Icannos/chess_studies huggingface dataset:
[Event "Catalan: Open Catalan, O-O-O"]
[Site "https://lichess.org/study/OAlZZKi1/Zk902syR"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E04"]
[Opening "Catalan Opening: Open Defense"]
[UTCDate "2021.06.18"]
[UTCTime "21:37:08"]
[Variant "Standard"]

1. d4 { This is a more modern line and is a strong weapon against the catalan. I personally like this line because although black doesn't equalize according to the engine, black has strong attacking chances especcially in faster time controls. } 1... d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Bd7 6. Ne5 ( 6. O-O { To avoid this line } 6... Bc6 7. Qc2 b5 8. Nc3 b4 9. Nb1 Nbd7 10. Qxc4 ) 6... Bc6 7. Nxc6 Nxc6 8. O-O Qd7 9. e3 O-O-O { The engine says that it is +1 but in reality black has quite a strong attack after h5 h4. Black does not have a light squared bishop so it isn't too dangerous to go into this line. In this position, black has a very high winrate due to the attack on the kingside. } 10. Nd2 ( 10. Qa4 $4 Nd5 11. Qxc4 { White wastes too much time picking up the pawn, now black's attack is now deadly. White's attack is too slow now and practically this is very hard to defend as white doesn't have many pieces on the kingside to defend with. Stockfish still thinks white is better but in both the masters and lichess database black scores far better than white. [%cal Rg7g5,Rh6h5,Rh7h5,Rh5h4] } 11... h5 ) 10... h5 11. Nxc4 h4 12. Bd2 { at this point both sides try to launch an attack. At a very high depth (30) stockfish thinks that white is much better but practically in fast time controls black my be able to successfully attack. [%cal Gb2b4,Gb4b5,Ga2a4,Ga4a5,Rh4g3,Rh8h1,Rd8h8,Rg7g4,Rf7f4] } *
[Event "Catalan: Open Catalan, immediate b5"]
[Site "https://lichess.org/study/OAlZZKi1/dO13WuVM"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E04"]
[Opening "Catalan Opening: Open Defense"]
[UTCDate "2021.08.03"]
[UTCTime "16:21:40"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 b5 6. a4 c6 7. Ne5 Nd5 8. O-O Bb7 9. e4 Nf6 10. Nc3 a6 11. d5 cxd5 12. exd5 Nxd5 13. Qh5 g6 14. Nxg6 fxg6 15. Qe5 Qf6 ( 15... Rg8 16. Qxe6+ Qe7 17. Qxg8 ) 16. Qxf6 Nxf6 17. Bxb7 Ra7 18. Bg2 *
[Event "Catalan: __________________________________"]
[Site "https://lichess.org/study/OAlZZKi1/XhC7e3Yo"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "?"]
[Opening "?"]
[UTCDate "2021.04.07"]
[UTCTime "09:55:18"]
[Variant "Standard"]

*
[Event "Catalan: Closed Catalan (main ideas)"]
[Site "https://lichess.org/study/OAlZZKi1/3tWFzGZZ"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E09"]
[Opening "Catalan Opening: Closed Variation, Traditional Variation"]
[UTCDate "2021.04.24"]
[UTCTime "08:26:25"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 { It is clear they are not going to take you have a few very simple plans. Here, the plan is to play e4 to open up the diagonal for the bishop [%cal Gd1c2,Gb1d2,Ge2e4] } 7. Nbd2 Nbd7 8. Qc2 b6 { black tries to fianchetto and develop their bishop, potentially looking for c5 } ( 8... Re8 9. e4 dxe4 ( 9... dxc4 ) 10. Nxe4 Nxe4 11. Qxe4 ) 9. e4 { Taking on e4 would be a positional mistake as it opens the diagonal for the g3 bishop } 9... dxc4 { white has the full center and will have an easier game. dxc4 is more common at lower elos } ( 9... dxe4 10. Nxe4 Nxe4 11. Qxe4 { the bishop now has a deadly long diagonal [%cal Gg2a8] } ) ( 9... c5 { If this happens you might be confused, just take with either the C or E pawn, never the D pawn } ) ( 9... Bb7 10. e5 Ne8 { forcing the knight to a passive square while locking down the center. } 11. cxd5 cxd5 ) 10. Nxc4 Bb7 { future ideas include finishing development and playing e5 [%cal Gc1g5,Gf1d1,Ge4e5,Gc1f4] } 11. Rd1 { long term plans include a queenside expansion/minority attack to soften the queenside. b3 and Bb2 might work in some positions [%cal Gb2b3,Gc1b2] } *
[Event "Catalan: Closed Catalan preferred structure"]
[Site "https://lichess.org/study/OAlZZKi1/bjacT9jU"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "?"]
[FEN "8/8/8/8/2PPP3/1P3NP1/PBQN1PBP/R4RK1 b - - 0 1"]
[Opening "?"]
[SetUp "1"]
[UTCDate "2021.04.24"]
[UTCTime "08:41:30"]
[Variant "Standard"]

{ At lower elos, the closed catalan is very common. In most closed catalan games, this structure is desired and white will have a slight advantage. } *
[Event "Catalan: Closed Catalan, mainline"]
[Site "https://lichess.org/study/OAlZZKi1/3pYJZRqK"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.04.07"]
[UTCTime "09:54:54"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... e6 { [%eval 0.31] } 3. Nf3 { [%eval 0.0] } 3... Nf6 { [%eval 0.0] } 4. g3 { [%eval 0.13] } 4... Be7 { [%eval 0.33] } 5. Bg2 { [%eval 0.13] } 5... O-O { [%eval 0.28] } 6. O-O { [%eval 0.13] } 6... c6 { [%eval 0.4] } 7. Qc2 { [%eval 0.21] } 7... b6 { [%eval 0.2] } ( 7... Nbd7 8. Nbd2 Re8 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nf6 12. Qe2 c5 13. Rd1 cxd4 14. Nxd4 Qb6 15. Be3 Bc5 ) 8. Nbd2 { [%eval 0.01] } ( 8. Bf4 { this move although natural is needed for Nd2 in order to push e4, I have no idea why engine likes it } ) 8... Bb7 { [%eval 0.24] } 9. e4 { [%eval 0.26] } 9... Na6 { [%eval 0.36] prevent the knight hop [%cal Ra6b4,Ga2a3] } 10. a3 { [%eval 0.14] } 10... c5 { [%eval 0.11] } 11. exd5 { [%eval 0.25] } 11... exd5 { [%eval 0.35] Many different ways to play this } 12. dxc5 { [%eval 0.36] } 12... Nxc5 { [%eval 0.27] } 13. b4 { [%eval 0.23] } 13... Ne6 { [%eval 0.47] } 14. Bb2 { [%eval 0.37] } 14... Rc8 { [%eval 0.59] } 15. Ne5 { [%eval 0.59] } 15... Qc7 { [%eval 0.27] } 16. Rac1 { [%eval 0.48] } *
