- Chess World Cup
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- Checkmate patterns
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| Country | Czech Republic Iceland |
|---|---|
| Born | 16 January 1976 Czechoslovakia |
| Title | Woman Grandmaster |
| Peak rating | 2317 (March 2010) |
Lenka Ptáčníková (born 16 January 1976) is a Czech-born Icelandic chess player who holds the title of Woman Grandmaster. She won twice the Czech women's chess championship, in 1994 and 1996, and six times, to date, the Icelandic women's chess championship (2006, 2009, 2010, 2012, 2013, 2014).
She transferred to the Icelandic Chess Federation in 2004.
In 2005 Ptáčníková won the women's Nordic Chess Championship in Vammala, Finland.
She played for Czech Republic at the Women's Chess Olympiads of 1994, 1996, 1998, 2000, 2002 and at the Mitropa Cup in 1997. Ptáčníková has represented Iceland at the Women's Chess Olympiad in 2004, 2006, 2008, 2010, 2012, 2014 and the Women's European Team Chess Championship in 2005 and 2013.