[{"data":1,"prerenderedAt":270},["ShallowReactive",2],{"bot-legend_efim_bogoljubov":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":6,"isTrophy":27,"liveDate":28,"luckyCharm":6,"meta":29,"name":30,"occupation":31,"openingAxes":32,"openingsAnalysis":35,"playstyle":228,"playstyleSummary":232,"ratingHistory":6,"shortName":233,"similar":234,"stem":267,"trophyQuirk":6,"trophyUnlock":6,"whoShouldPlay":268,"__hash__":269},"bots/bots/legend_efim_bogoljubov.json","Bogoljubov is a Premium legend bot on Chessiverse, inspired by the historical German chess player of the same name, carrying an estimated rating of 3101 on this platform. That figure places the bot at a super-grandmaster, engine-tier strength, capable of outplaying nearly all human masters with near-flawless technique. As White, Bogoljubov leans on the [Indian Game mainlines](/resources/openings/indian-game-mainlines), using 282 recorded games to steer toward flexible, central battles against 1. d4. The Ruy Lopez and Queen's Gambit also appear frequently in its repertoire, while the Morphy Defense serves as a reliable answer when playing Black. This curated playing style reflects Chessiverse's own calibration, not the historical player's actual tournament record or FIDE rating. Players sitting down against Bogoljubov should expect sharp, purposeful chess with few wasted moves and little room for error.",null,"legend_efim_bogoljubov","Germany","de","32674d550619ad01e51353154522fd83745ab03da32c709be587c76feae4dc76","2026-10-05",3101,"json",[15,18,21],{"question":16,"answer":17},"What rating is Bogoljubov?","Bogoljubov carries an estimated Chessiverse rating of 3101, placing it at super-grandmaster, engine-tier strength. This figure reflects the bot's curated play on Chessiverse and is separate from the historical player's actual FIDE rating.",{"question":19,"answer":20},"What opening does Bogoljubov play?","As White, Bogoljubov most often reaches for the [Indian Game mainlines](/resources/openings/indian-game-mainlines), with the Ruy Lopez and Queen's Gambit also in regular rotation. As Black, it frequently answers with the Morphy Defense.",{"question":22,"answer":23},"Can master-level players beat Bogoljubov?","It is possible but difficult, since a 3101 rating sits well above master and even most grandmaster level play. Masters will need near-perfect accuracy and a strong grasp of tactics and endgames to find a win against this bot.","","male","Welcome, friend. Shall we sit down at the board together? I promise a fighting game, full of ideas, wherever the pieces may lead us.",false,"2026-10-04T14:36:13.611Z",{},"Efim Bogoljubov","Chess Legend",{"solid_sharp":33,"unprepared_theoretical":34},0.05,-0.15000000000000002,{"stats":36,"whiteFingerprint":52,"blackFingerprint":158},{"total":37,"white":42,"black":47},{"games":38,"uniqueOpenings":39,"sharpness":33,"repertoireNarrowness":40,"theoryAdherence":41},2267,888,-1,0.7,{"games":43,"uniqueOpenings":44,"sharpness":45,"repertoireNarrowness":40,"theoryAdherence":46},1152,540,0.17,0.81,{"games":48,"uniqueOpenings":49,"sharpness":50,"repertoireNarrowness":40,"theoryAdherence":51},1115,545,-0.07,0.58,{"firstMove":53},[54,94],{"name":55,"percent":56,"count":57,"lines":58,"responses":60},"d4",52.7,798,[59],[55],[61,82],{"name":62,"percent":63,"count":64,"lines":65,"variationBreakdown":67},"d5",50.3,285,[66],[55,62],[68,75],{"name":69,"percent":70,"count":71,"lines":72},"Queen's Gambit",58.3,168,[73],[55,62,74],"c4",{"name":76,"percent":77,"count":78,"lines":79},"Queen's Pawn Game",40.6,117,[80],[55,62,81],"Nf3",{"name":83,"percent":84,"count":85,"lines":86,"variationBreakdown":88},"Nf6",49.7,282,[87],[55,83],[89],{"name":90,"percent":91,"count":85,"lines":92},"Indian Game mainlines",67.1,[93],[55,83,74],{"name":95,"percent":96,"count":97,"lines":98,"responses":100},"e4",32.3,489,[99],[95],[101,115,132,145],{"name":102,"percent":103,"count":104,"lines":105,"variationBreakdown":107},"e5",52.8,172,[106],[95,102],[108],{"name":109,"percent":110,"count":104,"lines":111},"Ruy