lol gotta laugh
*All entries within 2 USD of the closing price on CoinGecko BTC/USD price chart on 28 February 2016 (i.e. 29 Feb 2016 00:00 GMT) will be considered as closest guesses. For example, on 1 Jan 2016, bitcoin price as listed on CoinGecko is USD434.427. Thus all answers for USD434 and USD435 will be considered closest guesses
so 436.426 is not "closest guess".. even if its within the 2 USD
so 432.428 is not "closest guess".. even if its within the 2 USD
i think the coingecko needs a better example, rather than saying 0.573 above and 0.427 below is acceptable leeway