The AI can prove a challenging opponent since the game lacks any difficulty settings.

You could have presented her as a more challenging and worthy opponent.

In the final regular level of the game, there are 5 challenging opponents trying to have the biggest empire value by the year 2000.

It was good to have a really challenging opponent.

What the Giants see is one of their most challenging opponents of the season.

Bethany proved to be the most challenging opponent for McPherson of the season.

I expected you to be a difficult and challenging opponent.

To find more challenging opponents, he taught five other boys how to play.

As the player wins battles against the computer, new cards become unlocked, along with more challenging opponents.

The software's AI also offered a challenging opponent in single-player games.