Thanks to his extra pawn Black has a clear advantage.

Swapping pieces to facilitate the realization of the extra pawn.

Or 1...f5 2.Nf4 kf7 3.h4! , when 3...Bxh4? fails to 4.Rh1.

Offering more exchanges.

White later converted his extra pawn into a win.

In order to swap the active white queen, which will help Black neutralize the passed pawn on d7 and realize the extra pawn.

2.Qxe5? Bb7-+
2.Qh4 Rf6 , preparing ...Bb7, is also bad for White.

With the double intention of 7...Rxa4 and 7...Rd4. Black is winning.

Swapping queens to facilitate the realization of the extra pawn.