[Event "Catalan: Closed Catalan, second main line (in progress)"]
[Site "https://lichess.org/study/OAlZZKi1/FqClgmNP"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.08.03"]
[UTCTime "04:04:57"]
[Variant "Standard"]

1. d4 { The closed catalan is not very common in high level play as it is nearly impossible for black to both equalize and play for an advantage. } 1... d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. b3 ( 7. Nc3 { It is clear black does not want to take on c4 } 7... Nbd7 8. b3 b6 9. Bb2 { [%cal Rc8b7,Rc8a6] } 9... Ba6 10. Nd2 Rc8 11. e4 dxe4 12. Ndxe4 b5 ) ( 7. Nbd2 ) 7... Nbd7 8. Bb2 b6 9. Nbd2 Bb7 10. Qc2 Rc8 11. e4 { as always } 11... c5 12. exd5 exd5 13. dxc5 { avoiding isolated pawn structures, leads to pretty boring position thats quite drawish. } 13... Bxc5 { [%cal Gc4d5,Rc5f2,Gg1f2,Rc8c2] } 14. Rad1 dxc4 ( 14... Qc7 15. Qf5 dxc4 16. Nxc4 { same position, different order } ) 15. Nxc4 Qc7 16. Qf5 *
[Event "Catalan: Closed Catalan, Nbd7"]
[Site "https://lichess.org/study/OAlZZKi1/NMzhmMF5"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.05.01"]
[UTCTime "07:19:08"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Nbd7 5. Bg2 c6 6. O-O Bd6 7. Nbd2 ( 7. Nc3 $6 dxc4 $1 { [%csl Rc3][%cal Gd1c2,Gc2c3] } ( 7... O-O 8. Nd2 Re8 9. e4 dxe4 10. Ndxe4 Nxe4 11. Nxe4 Be7 { [%cal Gf1e1,Gc1f4] } ) ) *
[Event "Catalan: Closed Catalan, b3 Bb2"]
[Site "https://lichess.org/study/OAlZZKi1/VPwvqfdU"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.05.09"]
[UTCTime "21:41:08"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 ( 3... c6 4. g3 dxc4 5. Bg2 b5 6. Ne5 Bb7 { most natural and common move, just protecting the c6 pawn a second time. a4 and b3 look tempting to break up the center but they can wait [%cal Ga2a4,Gb2b3] } 7. O-O Nf6 8. a4 { engine likes b3 for some reason but a4 is more natural (easier to remember) and it scores better. I would recommend a4 first and b3 next. } 8... a6 9. b3 cxb3 { the pawn is going nowhere, you can just protect the d4 pawn while developing } 10. Bb2 Nbd7 { looks like a free pawn } 11. Nxc6 Qb6 ( 11... Qc7 12. Qxb3 Bxc6 13. Rc1 { pin it, you will win it } ) 12. a5 Qc7 13. Nd2 Bxc6 14. Rc1 { again, just pin it and win it } ) 4. g3 c6 5. Bg2 Be7 ( 5... Nbd7 6. O-O ) 6. b3 O-O 7. O-O Nbd7 8. Bb2 b6 9. Nbd2 Bb7 10. Qc2 Rc8 11. e4 dxe4 12. Nxe4 Nxe4 13. Qxe4 Nf6 14. Qe2 *
[Event "Catalan: Closed Catalan, Bb4+ (second mainline)"]
[Site "https://lichess.org/study/OAlZZKi1/QtGWoNmc"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.05.30"]
[UTCTime "01:04:08"]
[Variant "Standard"]

1. d4 { In Bb4+ lines after Bd2 do not ply e3 until you move the dark squared bishop out of the pawn chain. [%cal Gc1d2,Gd2f4,Ge2e3] } 1... d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 ( 6. Qc2 { engine move, transposes to the exact same position } 6... O-O 7. Bg2 c6 8. O-O b6 ) 6... O-O 7. O-O c6 8. Qc2 b6 9. Rd1 { Black has 3 choices } 9... Nbd7 ( 9... Bb7 10. Ne5 Nbd7 11. cxd5 cxd5 12. Nc6 Bxc6 13. Qxc6 Rc8 14. Qb5 ) ( 9... Ba6 10. b3 Nbd7 11. a4 { [%cal Ga4a5,Ga5b6] } 11... c5 12. Na3 Bb7 13. Qb2 Ne4 14. Be1 Bf6 ) 10. Bf4 Bb7 11. Ne5 Nh5 12. Bd2 Nhf6 ( 12... Nxe5 13. dxe5 { maybe f4? [%cal Gc4d5,Gb1c3] } ) *
[Event "Catalan: Closed Catalan, Bb4+ (exchange)"]
[Site "https://lichess.org/study/OAlZZKi1/Knmel2sf"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.03.26"]
[UTCTime "05:32:12"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... e6 { [%eval 0.7] [%cal Gg1f3] } 3. Nf3 { [%eval 0.0] } 3... Nf6 { [%eval 0.0] } 4. g3 { [%eval 0.13] } 4... Bb4+ { [%eval 0.32] } 5. Bd2 { [%eval 0.0] } 5... Bxd2+ { [%eval 0.37] } 6. Nbxd2 { [%eval 0.5] } 6... O-O { [%eval 0.95] } 7. Bg2 { [%eval 0.87] } 7... Nbd7 { [%eval 0.94] } 8. O-O { [%eval 0.89] } 8... c6 { [%eval 1.3] } ( 8... c5 9. cxd5 exd5 10. Qc2 cxd4 ( 10... b6 11. dxc5 bxc5 12. e4 ) ( 10... c4 11. b3 cxb3 12. Qxb3 Re8 ) 11. Nxd4 ) 9. Qc2 { [%eval 1.29] the standard closed catalan structure } 9... b6 { [%eval 1.63] } 10. e4 { [%eval 1.78] as always } 10... Bb7 { [%eval 1.72] } 11. e5 { [%eval 1.65] } 11... Ne8 { [%eval 1.6] } 12. cxd5 { [%eval 1.3] } 12... cxd5 { [%eval 1.46] } 13. Rfc1 { [%eval 1.37] } 13... Rc8 { [%eval 1.46] } 14. Qa4 { [%eval 1.51] } *
[Event "Catalan: Closed Catalan, Bb4+ (a5)"]
[Site "https://lichess.org/study/OAlZZKi1/NglRKgLb"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.04.07"]
[UTCTime "09:33:12"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... e6 { [%eval 0.31] } 3. Nf3 { [%eval 0.0] } 3... Nf6 { [%eval 0.0] } 4. g3 { [%eval 0.13] } 4... Bb4+ { [%eval 0.32] } 5. Bd2 { [%eval 0.0] } 5... a5 { [%eval 0.4] } 6. Bg2 { [%eval 0.16] } 6... dxc4 { [%eval 0.51] } ( 6... O-O 7. Qb3 c5 8. dxc5 Bxc5 9. cxd5 exd5 10. O-O ) 7. Qc2 { [%eval 0.25] } 7... Bxd2+ { [%eval 0.16] } 8. Qxd2 { [%eval 0.15] } 8... c6 { [%eval 0.06] } 9. a4 { [%eval -0.12] } 9... Ne4 { [%eval 0.13] } 10. Qf4 { [%eval 0.25] } 10... Qb6 11. O-O Qxb2 12. Ne5 { threatening mate } 12... O-O ( 12... f6 13. Nxc4 ) 13. Na3 Nc3 14. Qe3 Qb4 ( 14... Nxe2+ 15. Kh1 Nc3 16. Rfc1 Nd5 17. Bxd5 exd5 18. Rcb1 Qb4 19. Rxb4 axb4 20. Naxc4 ( 20. Nc2 b3 21. Nb4 { these past pawns } ) ) *
[Event "Catalan: Closed Catalan, Bb4+, Bd6"]
[Site "https://lichess.org/study/OAlZZKi1/ouJzsuGm"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.06.15"]
