The first element of the strategy is a kind of legislative strike. Initially, House Republicans decided to boycott all direct negotiations with President Obama, and then subsequently extended that boycott to negotiations with the Democratic Senate. (Senate Democrats have spent months pleading with House Republicans to negotiate with them, to no avail.) This kind of refusal to even enter negotiations is highly unusual. The way to make sense of it is that Republicans have planned since January to force Obama to accede to large chunks of the Republican agenda, without Republicans having to offer any policy concessions of their own.
Good strategy: the “do what I want or I’m taking my ball and going home” method of negotiation always works out for the douches who do it.