I'm glad you enjoyed it! The final round is a bit unfair in its current iteration, since the letters you get are entirely luck-based, so it's good that you were able to beat it. The actual show is also a bit twisted in how they pick the final puzzle, since they'll often use rarer letters the contestants never guess, but I'd like to add a bit more skill to the final round (perhaps making the letter-picking a timing game) in the future.