From my research the English opening (1.c4!) seems a good
first move in top level chess. Although the fundamental differences
between various opening moves are small (*), and a good GM
obviously also tries to look at what the opponent usually plays,
or knows (repertoire). Yet fundamentally, it also matters to know
how theory develops, for example:
1.c4 e5 (1...c6 leads to Slav) 2. Nc3 Nf6 3. g3! Bb4! (3...Bc5 4.Nf3! e4 5.Nd4 0-0 6.Bg2 Bxc3 7.dxc3 d6 8.0-0 Re8 9.Nc2
and White maintains a slight advantage.
With some more Rybka analysis, i'm convinced that chess is a draw, with perfect play for black. After e4 e5!, and with the Ruy Lopez it seems not possible anymore to obtain a structural advantage for white. Neither with the Bobuljubow Ruy Lopez variation (8.d4) nor with the Closed RL with 9.h3, as not only the Zaitsev (10..Bb7) but maybe also the Breyer (10..Nb8) can maintain equality for black, i.e. equally valued positions.
Of course careful play for black is needed, to anticipate any winning plans for white, but i've analyzed these lines deep enough i think that a draw seems 99.999 % likely with perfect play for black.
If one would talk about 'solving' chess, ie. trying to find a forced win for white against any defence for black (like eg. in four-in-a-row) then proving chess would be a draw, also would be a 'solution' of chess. So, i now can say that chess has been 'solved', its a draw.. :)
'Proof': *if* there would be a forced win for white…