Share this article

Bitcoin Riddle offers BTC prizes

For those for whom just figuring out how to use bitcoins isn't challenge enough, there's now Bitcoin Riddle.

Updated Sep 10, 2021, 10:44 a.m. Published May 10, 2013, 4:49 p.m.
Cryptopuzzle

For those for whom figuring out how to use bitcoins isn't challenge enough, there's now Bitcoin Riddle.

A project by reddit user Fab1anFab1an, Bitcoin Riddle is to the diehard cryptocurrency fan what the New York Times Sunday crossword is to the more linguistically inclined.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters

"This is actually quite fun to watch,"

commented Bitcoin Forum user Bitcoinm. "I'm surprised people are able to figure these out, most look pretty tricky."

For each puzzle, Bitcoin Riddle offers an obvious prize: solve the mystery of the private bitcoin key, and the currency in the account is yours. Riddle Number Eight ("The Savage Beast"), for example, promised a reward of 0.2 BTC ... around $24 or a little over £15.

By all appearances, solving the riddles is not for the faint-hearted or numerically challenged.

"The Savage Beast," for example, was "mind blowing," wrote reddit user Bitco. "Got stuck analyzing the translations of hieroglyphs that mention hunting :p"

In addition to offering a bit of bitcoin to puzzle-solvers, Bitcoin Riddle also encourages site visitors to donate to the next pot at the bitcoin address 1PfE9rrwbimLa5xcpQpueLAhmEDBdwpHvU.

While each riddle starts with three basic clues, would-be puzzle-solvers can also access additional, bonus hints. For now, those extra hints are free, but it appears that Bitcoin Riddle will eventually start charging for those (a suggested price of 0.003 BTC, or around $0.36 is given with one hint), with the funds going toward the next puzzle's prize pot.

(And, yes, once the riddle is solved, the still-frustrated can view the solution online. For example, the answer to Riddle Number Six: "The Way of the Satoshi" -- with the clues 1) 2.05, 5.50, 2) http://imgur.com/EsKlPig and 3) https://cryptobin.org/f250h2q1 -- was "Leo & Victoria". Getting that answer involved, among other things, identifying a Martian crater ("Victoria," with the coordinates 2.05 and 5.50) and using the nonce value from bitcoin's genesis block for decrypting on cryptobin.)

So there's your weekend activity sorted.

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

Dogecoin Slides Alongside Bitcoin, Memecoins as Traders Pare Risk Bets

DOGE (Virginia Marinova/Unsplash)

Dogecoin's immediate downside momentum appears exhausted, with $0.1372 acting as a crucial short-term support.

What to know:

• Dogecoin fell sharply below key support levels following the Federal Reserve's rate cut announcement.

• The critical support level of $0.1407 failed, leading to a significant increase in selling volume and a session low of $0.1372.

• Dogecoin's immediate downside momentum appears exhausted, with $0.1372 acting as a crucial short-term support.