The mixed messages caused some confusion, but most investors were relieved by signs both countries were moving towards peace.
The euro last traded on the EBS platform up 0.07 percent above $1.31, recovering from a one-year low struck on Tuesday, but it dipped 0.16 percent near 138 yen after touching an eight-week high earlier against the Japanese currency.
The dollar weakened against the Russian rouble on the ceasefire talk. The greenback fell 1.6 percent to around 36.84 roubles after hitting a record high around 37.52 roubles on Monday.
The conflict in Ukraine and related sanctions imposed by western countries on Russia have taken its toll on the euro zone which analysts reckon will need more stimulus from the European Central Bank.
While the ECB is unlikely to take action on Thursday, the threat of falling prices, along with uncertainty to the recovery from the Russia/Ukraine conflict, is likely to see President Mario Draghi flag the prospects of more easing in coming months.
The euro's recovery saw the dollar index edge down 0.14 percent around 82.88, which was not far below a 14-month high near 83.06 set earlier. The dollar has made an impressive start in September on strong domestic economic data .
The U.S. Federal Reserve's Beige Book on regional economic activities released on Wednesday showed ongoing expansion across the United States in recent weeks, but the pace of growth did not accelerate, supporting traders' expectations the Fed would leave interest rates near zero at least into the middle of 2015.
Meanwhile, the yen was supported by expectations that the Bank of Japan, which began a two-day policy meeting, may sit tight and reiterate its view that the economy is recovering moderately.
The yen would also remain under pressure on bets that Japan's behemoth Government Pension Investment Fund (GPIF) would decide in the coming weeks to put more money into riskier assets including stocks and foreign bonds, which could increase demand for foreign currencies.
Against the yen, the dollar declined 0.23 percent at 104.83 yen, below an eight-month high of 105.31 yen on the EBS system. A break above 105.45 yen would take the greenback to a high not seen since October 2008.
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