No, if anything I was disappointed to read within 20% was correct! (I played it before reading your post!)

▲ danielfetz a day ago | parent [-]

Initially the win criteria was within ±10% of the correct answer, but 15 minutes ago I changed it to ±20%. My rationale here is that the goal of the game is to get within the ballpark of the correct answer. And a guess of 80 billion when the correct answer is 100 billion seems quite good and indeed should probably win the game.

	▲	munch117 a day ago \| parent [-]
		Thank you for making this. I have an idea for a gameplay that I think I would enjoy more: `- If the first guess is within a factor of sqrt(10), then you win. - If not, you are given two choices for the second guess: Up or down. - Up and down are 10x higher and lower guesses (making them adjacent ranges to the first guess). - If the second guess is wrong, you lose. No more guesses.` The point is that the second guess makes you rethink the original question once more, to figure out what it was that you missed. Which is more fun that doing bisection. I wrote 10x and sqrt(10) to make a game literally about orders of magnitude, but you could of course you smaller numbers, like 4x and sqrt(4), to make it harder.