Oct 16 (Reuters) - The Czech right-wing Civic Democrats have increased their lead over the leftist Social Democrats as the country struggles through a parliamentary crisis that resulted from an inconclusive election, a poll showed on Monday. The Civic Democrat government lost a confidence vote earlier this month but remains in office as a caretaker administration while political parties seek to end the stalemate after leftist and centre-right parties each won 100 seats in a June general election. The Civic Democrats want a technocratic government and an early election next year, while the Social Democrats want a grand coalition of the two biggest parties, which would rule for two years before a fresh vote. The poll by the Factum Invenio agency was conducted between October 6 and 12 among 969 Czechs. It showed a centre right coalition including the Civic Democrats, the Greens and the Christian Democrats would have a comfortable majority of 110 seats in the 200-seat lower house. The three parties together won exactly 100 seats in the June election, exactly the same as the leftist Social Democrats and the Communists. DATE INSTITUTE ODS CSSD KSCM KDU-CSL Greens Oct 16 FI 35.9 27.2 13.9 6.9 8.4 Oct 15 STEM 32.0 22.7 11.7 6.3 10.5 Sept 22 CVVM 37.0 29.5 13.0 8.0 10.0 Sept 21 STEM 32.8 26.6 10.0 4.2 10.3 Sept 18 FI 36.3 32.0 13.7 6.5 7.3 Aug 7 FI 41 30.8 12.3 6.3 6.9 ---------------------------------------------------------------- June 2-3 election 35.4 32.3 12.8 7.2 6.3 NOTE. The parties are: - Civic Democratic Party (ODS) - right wing, liberal-conservative - The Czech Social Democratic Party (CSSD) - leftist - Christian Democratic Union-Czechoslovak People's Party (KDU-CSL) - centrist - The Communist Party of Bohemia and Moravia (KSCM) - far left - The Greens - environmentalists, centrist. Pollsters: The FI and CVVM results are based on a model predicting gains at the poll box, excluding those not willing to vote and undecided. STEM results are direct voter preferences, and include replies from all respondents including those not willing to vote. Parties should thus win a larger than indicated share of the vote at the election. (Reporting by Jan Lopatka in Prague) ((Editing by ; prague.newsroom@reuters.com; Reuters Messaging: jan.lopatka.reuters.com@reuters.net; +420-224 190 474)) Keywords: CZECH POLITICS POLL