ogham alphabet and TIr na nOg archaeology challenge and crazy sudoku with just 4 numbers filled to start with :-o

Click HERE to join the quest to find the modern-day location of Tír na nÓg.

You What ?

An intriguing invitation in a recent Scouting Ireland email notice brings you to this:
https://www.scouts.ie/Scouter/Programme-Scouter-Stuff/All-Section-Programme-Resources/37AS-SI_ProgrammeResources_TirNanOg_Handbook_22-04-2020.pdf

Might need to do some Ogham decoding. From Cub Scout camp around 2015 I think, this:

That and crazy sudoku found by Kate might keep me busy for a while!!!
Kate says "Look what I found https://cracking-the-cryptic.web.app/sudoku/2QM8JHJ4HB
https://youtu.be/hAyZ9K2EBF0 a video to help."

Sudoku rows, columns and boxes with unique 1 to 9 as in usual sudoku.
Add same unique 1 to 9 rule for two diagonals.
Add knights move rule where no square a chess knight's move from another can be the same number.
Add rule the middle 3x3 square is also a "magic square" where each row, column and the 2 diagonals must add up to the same amount.

A knight's move = 2 + 1 or 1 + 2
Like the L piece in tetris.
Move is (R* + 2F + R + 1F  ==  R* + 1F + R + 2F) where R*=pick initial NSEW direction to move, 2F/1F=move forward by 2 or 1, R=rotate by 90 degrees in either direction)

DON'T look at picture unless you want a spoiler. YES it took me 20 minutes to get that far. Nobody told me about the additional rules for a while!