Bulls & Cows

About the Bulls & Cows

The Bulls & Cows on ToolHaven is a free, browser-based tool that helps you a code-breaking puzzle: crack the secret 4-digit number in 10 guesses. Bulls mean right digit in the right spot, cows mean right digit but wrong position. Use the clues from each guess to narrow it down. It runs entirely in your browser, so no data is sent to any server, and no account or signup is required. Whether you are a student, professional, or just someone looking for a quick answer, this tool gives you accurate results in seconds.

How to use the Bulls & Cows

Using this tool is straightforward. The game generates a secret 4-digit number with all unique digits (no repeats). Type any 4-digit guess (all different digits) and press Enter. Normal mode: 🐂 Bull = right digit, right position. 🐄 Cow = right digit, wrong position. Easy mode: each digit turns green (right spot) or yellow (wrong spot) like Wordle.

Results are updated instantly as you enter values, so there is no need to click a submit button. You can adjust inputs freely and compare different scenarios in real time.

Why use ToolHaven?

ToolHaven offers 178+ free online calculators and tools across categories including Finance, Health, Math, Education, and more. All tools are free to use, require no installation, and work on any device. Your inputs never leave your browser, so your data stays private. The Bulls & Cows is part of our Fun collection. Explore related tools in the sidebar to get more done in one place.