[{"data":1,"prerenderedAt":91},["ShallowReactive",2],{"bot-jastr":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":39,"ratingHistory":40,"shortName":52,"similar":53,"stem":88,"trophyQuirk":36,"trophyUnlock":36,"whoShouldPlay":89,"__hash__":90},"bots/bots/jastr.json","Tadeusz Jastrzębski is a 75-year-old amber authentication scientist from Gdańsk, Poland, who certifies Baltic resin from a narrow lab on Mariacka Street overlooking the Motława river. He learned the game from his father during long winter sessions sorting raw amber and has kept it as a lifelong companion to the bench rather than a competitive pursuit. At an estimated 1927 Elo, Tadeusz plays at the level of a strong club player with a refined positional eye, dependable tactical vision, and a working command of mainline opening theory absorbed over five decades of casual but attentive study. He wears a small honey-cognac amber pendant containing a tiny ant inclusion, worn since his first authenticated piece in 1972, and treats each game like another specimen waiting to be read under good light. Opponents should expect calm, careful, deeply observant play with very few rushed decisions.","75","jastr","Poland","pl","8afca765299e92d57d4f687b8b3019dcdf08a3c5b4f7542ec82231dbd11889e3","2026-07-06",1927,"json",[15,18,21],{"question":16,"answer":17},"What rating is Tadeusz?","Tadeusz is rated approximately 1927 Elo, placing him in the strong club player bracket. At this level he combines refined positional sense with reliable tactical vision and a solid grounding in mainline opening theory.",{"question":19,"answer":20},"What opening does Tadeusz play?","Tadeusz has no fixed repertoire on file at this time. His playstyle axes sit at the center of the theoretical and stylistic dimensions, indicating he draws from a broad and balanced selection of mainline openings rather than specializing in a single system.",{"question":22,"answer":23},"How do strong club players prepare to face Tadeusz?","Against a 1927-rated opponent, club players above 1800 should expect accurate opening play and few free tactical gifts, so preparation centers on clean structure choices and patient middlegame plans rather than tricks. Calculate every forcing line carefully, because Tadeusz will find the tactical refutations of careless moves. In quieter positions, look for small positional concessions you can convert into a long technical endgame, where the rating gap narrows for the well-prepared.","Every stone tells the truth eventually — you only need patience and good light.","male","Dzień dobry. Sit, please, and we will hold this position to the light together. I keep a steady bench here on Mariacka Street, the loupe is warm, and every move you set down I will read like a fresh specimen. Proszę, your opening.","Tadeusz has spent fifty years at the long benches of Gdańsk's amber workshops, certifying the genuine Baltic resin and quietly turning away the imitations. He works from a narrow lab on Mariacka Street where the morning light off the Motława river falls just right across his loupe. He learned chess from his father between long winter sessions sorting raw amber, and still treats every game like another specimen waiting to be read.",false,"2026-05-08T00:00:00.000Z","A small honey-cognac Baltic amber pendant with a tiny ant inclusion, worn on a thin silver chain since his first authenticated piece in 1972.",{},"Tadeusz Jastrzębski","Gdańsk amber authentication scientist",{"solid_sharp":35,"unprepared_theoretical":35},0,null,{"defensive_aggressive":35,"simplifying_complicating":35,"category":38},3,"Tadeusz plays with a balanced hand at the board. His axes sit close to neutral across the dimensions of defense and aggression, simplification and tension, and solid versus sharp lines, producing a flexible style that adapts to whatever the position asks of it. He neither rushes trades nor avoids them, holds mainline theory at a club-strong level, and prefers to read the board before committing, the way a loupe reads an inclusion.",[41,44,47,49],{"rating":42,"msSinceEpoch":43},1920,1778912310212,{"rating":45,"msSinceEpoch":46},1913,1779176861917,{"rating":42,"msSinceEpoch":48},1779216328073,{"rating":50,"msSinceEpoch":51},1911,1779216609754,"Tadeusz",{"sameStyle":54,"different":73},[55,61,67],{"botId":56,"name":57,"elo":58,"country":59,"countryCode":60,"category":38},"nakam","Emiko Nakamura",1925,"Japan","jp",{"botId":62,"name":63,"elo":64,"country":65,"countryCode":66,"category":38},"wonbo","Kang Won-bo",1933,"South Korea","kr",{"botId":68,"name":69,"elo":70,"country":71,"countryCode":72,"category":38},"pinas","Humphrey Pinas",1944,"Netherlands","nl",[74,81],{"botId":75,"name":76,"elo":77,"country":78,"countryCode":79,"category":80},"kJyWR","Reed Pages",1928,"England","gb-eng",1,{"botId":82,"name":83,"elo":84,"country":85,"countryCode":86,"category":87},"soobh","Anand Soobhug",1917,"Mauritius","mu",2,"bots/jastr","Players rated roughly 1700 to 2100 will find Tadeusz a genuine test, with intermediate club players gaining the most from the encounter. Because his style sits at the center of every axis, opponents cannot win by simply picking a stylistic counter; they must outplay him on pure understanding. Tactically sharp improvers learn patience against him, while quiet positional players are pushed to find concrete ideas rather than drift.","rQ9DLbsvHajuoi1_WwbqMPfRw4YBNSDz31c5g71bFJ8",1784583540388]