So it's about this position, right ? Let's pick Tony's move for White, and see what happpens next :
[fen "r1b2r1k/1p4bp/8/4p2n/1P3pp1/3P2P1/5PBP/1Q2NR1K b - - 1 1"]
1... f3 2. Qc1 fxg2+ 3. Nxg2
Let's count material : with ♕♙ for ♜♝♝ (11-11), much depends on the pieces actual prospects, and neither side is much better on these grounds.
White's case is simpler : the
♘g2 belongs to
f4, but it wouldn't be misplaced at
e3, attacking a pawn, and being well centralized. White can manoeuver with his queen and rook, essentially on the c file and h6-c1 diagonal, to attack Black's many lone pawns.
The main problem White faces is his lack of pieces, meaning he cannot attack anything more than twice, whereas Black can easily defend anything twice or thrice.
Regarding Black's pieces, it's a bit more of a comedy. The
♟e5 is annoying as hell, blocking the bishop, necessary f4 defender, to be defended or the
♙d6 is passed… The
♞h5 really has nowhere to go in a nearby future, as White's own knight can prevent it from going to
d5, and it cannot stay at f6 because of the hanging pawn. But it is to be moved, for
♟h5 to be pushed at some point (and because you don't want to defend it where it stands right now).
Hopefully for Black, the
c file is his for the time being, but it won't be long before White defends
♙f2 with his king (and White's knight can chase Black's rook out of
f3 anytime). And he has many pieces, but he'll have to defend them all, and soon link his rooks, without dropping the
I think it all comes down to who will fix his problems fastest, and how White's queen can outmanoeuver Black's many pieces. If Black manages to settle down a strong defense, he should win because of numerous pieces, but that's easier said than done.