Inside the fireman are playing chess
Chess, a game of strategy, is the game that these fireman are choosing to play. On the board the white king is cornered, but not checkmated nor in check. It’s hiding behind another pawn, buying time. The only remaining white pieces are a knight and two pawns (maybe representing Jesse and Walt’s two kids). There’s no queen
The two pawns could also represent Badger and Skinny Pete.
To help improve the meaning of these lyrics, visit "Ozymandias" by Breaking Bad (Ft. Moira Walley-Beckett & Rian Johnson) and leave a comment on the lyrics box