[Event "Jogos de Juventude 2023"] [Site "Avaré-SP"] [Date "2023.04.25"] [Round "?"] [Board "1"] [White "Matheus"] [Black "Gustavo Henrique"] [Result "0-1"] [ECO "C42"] [Annotator "https://lichess.org/@/renatoavarechess"] [PlyCount "41"] [EventDate "2023.??.??"] 1. e4 {[%eval 36,0]} e5 {[%eval 35,0]} 2. Nf3 {[%eval 29,0]} Nf6 {[%eval 5,0]} 3. Nxe5 {[%eval 34,0]} Nc6 $6 {[%eval 104,0] Hou Yifan - Dubov, Daniil, 0-1, Goldmoney Asian Prelim, 2021, https://lichess.org/YiHFyvbB Gambito Stafford Pretas propoem uma troca de cavalos. As brancas ficando com vantagem material de um peão são compelidas a aceitar a troca. 4. Nxc6 é a continuação principal Nessa posição, o mais normal é jogar 3.... d4} 4. Nxc6 {[%eval 203,0]} dxc6 {[%eval 253,0]} 5. Nc3 $6 {[%eval 108,0] Inaccuracy. d3 was best.} (5. d3 Be6 6. Be2 Qe7 7. Nc3 O-O-O 8. Be3 Rg8 9. f4 g5 $14) 5... Bc5 {[%eval 236,0]} 6. Bc4 $4 {[%eval 57,0] Blunder. h3 was best.} (6. h3 {A ideia é evitar um possível ataque fegatello com Cg4} Bd4 7. d3 Be6 8. g3 Qd6 9. Bg2 O-O-O 10. Ne2 Bb6) 6... O-O $2 {[%eval 74,0] Mistake. Ng4 was best.} (6... Ng4 7. Rf1 (7. O-O $4 Qh4 8. h3 Nxf2 $19) 7... Qf6 8. Qe2 Nxh2 9. Rh1 Ng4 10. f3 Qe5 11. Na4) 7. O-O $6 {[%eval 0,0] Inaccuracy. Qe2 was best.} (7. Qe2 Ng4 8. f3 b5 9. Bb3 Ne5 10. d3 a5 11. a3 Bd4) 7... Re8 $4 {[%eval 207,0] Blunder. Ng4 was best.} (7... Ng4 {[%csl Gh4][%CAl Gc5f2,Gg4f2,Gd8h4,Gh4f2,Gh4h2] Qual é a finalidade do gambito? Abrir mão de um peão para ter iniciativa. Então as pretas sempre tem que optar pela conduta mais agressiva.} 8. Be2 Qh4 9. Bxg4 Bxg4 10. Qe1 f5 11. Kh1 fxe4 12. Nxe4) 8. d3 {[%eval 251,0]} h6 {[%eval 304,0]} 9. h3 {[%eval 265,0]} a5 $6 {[%eval 374,0] Inaccuracy. b5 was best. Lance aparentemente aleatório, sem nenhum objetivo claro} (9... b5) 10. a4 {[%eval 378,0]} Be6 {[%eval 374,0]} 11. Bxe6 {[%eval 405,0]} Rxe6 {[%eval 429,0] A pergunta que se faz é: por que a engine dá uma vantagem tão gritante para as brancas? Tal se dá por conta das simplificações que vão ocorrendo ao longo do jogo, que vão minando as possibilidades das pretas. As brancas, por seu turno, tem uma opção de um jogo bem agressivo e seus dois peões centrais são bem fortes} 12. Re1 $6 {[%eval 306,0] Inaccuracy. Kh1 was best.} (12. Kh1) 12... Qd6 {[%eval 301,0]} 13. Qe2 $6 {[%eval 225,0]} Rae8 {[%eval 237,0]} 14. Be3 {[%eval 217,0]} Bxe3 {[%eval 212,0]} 15. Qxe3 {[%eval 239,0]} Nd5 {[%eval 234,0][%csl Ge4][%CAl Gc6e4]} 16. Nxd5 $4 {[%eval 42,0] Blunder. Qd4 was best.