[UTCTime "06:17:20"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Bd6 6. Bg2 ( 6. Nc3 { Another idea, the only major difference from the mainline is that the knight is developed to c3 } 6... O-O { Here are the main ideas in this position, always trade the DSB for black's knight because it is misplaced on d2 [%cal Gd2g5,Gg5f6,Ge2e3,Gd1e2,Gf1g2,Ge1g1] } ) 6... c6 7. Qc2 Nbd7 8. O-O O-O 9. Bg5 { unusual move in the catalan but the bishop is misplaced and cannot move to c3 because it block's the queen from the c4 pawn. The knight belongs on d2 [%cal Gb1d2] } 9... h6 { The bishop has no good squares, it will either get trapped, get captured while ruining white's pawn-structure, or block the pawns or the knight [%csl Rf4,Re3,Rh4,Rd2] } 10. Bxf6 Nxf6 { black simply activates a knight while recapturing, this will be played almost every single time. } ( 10... Qxf6 11. Nbd2 ) 11. Nbd2 b6 12. e4 { like always, e4 opens up the bishop. In this case, a fork is threatened so taking on c4 is not an option for black. } 12... Be7 { White has no option that will open up their bishop so closing the position is the only choice. } 13. e5 Nd7 { black has to retreat to d7, if they retreat to e8 their knight has almost zero proespects in the near future. } 14. Rfc1 { lining up the battery, this is sort of a waiting move. Computer calls it equal. } ( 14. cxd5 cxd5 { For some reason white has a losing record in this line, for this reason it should be avoided. White should refrain from taking here. } ) *
[Event "Catalan: Closed Catalan, 6. Qc2"]
[Site "https://lichess.org/study/OAlZZKi1/T3cGnwIU"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.05.17"]
[UTCTime "07:07:42"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. Qc2 $6 { Uncommon move, the engine believes black is slighltly better or equal in the following positions. However, it is the best scoring move and has very little theory around it. I don't know why it scores this well but my best guess is that it is unexpected and leads to an unfamiliar positions for black. In this position white plays like how black would play a grünfeld. } 6... c5 7. O-O ( 7. dxc5 d4 8. b4 a5 9. b5 Bxc5 10. Nbd2 Nbd7 11. Nb3 e5 { This is a line played by Dubov and So } ) 7... cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. b3 a5 ( 10... dxc4 11. Bxc6 Rb8 12. Qxc4 ) 11. Nc3 Ba6 ( 11... h6 ) 12. Rd1 { White can try to undermine black's center. Surprisingly, black has never won a single game in this position (masters) despite stockfish saying that it is near equal [%cal Rd8c7,Rd8b6,Rd8b8,Rd8c8] } *
[Event "Catalan: Closed Catalan, 9. e4, delayed capture"]
[Site "https://lichess.org/study/OAlZZKi1/X88YBUvl"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2022.04.18"]
[UTCTime "04:41:28"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Qc2 b6 ( 7... Nbd7 8. Nbd2 b5 9. c5 { open up the queenside in these positions. a4 or a3 is non-negotiable in the future. try to push for e4 as always. [%csl Ge4][%cal Ga2a4] } 9... a5 10. e4 ) 8. Nbd2 Bb7 9. e4 Nbd7 { in positions where you have three center pawns and black refuses to capture, you can either wait or push forward with e4. } 10. e5 Ne8 11. cxd5 cxd5 12. Re1 Rc8 13. Qa4 Nc7 ( 13... a5 14. Nf1 Ba6 15. Qd1 ) 14. Nf1 ( 14. Qxa7 { trapped queen } ) 14... b5 15. Qd1 b4 16. h4 a5 { future ideas to attack on kingside } *
[Event "Catalan: Closed Catalan, transposition to QID"]
[Site "https://lichess.org/study/OAlZZKi1/RKJq1KQm"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E18"]
[Opening "Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line"]
[UTCDate "2021.06.14"]
[UTCTime "20:50:32"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O b6 7. Nc3 Bb7 8. Ne5 { Black cannot capture on c4 due to the pin [%csl Rb7] } 8... Na6 9. cxd5 ( 9. Bf4 { obscure line, possibly transposes to practically the same position if c5 } 9... c5 10. cxd5 exd5 ) 9... exd5 10. Bf4 c5 11. dxc5 Nxc5 *
[Event "Catalan: Closed Catalan, g6"]
[Site "https://lichess.org/study/OAlZZKi1/BKJ4j96L"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.07.01"]
[UTCTime "19:36:13"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 Nc6 8. Ne5 Ne7 9. Qd3 c6 *
[Event "Catalan: Closed Catalan, Ne4"]
[Site "https://lichess.org/study/OAlZZKi1/0YZQ95ly"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.07.09"]
[UTCTime "17:25:45"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Ne4 { surprisingly common online. } 5. Bg2 Bb4+ 6. Nbd2 { Important move, the normal Bd2 would give black the bishop pair for no compensation. It would still be playable but it is not nessisary. } ( 6. Bd2 Nxd2 7. Nbxd2 ) ( 6. Nfd2 { engine move, the bishop now exerts pressure on the knight and after castles black is forced to capture } ) 6... O-O 7. O-O Nc6 8. e3 ( 8. Nxe4 dxe4 9. Ne5 Nxd4 10. Bxe4 f6 11. Nd3 { also works but i feel like it would be an unusuall middlegame for most catalan players. } ) 8... Nxd2 9. Bxd2 Bxd2 10. Qxd2 dxc4 11. Qc3 *
[Event "Catalan: closed catalan, Ne4 f5"]
[Site "https://lichess.org/study/OAlZZKi1/KHwnQ5je"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.08.10"]
[UTCTime "14:57:25"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O Ne4 7. Nc3 f5 8. Ne5 c6 9. f3 Nxc3 10. bxc3 Nd7 11. Nxd7 Bxd7 12. e4 fxe4 13. fxe4 Rxf1+ 14. Qxf1 *
[Event "Catalan: __________________________________"]
[Site "https://lichess.org/study/OAlZZKi1/zeJdSUFI"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "?"]
[Opening "?"]
