ge]C[Black wins by 7 points!])))