The outcome of the game is anyone's guess.

Scientists make educated guesses based on available data.

I'll take a guess and say that she's not coming to the party.

The guess warps were all incorrect.

I took a guess and tried to warp through the wall.

She is second guessing her decision to quit her job.

I always second guess my decisions.

I second guessed my decision to quit my job.

I'll find a way to fix it, by guess or by golly.

He decided to go by guess or by God.