This is a CHALLENGE cache
A challenge cache requires you to have fulfilled a specific task before logging it as a find.
Logging requirements
Cachers may sign a challenge cache’s physical log at any time.
However, the challenge cache may be logged as found online AFTER the log is signed AND the challenge tasks have been met and should be documented in the online log.
Logs without the required evidence included, will be deleted without notice.
Use of the Project-GC log is acceptable and recommended.
The Cache
The cache can be found at the posted coordinates.
The Difficulty rating reflects the challenge and the Terrain rating reflects the access to the cache.
The Challenge

To qualify for this challenge you must complete ONE FULL LINE of the DT grid in any direction (across, down or diagonal) using NINE DIFFERENT cache types (Wherigo, Trad, Multi, Mystery (unknown), Virtual, Earthcache, Event cache, Mega Event, CITO, Letterbox.
The caches can be found on any date.
The caches can be found anywhere in the world. Previous finds are allowed.
In your "found it" log please specify which line, you are using AND include your list of the NINE caches, the types and the dates found OR attach the automatic log generated by Project-GC (probably easier)

This Challenge cache is included in the Map of Victoria Geo-Art and has been placed to coincide with the Parkville Mega
The challenge is: complete a row, column, or diagonal of your Difficulty/Terrain grid using different Geocache types. This will require at least 9 unique cache types, each with a different D/T rating. You must post your qualifying caches prior to, or at the time of your "found it" log.