One of Black's main problems in this e5 chain that almost certainly came from a French Defense is a cramping that prevents him from posting his best defensive piece, the king's knight, on its best and most active defensive square, f6. White's mating attack comes easily and naturally with either an advance of the f-pawn or a rook lift to the third rank, both of which he can accomplish in two moves here. Given some free moves she will play Rf1-f3-h3 or f4-f5-f6 and mate Black.
That said, he doesn't actually have free moves because of his lag in development, which translates into a weakness of his d4 pawn. If White immediately goes for the jugular after 1. ... O-O 2. Rf3? he loses it and has no time to start his attack, since 2. ... Nc6 wins the pawn. After 1. ... O-O White's best try is probably to overprotect d4 with Nb1-c3-e2 and Ra1-d1 before launching his attack. Still, the weakness of d4 majorly hampers White's ability to start his attack in the first place.
@playerafar
You make a compelling argument that modifying the castling rules could lead to an increase in draws at higher levels of play. Your suggestion to allow either player to claim a draw instantly, regardless of whose turn it is, is an intriguing one. It would indeed simplify the process and eliminate the need for mutual agreement.
However, as you acknowledged, this change could raise objections from players who feel that their hard work and skillful play are being undermined by the ability to force a draw at any moment. The issue of time pressure and clock management is a crucial aspect of competitive chess, and introducing this rule could alter the strategic landscape significantly.
The second scenario you presented, involving a King and h-pawn versus a lone King on the h-file, is indeed a complex and nuanced situation. While it may be considered a book draw, the possibility of promoting the pawn to a queen or rook means that the game is not necessarily a guaranteed draw. This highlights the intricate nature of chess and the need for careful consideration when evaluating potential rule changes.