Number Baseball

Digit notes

Solo record

Number Baseball is a popular Korean code-breaking game, also known as Bulls and Cows. Guess a secret number made of 3 (or 4) different digits from 0 to 9. A 0 may come first.
A digit in the right place is a strike (S). A digit that is in the number but in the wrong place is a ball (B). If none of your digits are in the number, it is an OUT.
Example: if the answer is 427 and you guess 471, the result is 1S 1B.
Solo guessing: crack the number within 10 guesses to clear the game. Your fewest guesses is kept as your best record.
vs AI: set your own secret number, then take turns guessing each other's number. You guess first and the AI also guesses once in the same round. The first to crack the code wins; if you both crack it in the same round, it is a draw.

Type with the on-screen keypad or your keyboard digits. Press Enter to guess and Backspace to delete.
Tap a digit in Digit notes to cycle its mark: crossed out (not in the number) or circled in green (in the number).