# Zden Level 4: published solution

[Zden's puzzle page](https://crypto.haluska.sk/) identifies the target as `1cryptoRMRnj7Q9fgToxTRvejLnx3QRPq` and links [mmorsl's solution article](https://steemit.com/bitcoin/@mmorsl/solution-of-the-bitcoin-crypto-puzzle-level-4-by-zden) as "Solution article by the winner." That explicit credit is the source of the record's solver attribution to [mmorsl](https://steemit.com/@mmorsl).

The article describes two overlapping grids marked by dots and circles. Seventeen quadratic Bézier curves each supply three characters, giving the 51 characters of an uncompressed WIF. Circle radii determine ordering, while the grid positions map to characters. This is a summary of the published explanation, not a new reconstruction of the key.

The WIF in the article's introduction is explicitly an example of the format, not the Level 4 answer. It must not populate this record's key.