Welcome to the realm of chess, where battles are fought with might,
A game of wits and strategy, where champions ignite.
In this app of extremes, prepare for a thrilling show,
Where hardcore chess awaits, with twists that'll make you glow.

Part 1: Engine Challenge Mode, where legends collide,
Face Stockfish variants, each with their unique stride.
Chaos, the unpredictable, in just five minutes, you'll see,
A whirlwind of moves, where victory is the key.
Mayhem, the fast-paced, with three minutes in its reign,
Engage in lightning battles, where skills are put to the strain.
And then there's Brutal, the ultimate test, the highest peak,
One minute to conquer, precision moves you must seek.

Part 2: Online Mode, the Grandmaster Arena unfolds,
Once you've conquered the engines, your title will be bold.
Challenge fellow masters, from all corners of the globe,
In thrilling battles of wits, where chess becomes your probe.

To become a Grandmaster, prove your worth and succeed,
Defeat Chaos, Mayhem, or Brutal, and you'll take the lead.
Then enter Online Mode, where formidable foes await,
Skilled players who've conquered engines, ready to debate.

When online players are scarce, fear not, there's a way,
Ten open-source engines will challenge you to play.
Stockfish and others, the highest level of chess they hold,
No limitations, pure expertise, their stories yet untold.

Within this chess realm, a user-friendly domain,
With an interface so intuitive, it won't cause you strain.
Immerse yourself in visuals, enhancing your gaming spree,
A design that captivates, the chess world you will see.

Customization options, to make the game your own,
Choose difficulty, themes, and designs, on your throne.
For this Chess Game App, an extreme experience we vow,
Intense battles, grandmasters, and triumphs that will wow.

So dive into the realm, where hardcore chess awaits,
Conquer the engines, become a Grandmaster, no debates.
Challenge the world, with skills and strategies refined,
In this thrilling chess app, may the best strategist find!