5.Bg4...c66.f3...Nd6
i3
(delete 1-ply diagram)
Wg7
7.i3...Wg7
Wd2
Bb6
8.Wd2...Bb6
c3
Nf4
9.c3...Nf4
Rd1
Nxd3 if Rxd3 then dxe4
dxe4 Nxe4
We finished move 10 by Black, which is this:10.Rd1...Nxd3(Black announces conditional move: if Rxd3 then dxe4)
From here I don't understand White's move 11. White should announce a legal move based on the board above. Or am I confused?
I play Rxd3, which triggers dxe4, to which I play Nxe4.
Ok thanks.11.Rxd3...dxe412.Nxe4
Nxe4
5.Bg4...c6
6.f3...Nd6