} (16. Qd4 Nb4 17. Qxd6 cxd6 18. Rac1 d5 19. Kf1 d4 20. Ne2 c5 21. Red1 Rb6 22. c3 Nc6) 16... cxd5 {[%eval 54,0]} 17. Rad1 {[%eval 0,0]} dxe4 {[%eval 12,0]} 18. dxe4 {[%eval 13,0]} Qb4 {[%eval 29,0]} 19. Rd7 $4 {[%eval -600,0] Blunder. Qd4 was best. Perde imediatamente} (19. Qd4 Rxe4 20. Qxb4 axb4 21. Rxe4 (21. Kf1 Kf8 22. b3 Rxe1+ 23. Rxe1 Rxe1+ 24. Kxe1 Ke7 25. Ke2 Kd6) 21... Rxe4 22. Rd8+ $10) 19... Rxe4 {[%eval -593,0]} 20. Rd4 $6 {[%eval -875,0] Inaccuracy. Qxe4 was best.} (20. Qxe4 Rxe4 21. Rxe4 Qxe4 22. Rd1 Qxc2 23. Re1 Kh7 24. b3 Qxb3 25. Rc1 Qxa4 26. h4 Kg6) 20... Rxe3 $6 {[%eval -548,0] Inaccuracy. Qxe1+ was best.} (20... Qxe1+ 21. Qxe1 Rxe1+ 22. Kh2 R1e2 23. Rf4 Rxc2 24. b3 Ree2 25. Kg3 g5 26. Rf5 Kg7 27. h4) 21. Rxe3 {[%eval -547,0]} 0-1 [Event "Jogos da Juventude 2023"] [Site "Avaré"] [Date "2023.04.26"] [Round "?"] [White "Gustavo Ferreira"] [Black "Luis"] [Result "1-0"] [ECO "C62"] [Annotator "https://lichess.org/@/renatoavarechess"] [PlyCount "63"] [EventDate "2023.??.??"] 1. e4 {[%eval 36,0]} e5 {[%eval 35,0]} 2. Nf3 {[%eval 29,0]} Nc6 {[%eval 32,0]} 3. Bb5 {[%eval 34,0]} d6 {[%eval 4,0]} 4. Bxc6+ {[%eval 36,0]} (4. d4 {[%csl Gd5,Gc6][%CAl Gd4d5,Gd5c6] é a continuação mais jogada porque já tem ameaça no cavalo de c6 Bologan, Viktor - Ivanchuk, Vassily, 1-0, Wch Blitz, 2012, https://lichess.org/bIjYl1H3}) 4... bxc6 {[%eval 25,0]} 5. d4 {[%eval 6,0]} Bg4 $6 {[%eval 91,0] Inaccuracy. exd4 was best. Adorjan, Andras - Nagy, Ervin, 1-0, HUN-ch, 1973, https://lichess.org/TngdI4Z2 Essa o cerqueirense tirou do fundo do baú...} (5... exd4 6. Qxd4 Nf6 7. Nc3 Be7 8. Qd3 O-O 9. O-O Nd7 10. Bf4) 6. d5 $4 {[%eval 93,0] Blunder. dxe5 was best. Imprecisão que cria vulnerabilidades. Melhor seria} (6. dxe5 Bxf3 (6... dxe5 7. Qxd8+ Rxd8 8. Be3 a5 9. Nc3 Bxf3 10. gxf3 Ne7) 7. Qxf3 dxe5 8. O-O {[%csl Gc6,Gc7]}) 6... cxd5 {[%eval 66,0]} 7. Qxd5 {[%eval 6,0]} Bxf3 $4 {[%eval 145,0] Blunder. Be7 was best.} (7... Be7 8. h3 Nf6 9. Qb5+ Qd7 10. Qd3 Be6 11. O-O O-O 12. Rd1) 8. gxf3 $2 {[%eval 12,0] Mistake. Qc6+ was best.} (8. Qc6+ {O lance da engine força a perda do roque pelas pretas, como compensação ao peão dobrado}) 8... Nf6 $2 {[%eval 146,0] Mistake. Ne7 was best.} (8... Ne7) 9. Qc6+ {[%eval 157,0]} Nd7 {[%eval 106,0]} 10. Nc3 {[%eval 149,0]} Be7 {[%eval 149,0]} 11. Nd5 {[%eval 158,0]} O-O {[%eval 125,0]} 12. Nxe7+ $2 {[%eval 7,0] Mistake. Rg1 was best. troca questionável de um cavalo centralizado em posto avançado contra um bispo momentaneamente mau} (12. Rg1 {[%csl Gh6,Gg7][%CAl Gc1h6,Gg1g7]} Kh8 13. Be3 Rc8 14. O-O-O Nb6 15. a4 Bh4 16. a5 Nxd5 17. Rxd5 f5 18. exf5 Rxf5) 12... Qxe7 {[%eval 0,0]} 13. Be3 {[%eval 13,0]} Nb6 {[%eval 42,0]} 14. O-O-O {[%eval 23,0]} Rfd8 $6 {[%eval 89,0] Inaccuracy. Qd7 was best.} (14... Qd7 15. Qxd7) 15. Qc3 $6 {[%eval 21,0] Inaccuracy. b3 was best. Lance aleatório, sem finalidade aparente.