[UTCDate "2021.04.07"]
[UTCTime "09:48:22"]
[Variant "Standard"]

*
[Event "Catalan: Catalan, KID"]
[Site "https://lichess.org/study/OAlZZKi1/2fWDWI2R"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E63"]
[Opening "King's Indian Defense: Fianchetto Variation, Panno Variation"]
[UTCDate "2021.03.26"]
[UTCTime "05:19:08"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... g6 $6 { [%eval 0.63] Inaccuracy. e6 was best. } ( 1... e6 2. c4 d5 3. Nf3 Nf6 4. cxd5 exd5 5. Bf4 c5 6. Nc3 ) 2. c4 { [%eval 0.25] } 2... Bg7 { [%eval 0.51] } 3. Nf3 { [%eval 0.05] } 3... d6 $6 { [%eval 0.57] Inaccuracy. Nf6 was best. } ( 3... Nf6 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb1 ) 4. g3 { [%eval 0.43] } 4... Nf6 { [%eval 0.37] } 5. Bg2 { [%eval 0.29] } 5... O-O { [%eval 0.59] } 6. O-O { [%eval 0.52] } 6... Nc6 { [%eval 0.39] } ( 6... Bg4 ) ( 6... Bf5 7. Nh4 Be4 8. Nf3 Bf5 { [%csl Gh2] } 9. h3 Nbd7 ) 7. Nc3 { [%eval 0.48] } ( 7. d5 Na5 8. Nfd2 c5 9. Nc3 a6 10. Qc2 Rb8 11. b3 b5 12. Bb2 bxc4 13. bxc4 Bh6 14. f4 e5 15. dxe6 Bxe6 16. Nd5 Rxb2 17. Qxb2 Bg7 ) 7... a6 { [%eval 0.48] } ( 7... e5 8. d5 Ne7 9. e4 Nd7 { typical KID manuver [%cal Gf3e1,Ge1d3,Gc4c5,Gb2b4] } 10. Ne1 f5 11. Nd3 Nf6 12. Bg5 h6 13. Bxf6 Bxf6 14. f4 exf4 15. Nxf4 Be5 16. exf5 Bxf5 17. Qd2 ) 8. h3 { [%eval 0.52] } 8... Rb8 9. e4 b5 ( 9... e5 10. d5 Ne7 { as always, white tries to shred open the queenside and defend against black's kingside pawnstorm. [%cal Gb2b4,Ga2a4,Gc4c5,Gb4b5,Ga4a5,Gc5c6,Gf3d2,Rf7f5,Rf6d7,Rg6g5,Rh7h5,Rf5f4] } ) 10. e5 dxe5 11. dxe5 Qxd1 12. Rxd1 Nd7 13. e6 fxe6 14. cxb5 axb5 15. Bf4 Nde5 16. Nxe5 Nxe5 17. Rac1 c5 18. Ne4 c4 19. Nc5 Rb6 *
[Event "Catalan: Catalan, KID (e5)"]
[Site "https://lichess.org/study/OAlZZKi1/D8Up24af"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E68"]
[Opening "King's Indian Defense: Fianchetto Variation, Long Variation"]
[UTCDate "2021.04.06"]
[UTCTime "06:03:38"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... Nf6 { [%eval 0.19] } 2. c4 { [%eval 0.14] } 2... g6 { [%eval 0.28] } 3. Nf3 { [%eval 0.25] } 3... Bg7 { [%eval 0.0] } 4. g3 { [%eval 0.0] } 4... O-O { [%eval 0.21] } 5. Bg2 { [%eval 0.13] } 5... d6 { [%eval 0.59] } 6. O-O { [%eval 0.52] This bishop is a very important piece in the KID, try to trade it off. [%csl Rc8] } 6... Nbd7 { [%eval 0.7] } 7. Nc3 { [%eval 0.56] } 7... e5 { [%eval 0.71] } 8. e4 { [%eval 0.58] } 8... exd4 { [%eval 0.56] } ( 8... c6 9. h3 Qb6 10. Re1 exd4 11. Nxd4 Re8 12. Nc2 ) 9. Nxd4 { [%eval 0.7] now because d5 hasn't been played, the center is not locked and black cannot launch a kingside attack in the typical KID fashion. However, black's bishop is now open and will be one of black's best pieces. } 9... Re8 { [%eval 0.84] } 10. h3 { [%eval 0.83] } 10... Nc5 11. Re1 a5 ( 11... Bd7 12. Rb1 { getting the rook off the diagonal } 12... h6 13. Kh2 a5 14. b3 h5 { do not try to fianchetto the DSB, it is often a bad idea although it isn't necessarily "bad". In positions similar to this, try to lock black's pawns. If black is able to rip open your kingside you are often losing. [%cal Rc1b2] } ) 12. Qc2 a4 13. Be3 c6 14. Rad1 Qa5 15. Bf4 Bf8 *
[Event "Catalan: Catalan, KID (c5)"]
[Site "https://lichess.org/study/OAlZZKi1/oYek3VC0"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E60"]
[Opening "King's Indian Defense: Fianchetto Variation, Yugoslav System"]
[UTCDate "2021.03.30"]
[UTCTime "07:12:35"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... Nf6 { [%eval 0.19] } 2. c4 { [%eval 0.14] } 2... g6 { [%eval 0.28] } 3. Nf3 { [%eval 0.25] } 3... Bg7 { [%eval 0.0] } 4. g3 { [%eval 0.0] } 4... O-O { [%eval 0.21] } 5. Bg2 { [%eval 0.13] } 5... d6 { [%eval 0.59] } 6. O-O { [%eval 0.52] } 6... c5 { [%eval 0.5] } 7. d5 { [%eval 0.46] } 7... b5 { [%eval 0.74] } 8. cxb5 { [%eval 0.57] } 8... a6 { [%eval 0.66] } 9. bxa6 { [%eval 0.51] basically the benko gambit except you have already castled. Black will try to chip away and pressure your queenside. I personally struggle i this position so I tend to avoid this and similar positions. } 9... Bxa6 { [%eval 0.73] } 10. Nc3 { [%eval 0.9] } 10... Nbd7 { [%eval 0.62] } 11. Rb1 { [%eval 0.76] } *
[Event "Catalan: Catalan, Slav"]
[Site "https://lichess.org/study/OAlZZKi1/kaMtZhKY"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D11"]
[Opening "Slav Defense: Modern Line"]
[UTCDate "2021.06.18"]
[UTCTime "20:31:03"]
[Variant "Standard"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 ( 3... Bf5 4. g3 e6 5. Bg2 Nf6 6. O-O Nbd7 7. Nc3 ) 4. g3 Bf5 ( 4... dxc4 5. Bg2 b5 { In any of the following lines, if black chooses to take when you push a pawn the rest of their pawns become weak and you will win them back slowly } 6. Ne5 Bb7 7. O-O { castling is good here, we are in no rush to win back our pawn } 7... e6 8. a4 a6 9. b3 cxb3 { if Qxb3, d4 is hanging. according to the lichess database most people here take with queen but that is a huge blunder } 10. Bb2 ( 10. Qxb3 ) 10... bxa4 ( 10... Nbd7 11. Nxc6 Qb6 12. a5 Qc7 13. Nd2 Bxc6 14. Rc1 { bishop is pinned, common theme in slav catalan } 14... Nc5 15. Bxc6+ Qxc6 16. Nxb3 { here white's lightsquare are very weak, black might try to attack using the lightsquares but in the absence of a light squared bishop attaxking prospects are not that scary [%csl Gg2,Gf3,Gh3][%cal Rh7h3] } ) ( 10... b4 { we need to stop a5 [%cal Ra6a5] } 11. a5 Nbd7 { [%cal Gb1d2,Gd2b3] } ) ) 5. Nc3 { Important: In most slav positions Nc3 is better than the