Battleship!

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Here, you'll play a randomness game against an opponent.

Specifically, you'll be playing a game that's a lot like battleship. Importantly, you'll be playing against an opponent who has previously placed their ship (and is not doing it live).

Instead of playing on one big board that remains across turns (like in normal battleship), you'll play on a new mini-board each turn.

Here's how it will work:

Your opponent has placed a ship in a random tile on each trial. They don't want you to guess its location, so they are trying to be unpredictable. They generated these sequences previously, so you're just playing against the choices they previously made. (For that reason, the game will go fast!)

You will be trying to guess the random tile, thus sinking your opponent's ship. Remember that your opponent previously placed their ships in a way that was unpredictable.

The game will last 150 turns in total.

To continue, press the → key on your keyboard.

Let's go through a turn in the game. Your opponent has placed their ship in a random tile.

The placements were set by a real preson, but this is now just a computer re-creating their choices, so the choices will happen immediately.

So, you'll be able to start guessing immediately at the start of each turn.

Guess where your opponent placed their ship. You have 3 guesses!

After you guess, you'll be able to see the ship's real location. In the real game, we'd then move on to a new turn of the game, allowing you to guess again on the next placement of the ship.

Press the → key to proceed.

The rest of the game will look just like this.

Remember, you're trying to guess where your opponent hid the ship, and your opponent is trying to place the ship in a random and unpredictable tile.

There will also be a point system in the game, just to make things more engaging. Every time you computer can't get your opponent's ship, they'll get +1. On the other hand, if you do guess it correctly, then you'll get +4 if you guess it on the first try, +3 if you guess it on the second try, and +2 if you guess it on the third try.

Ready to play? If so, press the → key.

Please answer the following questions.

Please describe the task you had to complete in this study


If you had to guess, what do you think was the purpose of this study?


Did you feel that your opponent was predictable?


What is 1 + 1?



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