RE: Chess Puzzle of the Day (Jul 31, 2022) | Problema de ajedrez del día (31-Jul-2022)
I think d6 is a solid move. Castling on the queen side is already dangerous for both sides since column C is open. d6 allows to develop Bf8 and castle on the king side. b8-h2 diagonal might serve black to attack the white king after castling.
RE: Chess Puzzle of the Day (Jul 31, 2022) | Problema de ajedrez del día (31-Jul-2022)