[{"data":1,"prerenderedAt":120},["ShallowReactive",2],{"bot-ljung":3},{"id":4,"aboutLong":5,"age":6,"botId":7,"country":8,"countryCode":9,"dataHash":10,"dateModified":11,"elo":12,"extension":13,"faq":14,"favoriteQuote":24,"gender":25,"hello":26,"introduction":27,"isTrophy":28,"liveDate":29,"luckyCharm":30,"meta":31,"name":32,"occupation":33,"openingAxes":34,"openingsAnalysis":36,"playstyle":37,"playstyleSummary":41,"ratingHistory":42,"shortName":83,"similar":84,"stem":117,"trophyQuirk":36,"trophyUnlock":36,"whoShouldPlay":118,"__hash__":119},"bots/bots/ljung.json","Mattias Ljung is a 32-year-old bot from Sweden who works the night shift as an LED lighting tester for Stockholm's tunnelbana, calibrating fixtures on the painted bedrock platforms of stations like Solna Centrum and T-Centralen. He learned the game from a colleague who studied lines while waiting for the last train to clear the tunnel, though Mattias himself has never sat down with a book or a repertoire. At an estimated 182 ELO, his play sits barely above random: he knows how each piece moves, but rarely follows a plan for more than a move or two, and pieces tend to drop without much warning. He treats a chessboard the way he treats a dim corner of a platform, walking it slowly with a lux meter and noting which fixtures have gone dark. Opponents should expect short, understated commentary, frequent blunders, and very little resistance once the position gets sharp.","32","ljung","Sweden","se","508cbeee893208c1d3ef8e2590ad0a24177cc78cd0c9180f9d018b9a8efab518","2026-07-06",182,"json",[15,18,21],{"question":16,"answer":17},"What rating is Mattias?","Mattias is rated 182 ELO, which sits barely above random play. He knows how the pieces move but does not follow longer plans and loses material in almost every game. He is one of the weakest opponents on Chessiverse.",{"question":19,"answer":20},"What opening does Mattias play?","Mattias has no fixed repertoire on file. He has never studied theory and tends to make natural-looking moves in the opening rather than steer toward any particular system. Expect a different first few moves almost every game.",{"question":22,"answer":23},"Is Mattias a good first opponent for someone learning chess?","Yes. At 182 ELO he is well suited to players who have just learned the rules and want to practice spotting hanging pieces and delivering checkmate without heavy resistance. His habit of trading down also gives beginners clean endgames to work through.","A station is only as alive as its dimmest corner.","male","Tja, Mattias here. Night shift just ended, lux meter is in the locker, so I have time for a quiet game. Fair warning, ja, I mostly play to keep the hands busy, so do not expect clean wiring from my side. Let us see which fixtures stay lit.","Mattias works the night shift in Stockholm's tunnelbana, walking the painted bedrock platforms of stations like Solna Centrum and T-Centralen with a handheld LED test lamp and a lux meter clipped to his hi-vis vest. He calibrates every fixture so the cave-art murals stay bright at 5 a.m. and dim warmly at midnight. He learned chess from a colleague who used to study lines while waiting for the last train to clear the tunnel.",false,"2026-05-08T00:00:00.000Z","A small spare LED bulb he keeps in his vest pocket — claims it has never burnt out.",{},"Mattias Ljung","LED lighting tester for Stockholm tunnelbana cave-art stations",{"solid_sharp":35,"unprepared_theoretical":35},0,null,{"defensive_aggressive":38,"simplifying_complicating":39,"category":40},0.9,-0.89,4,"Mattias plays aggressively for someone of his level, pushing forward without much thought for safety, and he trades pieces off at almost every opportunity to keep the board uncluttered. He has no preference between solid and sharp structures and no mainline theory behind his moves. The result is a swingy, simplification-driven style where attacks appear suddenly, fizzle quickly, and material is shed on both sides.",[43,45,47,49,51,53,55,57,60,62,64,66,68,70,72,74,76,79,81],{"rating":12,"msSinceEpoch":44},1778334822458,{"rating":12,"msSinceEpoch":46},1778351651237,{"rating":12,"msSinceEpoch":48},1778380417163,{"rating":12,"msSinceEpoch":50},1778497851202,{"rating":12,"msSinceEpoch":52},1778525852985,{"rating":12,"msSinceEpoch":54},1778539547167,{"rating":12,"msSinceEpoch":56},1778539618856,{"rating":58,"msSinceEpoch":59},181,1778685839695,{"rating":58,"msSinceEpoch":61},1778714527697,{"rating":58,"msSinceEpoch":63},1778771208590,{"rating":58,"msSinceEpoch":65},1778810549051,{"rating":58,"msSinceEpoch":67},1778831906707,{"rating":58,"msSinceEpoch":69},1778864705398,{"rating":58,"msSinceEpoch":71},1778877197446,{"rating":58,"msSinceEpoch":73},1778937329905,{"rating":58,"msSinceEpoch":75},1778952185608,{"rating":77,"msSinceEpoch":78},180,1779084170378,{"rating":77,"msSinceEpoch":80},1779099009830,{"rating":77,"msSinceEpoch":82},1779351664781,"Mattias",{"sameStyle":85,"different":104},[86,92,98],{"botId":87,"name":88,"elo":89,"country":90,"countryCode":91,"category":40},"saoir","Saoirse Ní Fhlaithearta",196,"Ireland","ie",{"botId":93,"name":94,"elo":95,"country":96,"countryCode":97,"category":40},"ranvg","Ranveig Solbakk",167,"Norway","no",{"botId":99,"name":100,"elo":101,"country":102,"countryCode":103,"category":40},"bjarn","Bjarni Sigurðsson",209,"Iceland","is",[105,112],{"botId":106,"name":107,"elo":108,"country":109,"countryCode":110,"category":111},"mattu","Áile Mattus",184,"Finland","fi",5,{"botId":113,"name":114,"elo":115,"country":8,"countryCode":9,"category":116},"ragna","Ragnar Hägg",179,3,"bots/ljung","Mattias suits absolute beginners in the 100 to 400 range, including players who have just learned the rules and want a calm, low-pressure opponent. His tendency to push forward and immediately trade rewards anyone practicing basic tactics, capture sequences, and converting a material advantage into checkmate. Players above roughly 600 will find the games one-sided and may prefer a stronger calibration partner.","5QdPElCFjrilS3Iuwy3JPHgCK5NmPVNR84o9v1-fpo4",1784583542177]