Questions regarding WSC round 5 - Arrows, Lines and Circles

[Fred76]

To shed some light on this interesting history...

The puzzle first appeared in a GP Instruction Booklet here: https://gp.worldpuzzle.org/content/instr...-booklet-5 - this is a round authored by Fred, and he credits himself in the instructions.

The next GP round to feature a Palindrome Sudoku is this one: https://gp.worldpuzzle.org/content/instr...booklet-14 - this IB uses the same palindrome example. The IB contains the following sentence: "Examples in this instruction booklet are mostly from prior Sudoku Grand Prix Instruction booklets. We thank the original authors for these examples."

At that point, the credit to Fred is lost, and, I presume, the puzzle assumed fair game for future IBs. The next Palindrome Sudoku appears in 2016 Round 1, and indeed the same example is used.

I'm sorry, but you're completely wrong.

If you want to know the story of this puzzle: I created it for a czech competition in 2012.
In 2014, I authored a GP round and was asked to provide samples for the IB. I mainly provided sudoku I created in the past and asked 2 other authors for authorization to use their puzzles on the IB (and asked organizers to clearly credit them in the IB) - one of them is here too.

The truth is that WPF didn't buy copyright of 2014 GP. They started to buy copyright* of GP puzzles in 2015 (competition puzzles).
Then they used some of these puzzles in further GP rounds, without asking my authorization, and I finally asked them to stop using my puzzles, what they did.

The fact that this puzzle was used  in IB of several competitions doesn't occult the fact that I'm the only owner of its copyright and only I can decide if I give authorization for its publication. I know the fact it appears now in a WSC IB will be worst in the future (WPF rules will make think it's a WPF puzzle), but it will not change that fact. Unless someone make a copyright assignment agreement with me, I'm the owner of the puzzle's copyright. Point.

So, I repeat I'm ok for its appearance in this IB (and I know organizers didn't know it was my puzzle), but please credit me.

Fred

*In regards to copyright laws, you must have a signed copyright assignment agreement to pretend to be the owner of copyright of someone else work. I'm pretty sure WPF never did properly these copyright assignment agreement, thus in regards to laws, WPF puzzles just don't exist... I'm personnaly ok to say about the few puzzles I created for GP 2015 that copryright are owned by WPF... but not the one of GP2014.