Czech President Vaclav Klaus has appointed a new government in an attempt to end a seven-month stalemate following elections last June.
Mirek Topolanek may depend on the support of opposition MPs
The government will be led by Prime Minister Mirek Topolanek but will have just 100 of parliament's 200 seats.
It will be subject to a vote of confidence within 30 days.
It is the second government formed by Mr Topolanek since the inconclusive elections. The first resigned after losing a no-confidence vote in October.
The new government will consist of Mr Topolanek's centre-right Civic Democrats, alongside the centrist Christian Democrats and the Green Party.
But with exactly half of the seats in parliament, the government may depend on two MPs who left the opposition Social Democrat Party to become independents, to achieve a majority.
President Klaus has been reluctant to approve a government without a majority, and said the new administration would be keenly watched in the coming days and weeks.
"After nearly a year of no governance, our country surely deserves and needs a fully fledged government. Today's appointment can bring us closer toward that aim," he said during the swearing-in ceremony in Prague.
If this second government fails the prime minister may be forced to consider a "grand coalition" with the Social Democrats, though he has indicated his reluctance to do that.
If a third attempt to form a government fails, the president can decide to call new elections.