Uzbekistan face rivals Jordan on Friday and again four days later, with the winners of the tie then taking on the South American team who finishes fifth in qualifying in an intercontinental play-off in November.
The winning side from that encounter will book their place at next year's World Cup, and if Uzbekistan or Jordan eventually prevail, it will mean a fifth spot for Asia in Brazil.
Ahmedov, who plays for Russian Premier League side Anzhi Makhachkala, knows only four games stand between his side and making the dream of competing in a World Cup a reality.
"We know that our people want us to qualify and whatever it takes, and with God's help, we will make that dream come true," he told FIFA.com.
"We have a golden opportunity against Jordan.
"If we win, we'll take on a team from South America, so we have four decisive matches in which to get to the World Cup."
This is the second time Uzbekistan have reached this stage of qualification, with their previous chance ending in heartbreak as they lost on away goals to Bahrain in October 2005, meaning they failed to make it to the World Cup the following year in Germany.
Jordan assistant coach Tariq al Saed feels his team's preparations for the match have gone well and is hopeful they can put up a strong challenge.
He told the Jordanian FA's website: "We have many good players who are determined to give everything to represent the country well."