[Event "Opening Traps in the French Defence: #1 En passant Mate"]
[Site "https://lichess.org/study/1FfnWmiJ/2k7YsS4R"]
[Date "1928"]
[Round "?"]
[White "Gaudersen"]
[Black "Faul"]
[Result "1-0"]
[Annotator "https://lichess.org/@/Jonnyx"]
[ECO "C02"]
[Opening "French Defense: Advance Variation"]
[UTCDate "2020.06.12"]
[UTCTime "12:32:23"]
[Variant "Standard"]

{ You can watch the analyse of the game as a video aswell: https://www.youtube.com/watch?v=FjLqfYegVRI The In this game you will see a tactical motive that can occure in many openings, like the French Defence or the London System. I even saw a game where it was played by black in the Ruy Lopez, so this trap is also interesting for players that doesn't play 1. e4 with white or the French Defence with black. } 1. e4 e6 { The starting position of the French Defence. } 2. d4 d5 3. e5 { This is known as the advance variation of the French. } 3... c5 { [%cal Rc5d4] } 4. c3 cxd4 { this is a little bit premature. } ( 4... Nc6 { was blacks main move in the position. } ) 5. cxd4 Bb4+ 6. Nc3 Nc6 7. Nf3 Nge7 8. Bd3 O-O $4 { Can you belive it? This is the most played move in this positionon on Lichess and was reached over 3.200 times. But it is actually a really big blunder that is losing the game immediately! } ( 8... Nf5 { is considered to be the main move in this position. Game could continue with the moves } 9. a3 Bxc3+ 10. bxc3 Qc7 11. O-O Na5 { threatening to bring the knight to c4, getting a nice outpost. [%cal Ra5c4] } 12. Bd2 Bd7 13. Re1 Nc4 { as in the game Seresin (2265) vs. Thorfinnsson (2461) played in 2017. Here white should play Qc2 to remain with a slight advantage, but instead he played } 14. Bxf5 ( 14. Qc2 ) 14... exf5 { with a roughly equal position. Black got an isolated pawn on the d file and doubled pawns on the f file, but he got a strong outpost on c4 and blacks pawn on c3 is under pressure because of the semi open c file. [%csl Rd5,Rf5,Rf7,Gc4,Rc3,Rd2][%cal Ga8c8] } ) 9. Bxh7+ $3 { The greek gift wins the game for white. Funny enough only 900 times white found the winning move in this position, this is only 28%! } 9... Kxh7 ( 9... Kh8 { doesn't help. After } 10. Ng5 { white will bring his queen to the kingside and start a mating attack! For example: [%cal Gd1h5] } ( 10. Bc2 { is also enough for an advantage. } ) 10... g6 ( 10... Nf5 11. Bxf5 exf5 12. Qh5+ Kg8 13. Qh7# ) 11. Qf3 { threatening mate on f6. [%cal Gf3f6] } 11... Nf5 12. Bxg6 Bxc3+ ( 12... Kg7 13. Bxf5 exf5 14. Qh5 { threatening mate on h7. [%cal Gh5h7] } 14... Rh8 15. Qxf7+ Kh6 16. Nf3+ f4 17. Bxf4+ Qg5 18. Bxg5# ) 13. bxc3 fxg6 14. Qh3+ Kg7 15. Qh7# ) 10. Ng5+ Kg6 ( 10... Kg8 { doesn't help because of } 11. Qh5 { [%cal Gh5h7] } 11... Re8 { [%cal Rg8f8] } 12. Qh7+ Kf8 13. Qh8+ Ng8 14. Nh7+ Ke7 15. Bg5+ { [%cal Gg5d8] } 15... Nf6 ( 15... f6 16. Qxg7# ) 16. Qxg7 { [%cal Gg5f6,Gg7f6] } 16... Kd7 17. Nxf6+ Kc7 18. Nxe8+ Qxe8 19. Rd1 { and white got a rook and two pawns for a bishop. He is allready winning. A good plan would be for exmaple to play in Simon Williams style and simply just push the h pawn up the board. [%csl Gh1,Gg2,Gh2,Gc8][%cal Gh4h5,Gh5h6,Gh2h4,Gh1h3,Gh3f3] } ) 11. h4 { a good multipurpose move. White threatens h4-h5 and made room for his rook to come to h3 and swing over to g3. [%cal Gh4h5,Gh1h3,Gh3g3] } 11... Nxd4 { Probably not the best move, but black was allready lost anyway. With this move he hopes to gain some time by distracting whites queen, but white just keeps on attacking and doesn't care for the knight. [%cal Gd1d4] } 12. Qg4 f5 13. h5+ Kh6 14. Nxe6+ g5 ( 14... Kh7 15. Qxg7# ) 15. hxg6# { The en passant move wins the game. Beautiful! } 1-0