standard Nd2. This is because black's light squared bishop controls c2 which where the queen normally goes in order to support e4. Because of that, we need to support e4 by playing Nc3 and Nd2 so there is more support for the e4 break. [%csl Ge4][%cal Gb1c3,Gf3d2,Gf1g2,Gg2e4,Gc3e4,Gd2e4] } ( 5. Bg2 { no difference, just different move order } 5... e6 ( 5... Nbd7 6. Qb3 Qb6 ) 6. Nc3 ) 5... e6 6. Bg2 ( 6. Nh4 Bg6 ( 6... Bg4 7. h3 Bh5 8. Qb3 ( 8. g4 Bg6 9. Nxg6 hxg6 10. Bg2 Nbd7 ) 8... Qb6 9. c5 Qxb3 ( 9... Qc7 10. Bf4 Qc8 11. g4 Bg6 ) 10. axb3 Be7 11. b4 Na6 12. b5 ( 12. Ra4 Ne4 13. Nf3 Nxc3 14. bxc3 ) ) ( 6... Be4 7. f3 Bg6 ) 7. Nxg6 hxg6 8. Qd3 Nbd7 9. Bg2 Be7 { although black has an open file, there are almost no attacking prospects } 10. O-O O-O 11. Rd1 Re8 ) 6... Nbd7 7. O-O Be7 8. Nh4 ( 8. Nd2 O-O 9. e4 dxe4 10. Ndxe4 Nxe4 ( 10... Nb6 ) 11. Nxe4 Nf6 12. Nc3 Qb6 ) 8... Bg6 9. Nxg6 hxg6 { Black could try to use this diagonal to attack but it is hard for black to transfer their queen to white's kingside so attacking usually wont work [%cal Rh8h1] } 10. e4 { The standard pawn break } 10... dxe4 ( 10... dxc4 11. Qe2 e5 12. d5 cxd5 13. exd5 a6 14. Qxc4 ) 11. Nxe4 Nxe4 12. Bxe4 Nf6 13. Bg2 O-O 14. Be3 { Standard move in positions where white is missing an e pawn [%csl Ge3] } 14... Qc7 15. Qe2 { [%csl Gd4][%cal Gf1d1,Gd1d2,Ga1d1,Ra8d8,Rd8d7,Rf8d8] } *
[Event "Catalan: Catalan, Semi-Slav (3. e6)"]
[Site "https://lichess.org/study/OAlZZKi1/AjHOL4RQ"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D11"]
[Opening "Slav Defense: Modern Line"]
[UTCDate "2021.04.20"]
[UTCTime "00:15:54"]
[Variant "Standard"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. g3 Nf6 5. Bg2 Nbd7 6. O-O ( 6. Qc2 ) 6... Bd6 7. Nc3 O-O 8. Nd2 { preparing e4 } 8... Re8 9. e4 dxe4 10. Ndxe4 Nxe4 11. Nxe4 Be7 12. c5 ( 12. Bf4 ) *
[Event "Catalan: Catalan, Semi-Slav (open)"]
[Site "https://lichess.org/study/OAlZZKi1/Nc45laU6"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.05.20"]
[UTCTime "00:23:23"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 c6 6. O-O dxc4 7. Ne5 ( 7. a4 Nbd7 8. Na3 ) 7... O-O 8. Nxc4 b5 9. Ne5 Bb7 10. a4 *
[Event "Catalan: Catalan, Slav (3. Bf5)"]
[Site "https://lichess.org/study/OAlZZKi1/lF2wJw1O"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D11"]
[Opening "Slav Defense: Modern Line"]
[UTCDate "2021.04.05"]
[UTCTime "18:30:28"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... c6 { [%eval 0.4] } 3. Nf3 { [%eval 0.16] } 3... Bf5 $6 { [%eval 0.91] Inaccuracy. e6 was best. } ( 3... e6 4. e3 b6 5. Bd3 Nf6 6. Nbd2 Bb7 7. O-O Nbd7 8. b3 ) ( 3... Bg4 ) 4. cxd5 { [%eval 0.36] } ( 4. Qb3 $6 { Inaccuracy. cxd5 was best. } 4... Qb6 ) 4... cxd5 { [%eval 0.48] } 5. Qb3 Nc6 6. Nc3 Nf6 7. Qxb7 Bd7 8. Bf4 e5 9. Nxe5 Rb8 10. Nxc6 Rxb7 11. Nxd8 Kxd8 12. O-O-O *
[Event "Catalan: Catalan, Slav (Bg4)"]
[Site "https://lichess.org/study/OAlZZKi1/72wCJZPr"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D11"]
[Opening "Slav Defense: Modern Line"]
[UTCDate "2021.03.30"]
[UTCTime "21:58:58"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... c6 { [%eval 0.4] } 3. Nf3 { [%eval 0.16] } 3... Bg4 $6 { [%eval 0.75] Inaccuracy. e6 was best. } ( 3... e6 4. e3 b6 5. Bd3 Nf6 6. Nbd2 Bb7 7. O-O Nbd7 8. b3 ) ( 3... Bf5 4. Nc3 ( 4. cxd5 cxd5 5. Qb3 Nc6 ) 4... e6 5. Qb3 Qb6 6. c5 ) ( 3... Nf6 4. g3 Bg4 ) 4. Ne5 { [%eval 0.71] } 4... Bh5 $2 { [%eval 2.03] Mistake. Bc8 was best. } ( 4... Bc8 5. cxd5 cxd5 6. Nc3 Nd7 7. e4 dxe4 8. Qb3 e6 9. Bb5 ) ( 4... Bf5 { trappy line :) } 5. cxd5 cxd5 6. e4 Bxe4 ( 6... dxe4 7. Bc4 Be6 ( 7... e6 8. Bb5+ Ke7 ) 8. Bxe6 fxe6 9. Qh5+ g6 10. Nxg6 hxg6 11. Qxh8 Nf6 12. Qh3 ) 7. Bb5+ Nc6 8. Nxc6 bxc6 9. Bxc6+ Qd7 10. Bxd7+ ) 5. Qb3 { [%eval 2.08] } 5... Qb6 $6 { [%eval 3.13] Inaccuracy. Nd7 was best. } ( 5... Nd7 6. Qxb7 Nxe5 7. dxe5 Qc8 8. Qxc8+ Rxc8 9. cxd5 cxd5 10. Nc3 e6 ( 10... d4 11. Nb5 ) 11. e4 ) 6. Qh3 { [%eval 3.32] } 6... Nf6 { [%eval 3.33] } 7. Qc8+ { [%eval 3.41] one of my favorite traps } 7... Qd8 { [%eval 0.79] } 8. Qxb7 { [%eval 3.44] } 8... Nbd7 { [%eval 3.84] } 9. Nxc6 { [%eval 3.64] } 9... Qc8 { [%eval 3.8] } 10. Qxc8+ { [%eval 3.8] } 10... Rxc8 { [%eval 3.97] } 11. Nxa7 { [%eval 3.79] } 11... Rxc4 { [%eval 3.6] } 12. Na3 { [%eval 4.01] } 12... Ra4 { [%eval 4.51] } 13. N3b5 e6 14. b3 Bb4+ 15. Bd2 Bxd2+ 16. Kxd2 *
[Event "Catalan: Catalan, QID 2"]
[Site "https://lichess.org/study/OAlZZKi1/V3GXChzm"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E15"]
[Opening "Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Quiet Line"]
[UTCDate "2021.04.30"]
[UTCTime "22:12:57"]
[Variant "Standard"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 { important move, it is the best way to protect the c4 pawn. } ( 5. e3 d5 6. Nbd2 c5 ) 5... d5 ( 5... Bb4+ 6. Bd2 Be7 7. Bg2 c6 { preparing d5 } 8. Bc3 { DSB belongs on the long diagonal, the knight belongs on d2 [%cal Gb1d2,Gc3h8] } 8... d5 9. Nbd2 ( 9. Ne5 { just assisting with the recapture on c4. there is no real pressure on c6 } ) 9... Nbd7 { just developing } 10. O-O O-O 11. Re1 ) ( 5... Bb7 6. Bg2 Bb4+ 7. Bd2 ) 6. Bg2 Bb4+ ( 6... dxc4 7. Ne5 Bb4+ ( 7... Nbd7 ) 8. Kf1 Bd6 9. Nxc4 ) 7. Bd2 Be7 8. cxd5 exd5 9. O-O O-O 10. Nc3 Bb7 11. Qc2 { open c file, rooks belong here long term [%cal Ga1c1,Gc1c2,Gf1c1] } *
[Event "Catalan: Catalan, QID 3"]
[Site "https://lichess.org/study/OAlZZKi1/SYrtIRAW"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E19"]
