Bitcoin (BTC)

Bitcoin Puzzle

The "bitcoin puzzle" created anonymously by someone contains a reward of approximately ~1000 BTC. Its goal is to find the relevant private key in a specified range. There are 160 puzzles in total and 77 of them have been solved. View puzzle list.

What is puzzle?Who created?How difficult?How to win?

You can find the answers to all your questions on the FAQ page.

Ongoing Puzzles

Puzzle 66

Reward (BTC)6.60 BTC
Reward (USD)$397,726.43
Scanned Range(s)*4305510/33554400
Pool Speed217.62 Bkeys/s

Puzzle 67

Reward (BTC)6.70 BTC
Reward (USD)$403,752.59
Scanned Range(s)*16901/67108863
Pool Speed0 key/s

Puzzle 68

Reward (BTC)6.80 BTC
Reward (USD)$409,778.74
Scanned Range(s)*1467/134217727
Pool Speed0 key/s

*Range based. Each range contains 1 trillion private keys. Also, Test pool (Puzzle 38) supported.

Popular Tools

Cloud Search

Easy, fast and simple.

If you're looking for the easiest way to join the BTC Puzzle pool, you're in the right place.
Rent the graphics card you want at hourly rates and chase the reward.

Join Using CloudSearch
1 range(s) = 1 trillion keys1 ticket*

1 range is equal to ~1,1 trillion private keys in this pool.
Only one of them contains the private key for "Bitcoin Puzzle 66"
This private key contains a reward of $397,726.43 (6.60 BTC)

How does the pool work to win 6.60 BTC?


There are a total of 33 million ranges in the "BTC Puzzle 66", which is the easiest puzzle. Each range actually contains 1 trillion private keys. The main goal here is to find the range that contains the correct private key. The person who finds the correct range receives the full reward. Your chance for "Puzzle 66" are 1 in 29,248,890 (currently). This probability will decrease every time a new range is scanned.


All you need to join the pool is to have a GPU. You need to scan the relevant range using the graphics card. Scanning time may vary depending on the video card model and quantity. Each range scanned is your chance to find the private key containing the reward. How to join? Also remember, the next puzzle is always x2 times harder than the previous one.


You can scan ~350 ranges (or tickets) for $5 with a standard RTX 3070 on CloudSearch**. You can think of it like a lottery. (Most people say that anyway). Maybe you can rent 2x RTX 4090 and scan a range every 2 minutes. Using your own graphics card is often cheaper than CloudSearch.


When you find the right range, you can now get your reward. There are various methods to receive the reward safely. is a solo pool, but the scanned ranges are shared. The person who finds the correct range receives the full reward. When the prize is found, the pool does not know that the prize is found.


The total reward of 1000 BTC is not offered by "". 100% Anonymous. A great way to prove the reliability of Bitcoin. Thanks to the creator of this puzzle! If you have questions, visit the FAQ page. This pool uses a 100% open source client and works with proof-of-work (PoW).


Joining and using the pool is free. The pool (and everyone else) only knows the solved puzzle information. The puzzle waiting to be solved and the correct private key or range is currently unknown to anyone. You don't have to use CloudSearch. CloudSearch is simply the easiest and hassle-free way to join the pool. You can use your own graphics cards.

BTC Puzzle Character
$5 = ~350 range(s)***in three days

This means trying ~350 times to find the correct range.
Finding the right range will win you the prize.

* If you haven't figured out the puzzle yet, you've experienced each range as a "ticket".
** According to pool data. Not every GPU may offer the same performance.
*** Calculated based on one 3070 at $0.07 per hour. (in CloudSearch)

About Pool

100% Open-Source Client

The client and applications are completely open source and accessible via Github.

Go to Github

CloudSearch Powered

Rent a cloud-based GPU and join the pool with a fast and easy-to-use experience. 393 members using.

Go to CloudSearch

Proof of Work (PoW)

Each scanned range is marked as scanned with a proof. It is reliable for malicious people.

Docker Support

Use the Bitcrackrandomiser client and custom-built Docker images for the repository.

Go to Docker

Always Anonymous

No email required. None of your data is stored. Use the pool anonymously. 2377 members joined.

Not Just a Pool

There are also useful tools, Bitcoin-related private key list and more. website is a platform built on “Bitcoin Puzzle” and provides free services for this purpose.'s main goal is to provide a "solo pool" service built on Bitcoin Puzzle. Although our website is a pool website, it also offers extra tools and services.

To join the pool, you must first open a free account on the website. You can then start working in the repository by downloading the open source client shared on the "Github" page. If you wish, you can easily join the pool by using GPU rental services. In this regard, “CloudSearch” offered by Btcpuzzle allows beginners to get started very easily.

Follow this link for a detailed getting started guide.