} (15. b3 Rdc8 16. Rhg1 g6 17. a4 Qe8 18. Qc3 Nd7 19. h4 Nf6 20. Rd3 a6 21. Qc4 Nh5) 15... Qd7 $6 {[%eval 99,0] Inaccuracy. a5 was best.} (15... a5 16. Rd3 Rdc8 17. Qc6 Qe6 18. Kb1 Nc4 19. Bc1 Nb6 20. h4 a4 21. Rg1) 16. b3 {[%eval 99,0]} d5 $2 {[%eval 243,0] Mistake. Qe7 was best.} (16... Qe7 17. a4) 17. Qxe5 {[%eval 206,0]} Qd6 $6 {[%eval 377,0] Inaccuracy. f6 was best.} (17... f6 18. Qc3 Rac8 19. Bc5 c6 20. Rhg1 Qf7 21. a4 Re8 22. Qd4 Kh8 23. Bxb6 axb6 24. Qxb6) 18. Qg3 $6 {[%eval 269,0] Inaccuracy. Qxd6 was best.} (18. Qxd6 Rxd6 19. a4 c6 20. c4 Rd7 21. a5 Nc8 22. exd5 cxd5 23. Rxd5 Rxd5 24. cxd5 Kf8 $18) 18... Qa3+ {[%eval 262,0]} 19. Kb1 {[%eval 275,0]} Na4 $6 {[%eval 408,0] Inaccuracy. Rd7 was best.} (19... Rd7 20. Qe5) 20. Bd4 {[%eval 424,0] Unica resposta a uma forte ameaça de mate, ameaçando mate.} f6 {[%eval 463,0]} 21. Rhg1 {[%eval 453,0]} Rd7 {[%eval 443,0]} 22. e5 $2 {[%eval 273,0] Mistake. Bxf6 was best.} (22. Bxf6 d4 23. Bxd4 Rad8 24. Rd3 g6 25. Ba1 Rxd3 26. cxd3 Qc5 27. Qe5 Qxe5 28. Bxe5 Nc5) 22... Qb4 $2 {[%eval 506,0] Mistake. c5 was best.} (22... c5 23. Ba1 d4 24. f4 Nb6 25. exf6 Nd5 26. Qf3 Rad8 27. Rxg7+ Rxg7 28. Bb2 Qa6 29. fxg7) 23. exf6 {[%eval 499,0]} Nc3+ {[%eval 504,0]} 24. Bxc3 {[%eval 504,0]} Qxc3 {[%eval 409,0]} 25. Qg4 {[%eval 397,0]} Rf7 {[%eval 394,0]} 26. Qe6 $2 {[%eval 237,0] Mistake. fxg7 was best.} (26. fxg7 c6 27. Rd3 Qf6 28. Qh5 Qf5 29. Rg5 Qf4 30. Re5 Rc8 31. Rde3 Rb8 32. a4 Ra8) 26... Qxf6 {[%eval 204,0]} 27. Qxd5 {[%eval 219,0]} Qxf3 {[%eval 227,0]} 28. Qxf3 {[%eval 226,0]} Rxf3 {[%eval 203,0]} 29. Rd7 {[%eval 206,0]} Rxf2 $4 {[%eval 632,0] Blunder. Rf7 was best. Erro de iniciante que "paga pra ver na troca de peões". Só esqueceu de lembrar que deixar seu adversário dobrar as torres na setima com seu rei na primeira fileira é suicídio.} (29... Rf7 30. Rxf7 Kxf7 31. Rg4 g6 32. Rc4 Rc8 33. Rh4 h5 34. Ra4 g5 35. Rxa7 Kg6 36. a4) 30. Rgxg7+ {[%eval 631,0]} Kf8 {[%eval 607,0]} 31. Rxh7 {[%eval 612,0]} c5 $4 {[%eval 32766,0] Checkmate is now unavoidable. Rg2 was best.} (31... Ke8) (31... Rg2 32. Rh8+ Rg8 33. Rxg8+ Kxg8 34. Rxc7 a5 35. Kb2 Rf8 36. Ka3 Rf4 37. h4 Kf8 38. c3) 32. Rh8# {Mesmo que se defendesse o mate, era só trocar as torres e o massacre nos ultimos peões sobreviventes seria inevitavel} 1-0 [Event "Jogos da Juventude 2023"] [Site "Avaré"] [Date "2023.04.26"] [Round "?"] [White "Yako"] [Black "Pedro Boato"] [Result "0-1"] [ECO "C20"] [Annotator "https://lichess.org/@/renatoavarechess"] [PlyCount "34"] [EventDate "2023.??.??"] [WhiteTeam "Cerqueira César"] [BlackTeam "Avaré"] 1. e4 e5 2. Bb5 Nf6 3. h3 a6 4. Nf3 axb5 5. Nxe5 Bd6 6. Na3 Bxe5 7. g4 Nxe4 8. Qf3 Ng5 9. Nxb5 Nxf3+ 10. Ke2 Nd4+ 11. Kd1 Nxb5 12. d3 Qh4 13. Rf1 Qxh3 14. Re1 Qf3+ 15. Re2 d6 16. a4 Bxg4 17. c3 Qxe2# 0-1