[Opening "Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line"]
[UTCDate "2021.05.02"]
[UTCTime "20:02:33"]
[Variant "Standard"]

1. d4 b6 2. c4 Bb7 3. Nf3 e6 4. g3 Nf6 5. Bg2 Be7 6. Nc3 O-O 7. O-O ( 7. d5 { Anti-QID system, if black snap takes on d5 you will have a perfect position but is black knows theory you could get into very sharp and dangerous positions. [%cal Rb7e4] } 7... exd5 ( 7... Bb4 8. Bd2 Na6 9. O-O Nc5 ) 8. cxd5 d6 { a good weapon against the QID. Black is now in a terrible position with a bad fianchettoed bishop. If black plays Bb4 its a bit harder tho. } ) 7... Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 { [%cal Gb2b3,Gc1b2,Gf1d1] } *
[Event "Catalan: Catalan, QID (sharp)"]
[Site "https://lichess.org/study/OAlZZKi1/3YxPmCcF"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E17"]
[Opening "Queen's Indian Defense: Classical Variation, Polugaevsky Gambit"]
[UTCDate "2021.03.30"]
[UTCTime "06:57:17"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... b6 $6 { [%eval 0.91] Inaccuracy. e6 was best. } ( 1... e6 2. c4 d5 3. Nf3 Nf6 4. cxd5 exd5 5. Bf4 c5 6. Nc3 ) 2. c4 $6 { [%eval 0.34] Inaccuracy. e4 was best. } ( 2. e4 Bb7 3. Bd3 e6 4. Nf3 d5 5. e5 Qd7 6. c3 Ba6 ) 2... Bb7 { [%eval 0.21] } 3. Nf3 { [%eval 0.27] } 3... Nf6 { [%eval 0.39] } 4. g3 { [%eval 0.33] } 4... e6 { [%eval 0.32] } 5. Bg2 { [%eval 0.31] } 5... Be7 { [%eval 0.36] } 6. O-O { [%eval 0.25] } 6... O-O { [%eval 0.38] } 7. d5 { [%eval 0.0] important move, opens up the position } ( 7. Nc3 d5 8. Ne5 Nbd7 9. Qa4 Nxe5 10. dxe5 Ne4 11. Nxe4 dxe4 12. Rd1 ) 7... exd5 { [%eval 0.0] } 8. Nh4 { [%eval 0.43] } 8... c6 { [%eval 0.27] } 9. cxd5 { [%eval 0.33] } 9... Nxd5 10. Nf5 Nc7 *
[Event "Catalan: Catalan, Dutch"]
[Site "https://lichess.org/study/OAlZZKi1/RQPY9C0R"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "A81"]
[Opening "Dutch Defense: Fianchetto Attack"]
[UTCDate "2021.03.26"]
[UTCTime "05:21:00"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... f5 { [%eval 0.55] } 2. g3 { [%eval 0.52] } 2... d6 { [%eval 0.76] } 3. Bg2 { [%eval 0.67] } 3... g6 { [%eval 0.91] } 4. c4 { [%eval 0.6] } 4... Bg7 { [%eval 0.65] } 5. Nc3 { [%eval 0.5] } 5... Nf6 { [%eval 0.63] } 6. Nf3 { [%eval 0.53] } 6... O-O { [%eval 0.69] } 7. O-O { [%eval 0.25] } 7... Qe8 { [%eval 0.51] } ( 7... Nc6 8. d5 Na5 9. Qd3 c5 10. b3 a6 11. Bb2 Rb8 12. Rab1 Bd7 { [%cal Rb7b5] } 13. e4 ( 13. Nd2 ) 13... fxe4 14. Nxe4 { White has a very strong attack here } ) 8. d5 { [%eval 0.92] remember this move, this prevents e5 } 8... Na6 { [%eval 0.75] } 9. Rb1 { [%eval 0.73] } 9... Bd7 { [%eval 1.01] } 10. b4 { [%eval 1.02] } 10... c6 { [%eval 1.38] } 11. dxc6 $6 { [%eval 0.78] Inaccuracy. c5 was best. } ( 11. c5 ) 11... bxc6 { [%eval 0.84] } 12. a3 { [%eval 0.74] } 12... Nc7 { [%eval 0.74] } 13. Bb2 { [%eval 0.97] } *
[Event "Catalan: Catalan, Tarrasch"]
[Site "https://lichess.org/study/OAlZZKi1/cVctONEw"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D34"]
[Opening "Tarrasch Defense: Classical Variation"]
[UTCDate "2021.04.15"]
[UTCTime "05:51:32"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c5 5. cxd5 ( 5. Bg2 Nc6 ) 5... exd5 ( 5... cxd4 6. dxe6 Bxe6 7. Qxd4 ) ( 5... Nxd5 6. Bg2 cxd4 ( 6... Nc6 7. O-O Be7 8. dxc5 Bxc5 9. e4 ( 9. Qc2 Qe7 10. Rd1 O-O ) 9... Ndb4 10. Qxd8+ Nxd8 11. Nc3 Bd7 12. Ne5 Bc6 13. a3 Nc2 14. Rb1 f6 15. Nxc6 Nxc6 16. b4 Bd4 17. Nb5 O-O-O 18. Nxd4 ) 7. Nxd4 { from here just develop normally } 7... Bb4+ ( 7... Be7 8. O-O O-O 9. e4 Nb4 10. Be3 N8c6 11. Nxc6 { black cannot try to trade queens here because Nxe7 comes with check } ) 8. Bd2 ) 6. Bg2 Nc6 ( 6... cxd4 7. Nxd4 Be7 8. O-O ) 7. O-O Be7 ( 7... c4 8. b3 ( 8. Nc3 Be7 9. Ne5 Nxe5 10. dxe5 Nd7 11. Qxd5 { neat trick, you are now completely winning } 11... O-O 12. e6 fxe6 13. Qxe6+ Kh8 14. Qxc4 ) 8... cxb3 9. Qxb3 Be7 10. Nc3 ) 8. Nc3 O-O { [%cal Gd4c5] } *
[Event "Catalan: Catalan, Tarrasch (3. c5)"]
[Site "https://lichess.org/study/OAlZZKi1/p8ylox2S"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D34"]
[Opening "Tarrasch Defense: Classical Variation, Main Line"]
[UTCDate "2021.03.26"]
[UTCTime "05:29:49"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... e6 { [%eval 0.31] } 3. Nf3 { [%eval 0.0] } 3... c5 $6 { [%eval 0.51] } 4. cxd5 { [%eval 0.46] } 4... exd5 { [%eval 0.49] } 5. g3 { [%eval 0.34] } 5... Nc6 { [%eval 0.75] } 6. Bg2 { [%eval 0.67] } 6... Nf6 { [%eval 0.59] } 7. O-O { [%eval 0.51] } 7... Be7 { [%eval 0.44] } 8. Nc3 { [%eval 0.19] } 8... O-O { [%eval 0.53] } 9. Bg5 { [%eval 0.16] } 9... cxd4 { [%eval 0.65] } 10. Nxd4 { [%eval 0.72] } 10... h6 { [%eval 0.58] } 11. Be3 { [%eval 0.75] awkward but neccisary to not have to take back the knight with the queen } 11... Re8 { [%eval 0.76] } ( 11... Nxd4 12. Bxd4 ) 12. Rc1 { [%eval 0.68] } 12... Bf8 { [%eval 0.78] } 13. Nxc6 $6 { [%eval 0.22] Inaccuracy. Qd3 was best. } ( 13. Qd3 ) ( 13. Qa4 Na5 14. Rcd1 Bd7 15. Qc2 Rc8 ) 13... bxc6 { [%eval 0.24] } 14. Na4 { [%eval 0.2] } 14... Bd7 { [%eval 0.24] } 15. Bc5 { [%eval 0.2] } 15... Bxc5 { [%eval 0.18] } 16. Nxc5 { [%eval 0.17] } 16... Bg4 { [%eval 0.35] } 17. Re1 { [%eval 0.12] } 17... Qa5 { [%eval 0.08] } 18. h3 { [%eval 0.15] } 18... Bf5 { [%eval 0.06] } 19. Qd4 { [%eval 0.24] } 19... Rab8 { [%eval 0.2] } *
[Event "Catalan: Catalan, Stonewall structure"]
[Site "https://lichess.org/study/OAlZZKi1/1HnQUpKW"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D30"]
[Opening "Queen's Gambit Declined"]
[UTCDate "2021.03.30"]
[UTCTime "07:05:35"]
