Alternative Solution
If you choose not to play EmberQuest to solve this puzzle, you may find the coordinates with this:
qbyqgowcesgchxhywbwzjbbonacmqsacgnzowyxznxnanlg
Game Statistics
After you have found all 31 chests in the game, EmberQuest will show you your game statistics. I may be interesting for you to upload a screenshot of them here to compare with other adventurers.