If you are looking for the text to use in a chess engine or viewer, here is the PGN for that specific game:

"Unmitigated Pugnacity" is a phrase famously used by the legendary chess commentator and author to describe a specific game played between Richard Reti and Savielly Tartakower in Vienna, 1910 .

: Reti (playing White) sacrificed his Queen to force Tartakower’s King into a position where it was checkmated by a double check from a Bishop and a Rook. The PGN (Portable Game Notation)

The phrase refers to the relentless, aggressive nature of the game, which is one of the most famous "miniatures" in chess history, ending in a stunning double-rook sacrifice and a smothered mate in just 11 moves. The Famous Game (Reti vs. Tartakower, 1910)

Unmitigated Pugnacity.pgn