[Variant "Standard"]

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.0] } 2. c4 { [%eval 0.0] } 2... e6 { [%eval 0.31] } 3. Nf3 { [%eval 0.0] } 3... c6 { [%eval 0.44] } 4. g3 { [%eval 0.09] } 4... f5 $6 { [%eval 0.8] Inaccuracy. dxc4 was best. } ( 4... dxc4 5. Bg2 b5 6. O-O Nf6 7. Ne5 Bb7 8. b3 cxb3 9. axb3 ) 5. Bg2 { [%eval 0.58] } ( 5. Bf4 Nf6 6. Bg2 Be7 7. O-O O-O 8. Nbd2 Nbd7 9. Qc2 Ne4 10. Nxe4 fxe4 11. Ne5 ) 5... Nf6 { [%eval 0.71] } 6. Nc3 { [%eval 0.62] } ( 6. Bf4 Be7 7. Nc3 ) 6... Bd6 { [%eval 0.61] } 7. O-O { [%eval 0.33] } 7... O-O { [%eval 0.48] } 8. Qc2 { [%eval 0.41] } 8... Ne4 9. Rb1 { [%cal Gb2b4] } ( 9. Nxe4 fxe4 10. Ne1 ) 9... Nd7 10. b4 b5 11. cxb5 Nxc3 12. Qxc3 cxb5 13. Bg5 Qb6 14. Rfc1 Bb7 15. Qe3 Rfe8 *
[Event "Catalan: Catalan, Semi-Slav/Stonewall"]
[Site "https://lichess.org/study/OAlZZKi1/e4pJo8bI"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.04.09"]
[UTCTime "01:56:49"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 ( 3... c6 ) 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Qc2 Ne4 8. b3 f5 9. Ba3 ( 9. Ne5 Nd7 10. Nd3 ) *
[Event "Catalan: Catalan, Anti-Catalan (counter fianchetto)"]
[Site "https://lichess.org/study/OAlZZKi1/MrD4V8Fa"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E06"]
[Opening "Catalan Opening: Closed"]
[UTCDate "2021.04.27"]
[UTCTime "18:02:40"]
[Variant "Standard"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O b6 7. cxd5 { always take here } 7... exd5 8. Nc3 Bb7 { [%csl Rh1,Rg2,Rf3,Ge4,Rd5,Rc6,Rb7,Ra8][%cal Bd1c2,Ga1c1,Gf1e1,Gc1f4,Rb8d7,Rf6h5] } 9. Bf4 ( 9. Qc2 c5 10. dxc5 bxc5 11. Rd1 ) 9... Nbd7 ( 9... Nh5 10. Be3 ) 10. Rc1 c6 { [%cal Gd1c2] } ( 10... c5 11. dxc5 Nxc5 12. Nb5 ) 11. Qc2 Re8 12. Rfd1 *
[Event "Catalan: Catalan, Double Fianchetto"]
[Site "https://lichess.org/study/OAlZZKi1/6X4sE8je"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "E60"]
[Opening "King's Indian Defense: Normal Variation, King's Knight Variation"]
[UTCDate "2021.04.22"]
[UTCTime "05:38:36"]
[Variant "Standard"]

1. d4 { This is my favorite weapon against catalan players as black. As you will see, } 1... g6 2. c4 Nf6 3. Nf3 Bg7 4. g3 b6 5. Bg2 Bb7 6. O-O O-O 7. Nc3 { This is an inaccuracy. This move allows Ne4 from black } ( 7. d5 { This is the saving move for white and black's plans are shut down. Like in the QID d5 shuts down the light squared bishop. } 7... Ne4 8. Qc2 f5 9. Nbd2 Nd6 ( 9... Nxd2 10. Bxd2 { [%cal Gd2c3,Gc3g7] } ) 10. e4 ) 7... d6 ( 7... Ne4 8. Bd2 ( 8. Nxe4 Bxe4 9. e3 ( 9. Be3 d6 10. Qd2 c5 { black's bishops are extremely active while white is struggling to defend } 11. Bh6 Nd7 12. Bxg7 Kxg7 13. Rfd1 Nf6 14. Rac1 Qc7 ) ) 8... Nxc3 ( 8... c5 ) 9. Bxc3 Be4 10. Ne5 Bxg2 11. Kxg2 d6 12. Nf3 ) 8. Qc2 { supporting e4 } 8... Nbd7 9. e4 e5 { normal catalan setup } 10. dxe5 ( 10. d5 { this enters a typical KID position after black plays Bc8 and f5 in order to attack. However without the light squared bishop, black may have some trouble attacking white's solid fianchetto kingside. [%cal Ga2a4,Ga4a5] } ) 10... dxe5 11. Rd1 { An idea to pin the knight on f6 with Bg5? Black will have to move their queen. [%cal Rc7c5,Gc3d5] } *
[Event "Catalan: __________________________________"]
[Site "https://lichess.org/study/OAlZZKi1/B7M9j6Q6"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "?"]
[Opening "?"]
[UTCDate "2021.04.27"]
[UTCTime "18:13:48"]
[Variant "Standard"]

*
[Event "Catalan: Benoni (d4 c5)"]
[Site "https://lichess.org/study/OAlZZKi1/jTFecyvP"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "A67"]
[Opening "Benoni Defense: Taimanov Variation"]
[UTCDate "2021.04.22"]
[UTCTime "05:43:18"]
[Variant "Standard"]

1. d4 c5 2. d5 e6 ( 2... Nf6 3. c4 b5 4. cxb5 a6 5. bxa6 g6 ) ( 2... d6 3. c4 e5 4. e4 Be7 5. Nf3 Bg4 6. Nbd2 Nf6 7. Bd3 O-O 8. h3 Bh5 9. O-O ) 3. c4 Nf6 ( 3... exd5 4. cxd5 Nf6 5. Nc3 d6 6. e4 Be7 7. f3 O-O 8. Be3 a6 9. a4 ) ( 3... b5 ) 4. Nc3 exd5 ( 4... d6 5. e4 g6 { [%csl Gf1] } 6. Bd3 Bg7 7. Nf3 ) 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ ( 8. Nf3 O-O 9. Be2 Re8 10. e5 dxe5 11. fxe5 Ng4 12. Bg5 Qb6 13. O-O Nxe5 14. d6 Be6 15. Nd5 ) 8... Nfd7 ( 8... Bd7 9. e5 dxe5 10. fxe5 Nh5 11. Nf3 O-O 12. O-O Bg4 ) 9. a4 O-O 10. Nf3 Na6 11. O-O Nb4 12. Re1 a6 13. Bf1 { [%cal Gg2g4,Gh2h4,Gh4h5] } *
[Event "Catalan: Grünfeld/Neo-Grünfeld (early d5)"]
[Site "https://lichess.org/study/OAlZZKi1/dtNdvUCx"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/Derrick1Rose"]
[ECO "D70"]
[Opening "Neo-Grünfeld Defense: with Nf3"]
[UTCDate "2021.05.01"]
[UTCTime "05:47:51"]
[Variant "Standard"]

1. d4 Nf6 2. c4 g6 3. Nf3 d5 { Inferior compared to the main line of Grünfeld because white gets the center without a fight, and black can't break the center easily... } ( 3... Bg7 4. g3 d5 5. Bg2 O-O 6. O-O c6 7. Nc3 dxc4 8. Ne5 ( 8. e4 ) 8... Be6 9. e4 Nbd7 10. f4 Nxe5 11. fxe5 ) 4. cxd5 Nxd5 5. e4 Nb6 { [%cal Rc8g4,Gh2h3] } ( 5... Nf6 6. Nc3 Bg7 ) 6. Bb5+ { white cannot fianchetto here because black intends to pressure d4 and eventually take it. The bishop needs to protect the knight on f3 } ( 6. g3 Bg4 7. Bg2 Bg7 ) ( 6. Be2 ) 6... c6 ( 6... Bd7 { [%csl Ba4,Be2][%cal Ba2a4,Bb5e2] } 7. Be2 Bg7 8. h3 Nc6 9. Be3 { [%cal Gb1c3,Gf7f5] } 9... O-O 10. Nc3 f5 11. Qb3+ e6 12. Rd1 ) 7. Be2 Bg7 8. Nc3 Bg4 9. Be3 O-O 10. O-O { White has a significant advantage and an easier game, } 10... Bh5 11. Ne5 Bxe2 12. Qxe2 *
[Event "Íüo^-Éîðê-Ë èîí"]
[Site "Íüo^-Éîðê-Ë èîí"]
[Date "2021.10.03"]
[Round "?"]
