I'm not so sure about it. I think 29. ...Qh5 wins easier.
Positional queen sacrifice!
That's just amazing! What a strong "army" can you get with the sac.
However, earlier in the game, I like silent 4...h6, creating maybe a little bit drawish position, but preventing unpleasant pin & 16...Qg5!
Well done though!
This is not a positional sacrifice, its a tactical one, because compensation is evident and it comes soon, a positional sacrifice has a positional compensation, not a tactical one, and its not so tangible, even thou its great, congratulations!!
Here is a purely positional queen sacrifice, as early as move five.
Of course this is not my invention- it's rather established theory, and after the game I found out that it's mentioned in the recent Greet opening book.
I have analysed it a bit some 25 years ago at a cofeehouse with GM Krum Georgiev- actually he showed me the position as some "white to play and win" exercise.
'Positional queen sacrifice from my first online game. I really couldn't see any way for white to save himself after queen is taken.