Lopez",72.9,[112],[95,102,81,113,114],"Nc6","Bb5",{"name":116,"percent":117,"count":118,"lines":119,"variationBreakdown":122},"Sicilian",13.2,43,[120],[95,121],"c5",[123],{"name":124,"percent":125,"count":118,"lines":126},"Open Sicilian",70.5,[127,128,130],[95,121,81,113,55],[95,121,81,129,55],"d6",[95,121,81,131,55],"e6",{"name":133,"percent":134,"count":135,"lines":136,"variationBreakdown":138},"French",32.2,105,[137],[95,131],[139],{"name":140,"percent":141,"count":135,"lines":142},"Classical French",92.1,[143],[95,131,55,62,144],"Nc3",{"name":146,"percent":147,"count":148,"lines":149,"variationBreakdown":152},"Caro-Kann",1.8,6,[150],[95,151],"c6",[153],{"name":154,"percent":155,"count":148,"lines":156},"Classical Caro-Kann",100,[157],[95,151,55,62,144],{"vsFirstMove":159},[160,194],{"name":95,"lines":161,"responses":163},[162],[95],[164,178],{"name":165,"percent":166,"count":167,"lines":168,"variationBreakdown":170},"1...e5 (Open Games)",51.7,269,[169],[95,102],[171],{"name":172,"percent":173,"count":174,"lines":175},"Morphy Defense",35.5,132,[176],[95,102,81,113,114,177],"a6",{"name":116,"percent":179,"count":180,"lines":181,"variationBreakdown":183},26.7,139,[182],[95,121],[184],{"name":185,"percent":186,"count":187,"lines":188,"mainlines":193},"Other Sicilian ...e6",62.5,59,[189],[95,121,81,131,55,190,191,192],"cxd4","Nxd4","...",[177,113],{"name":55,"lines":195,"responses":197},[196],[55],[198],{"name":199,"percent":200,"count":201,"lines":202,"variationBreakdown":204},"Indian systems",63.6,384,[203],[55,83],[205,212,219],{"name":206,"percent":207,"count":208,"lines":209},"Nimzo-Indian",18.2,81,[210],[55,83,74,131,144,211],"Bb4",{"name":213,"percent":214,"count":215,"lines":216},"QGD",13.5,60,[217,218],[55,83,74,131,144,62],[55,83,74,131,81,62],{"name":220,"percent":221,"count":222,"lines":223,"mainlines":225},"Other Indian lines",12.4,51,[224],[55,83,74,192],[226,131,62,227,121,102],"g6","b6",{"defensive_aggressive":229,"simplifying_complicating":230,"category":231},0.65,0.6,5,"Bogoljubov plays an aggressive, attacking style, pushing for initiative rather than sitting back. It tends to keep tension on the board rather than trading down into quiet endings, and shows a mild sharp edge over solid, quiet structures. Its opening choices lean slightly offbeat rather than deep mainline theory, favoring practical setups such as the [Indian Game mainlines](/resources/openings/indian-game-mainlines) and the Ruy Lopez to steer play on its own terms.","Bogoljubov",{"sameStyle":235,"different":254},[236,242,248],{"botId":237,"name":238,"elo":239,"country":240,"countryCode":241,"category":231},"legend_nodirbek_abdusattorov","Nodirbek Abdusattorov",3100,"Uzbekistan","uz",{"botId":243,"name":244,"elo":245,"country":246,"countryCode":247,"category":231},"CevRa","Lisa Knightley",3103,"Canada","ca",{"botId":249,"name":250,"elo":251,"country":252,"countryCode":253,"category":231},"legend_rameshbabu_praggnanandhaa","Rameshbabu Praggnanandhaa",3099,"India","in",[255,260],{"botId":256,"name":257,"elo":258,"country":8,"countryCode":9,"category":259},"legend_artur_yusupov","Artur Yusupov",3096,1,{"botId":261,"name":262,"elo":263,"country":264,"countryCode":265,"category":266},"slgUG","Ray Deant",3106,"Romania","ro",4,"bots/legend_efim_bogoljubov","Strong club and expert-level players, roughly 2000 to 2400, will find the most value here, since anything below that range risks a one-sided game against near-perfect technique. Those who want to test their resilience against relentless, tension-filled attacking play will benefit most, particularly players who tend to simplify too early and need practice holding complex, dynamic positions under pressure.","edEgydw3xIcxzuSsGJJJQVpeByZQKnkpm5QSwMlZUP8",1791222021777]