[White "Neo-Grünfeld 3"]
[Black "?"]
[Result "*"]
[Annotator ",User"]
[ECO "D77"]
[Opening "Neo-Grünfeld Defense: Classical Variation, Polgar Variation"]
[UTCDate "2021.10.03"]
[UTCTime "03:24:26"]
[Variant "Standard"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 Nc6 6. O-O d5 ( 6... Re8 $6 { If he tries to delay d5 waiting for white to play Nc3 to exchange his Nf6 for
Nc3, black will get what he wants here } 7. Nc3 d5 8. cxd5 Nxd5 9. Nxd5 Qxd5 10. Ne5 $1 Qb5 11. Nxc6 bxc6 { [%csl Rc6][%cal Gg2a8] } 12. Bf4 $16 { [%csl Rc6][%cal Ya1c1,Gg2a8,Ya2a4,Gc1c6] } ) 7. cxd5 Nxd5 8. e4 Nb6 9. d5 { [%cal Bc6e5,Bc6a5] } 9... Na5 ( 9... Ne5 10. Nxe5 Bxe5 11. a4 { [%csl Rb6][%cal Ga4a5] } 11... a5 12. Nc3 e6 13. Bh6 Re8 14. Rc1 exd5 ( 14... c6 { Black is putting more pressure on d5, but white must maintain the tension
to keep his space advantage } 15. Qb3 { [%csl Rb6][%cal Gb6d7,Yf1d1,Yd1d8,Gh6e3] } 15... exd5 16. exd5 Nxd5 17. Nxd5 cxd5 18. Bxd5 Be6 19. Rfd1 $16 Bxd5 $2 20. Rxd5 Qf6 21. Rd7 $18 ) 15. exd5 { d5 pawn is isolated, but we have much more piece
activity than black to compensate for that. } 15... Bd7 16. b3 Nc8 { Maneuvering the knight to d6 [%csl Rd5][%cal Gc8d6] } 17. Re1 Nd6 18. Qd2 $16 { [%csl Re6][%cal Gh6g5,Gg5d8,Bf7f6,Re6g8] } ) 10. Qe1 { [%cal Ge1a5] } 10... Nac4 11. Nc3 e6 12. Bg5 $1 { Starting a sequence where white sacrifices a pawn for more activity. } 12... f6 { [%cal Gg5c1] } ( 12... Qd6 13. b3 Ne5 14. Nd4 c6 15. Rd1 $14 { [%csl Rd6][%cal Gd1d6] } ) 13. Bc1 $1 { This might seem like a waste of time or loss of tempo at
first glance; but after black pushed f6, but the loss of tempo is justified
because -the dark squared bishop is blocked -the squares around f6 (most
prominent being e6) has been weakened -the a2 g8 diagonal has been opened } 13... exd5 14. exd5 Nxd5 15. Nd4 Nxc3 16. Qxc3 { [%csl Rc4][%cal Gc3c4] } 16... Ne5 17. Rd1 Bg4 ( 17... Qe7 18. f4 Nf7 19. Re1 { [%cal Ge1e7] } 19... Qd6 20. Be3 c6 21. Rad1 Qc7 { [%cal Rc8g4,Bh2h3] } 22. h3 { [%csl Ra7][%cal Bd4b5,Bb5a7] } ) 18. f3 c5 { Giving the pawn back is the best response for black } ( 18... Bd7 19. f4 Nf7 20. Ne6 ) 19. fxg4 cxd4 20. Rxd4 Qe7 21. Be3 Rac8 22. Qb3+ Kh8 23. Rad1 b6 24. h3 $14 { Freeing the Rd4 from defending the g4 pawn
White has the bishop pair and is slightly better } 24... Rfd8 25. Rxd8+ Rxd8 26. Rxd8+ Qxd8 27. Qa4 Qe7 28. Qe4 { Centralizing the queen. [%cal Ge4a8] } *
[Event "Openings: Introduction"]
[Site "https://lichess.org/study/sH3d049K/jChE8HbU"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/mysterious_expert"]
[ECO "?"]
[Opening "?"]
[UTCDate "2018.01.31"]
[UTCTime "23:40:37"]
[Variant "Standard"]

{ Today we will be reviewing openings and it may teach you some stuff or fascinate you! Thank you for watching this! We will be going with plenty of lines to give you a choice. If you want to find out further stuff analyse and I will be doing only one opening per study studies. } *
[Event "Openings: Sicilian Najdorf"]
[Site "https://lichess.org/study/sH3d049K/WwpaohjO"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "https://lichess.org/@/mysterious_expert"]
[ECO "B95"]
[Opening "Sicilian Defense: Najdorf Variation"]
[UTCDate "2018.01.31"]
[UTCTime "23:47:41"]
[Variant "Standard"]

{ First stop- the Sicilian!! } 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 { This is Sicilian Najdorf with sharp theory. } 6. Bg5 { The sharpest line. } ( 6. Be3 e5 7. Nb3 Be7 8. Be2 O-O 9. O-O Be6 10. Qd2 Nbd7 11. a4 ) ( 6. Be2 e5 7. Nb3 Be7 8. h3 O-O 9. O-O ) ( 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. Qf3 Qc7 10. Qg3 O-O 11. Bh6 Ne8 { Black defended everything so he is fine here. } ) ( 6. h3 { Which i like } 6... e5 7. Nb3 Be6 8. f4 Be7 9. f5 Bxb3 10. axb3 Nc6 11. Be2 ) ( 6. f3 { I used to play this line but now I find it not the best touch for me. } 6... e5 7. Nb3 Be7 8. Be3 O-O 9. Qd2 Be6 10. O-O-O b5 11. g4 { In this variation it is all about the race. A tempo can decide the whole game here. } ) 6... e6 ( 6... Nbd7 7. Bc4 Qb6 8. Bb3 e6 9. Qd2 Be7 10. O-O-O ) ( 6... Nc6 7. Qd2 e6 8. O-O-O Bd7 9. f4 h6 10. Bh4 Be7 ( 10... g5 $5 11. fxg5 Ng4 12. Nxc6 Bxc6 13. Kb1 Ne5 ) 11. Nf3 Qc7 12. Kb1 ) 7. Be2 Be7 8. O-O O-O 9. Qd3 b5 10. Bf3 Ra7 { So I warn you, play this if you want an epic and BIG battle! } *