eleventh season (spring of 2008) 27 teams participated. In the twelfth season (autumn of 2008) 28 teams participated. In the thirteenth season (spring of 2009) 38 teams participate. In addition to the official championships, unofficial matches and mini-tournaments have been held. These included demonstration games and special games (that have been organised as a part of some bigger scientific, educational or entertainment events). The rules and questions might differ slightly during unofficial matches (for example, in matches that are organised as a part of some event the questions might all be set in accordance to the topic of the event). Each team may consist of five to eight players (no more than five players could play for the team in a match at any given time however). Some teams are participating for many years (there are players who have participated in every season since 1997). Each season at least several new teams registers for participation. Many teams represent some particular faculty or institute, while other teams are mixed. International versions References External links Official website of Protmušis—includes news, articles about the matches, current standings, official rules, history of the teams, questions that were asked in past matches, polls (among other things) Presentational film of Protmušis (filmed during the semifinals and finals of the 8th season) The information, statistics and the roster of Protmušis teams until 12th season Games of mental skill Student quiz competitions Lithuanian games Recurring events established in 1997 1997 establishments in Lithuania Guessing games