Answers.Body: <p>Is it this line in the Advance Caro-Kann of which you are thinking?</p>
  
  <pre><code>[FEN ""]
  1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6
  5. g4 Bg6 6. Nge2 c5 7. h4 cxd4 8. Nxd4 h5
  9. f4 hxg4 10. Bb5+ Nd7 11. f5 Rxh4 12. Rf1 exf5
  13. e6 fxe6 14. Nxe6 Qe7 15. Qe2 Rh2 16. Nc7+ Kd8
  17. Qxe7+ Bxe7 18. Bf4 Rxc2 19. Nxa8 Bh4+ 20. Kd1 Rxb2
  </code></pre>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-25T06:29:09.637Z
Answers.Text: Can you say something about the claim that "one of the sides was proven to be much better"?
Answers.UserDisplayName: user21820
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-25T07:00:00.157Z
Answers.Text: My book on the advanced Caro-Kann "Beating the Caro-Kann" by Kotronias (50 pence in a second hand book shop about 5 years ago!) implies white is better. Stockfish suggests white is about a pawn better. I am not a good enough chess player to evaluate such a mad position by myself - the complete "irrationality" and difficulty of evaluation of these lines is one of the reasons I moved from this variation a couple of years back to the Panov-Botvinik, which is still aggressive, my style, but comparatively sane. So I will leave this question to someone else.
Answers.UserDisplayName: Ian Bush
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-25T07:11:07.520Z
Answers.Text: Well, I looked at some variant lines using StockFish 10+ on Lichess to depth 18, and it appears that Black does fine with `Bh4+` instead of `Rxc2`, so White is not better. However, I am not good enough to know whether I am missing some critical variation or not.
Answers.UserDisplayName: user21820
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-25T07:46:41.260Z
Answers.Text: Yes - there are improvements earlier for black (like not playing the Caro-Kann ;) ). But this is the variation where back gets five pawns for a rook, and that is what the OP asked
Answers.UserDisplayName: Ian Bush
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-25T08:41:25.620Z
Answers.Text: Hahaha... Well the best lines I could find are even more fascinating. Black can sacrifice a rook for only two pawns! `18. Bf4 Bh4+ 19. Kd1 g3 20. Nxa8 Ngf6 21. Kc1 d4 22. Bxd7 Nxd7 23. Nb5 d3 24. Nd4 Bh5 25. cxd3 Nc5`. It continues `26. Bd2 g2 27. Rg1 Bf2 28. Kc2 Bxd4 29. Bf4 Bxg1 30. Rxg1 Rh3 31. Rxg2 Ne6` and Black recovers the material inbalance and has a better position.
Answers.UserDisplayName: user21820
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-25T08:42:32.900Z
Answers.Text: It does seem that White capturing the rook is a mistake; another variation is `18. Bf4 Bh4+ 19. Kd1 g3 20. Nxa8 Ngf6 21. Bc7+ Kc8 22. Be2 Nc5 23. Rg1 f4 24. Bxf4 d4 25. Nb5 Nd5 26. Nxa7+ Kd7 27. Bd2 Bxc2+ 28. Kxc2 Rxe2 29. Rac1 d3+ 30. Kb1 Ne4 31. Ba5 Bf6 32. Rc4 Nd6 33. Rg4 Rxb2+ 34. Kc1 Rxa2 35. R1xg3 Rxa5 36. Rxd3 Ke6 37. Rb3 Rxa7`. What do you think of these two lines?
Answers.UserDisplayName: user21820
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-24T19:38:30.990Z
Answers.LastActivityDate: 2020-04-24T19:38:30.990Z
Answers.UserDisplayName: Ian Bush
Body: <p>I remember seeing somewhere an opening line, where one side gets rook and the other one 5 pawns, it was pretty sharp. I also remember that it's now considered dubious, because one of the sides was proven to be much better. Unfortunately I don't remember which side was which and also the parent opening or the starting moves. Does this line come to mind to someone? It would be greatly appreciated.</p>
  
Tags: <opening>
Title: Looking for an opening line: a rook vs 5 pawns
ThreadText: # Looking for an opening line: a rook vs 5 pawns
  
  (Asked by: username_0 on 2020-04-24)
  
  I remember seeing somewhere an opening line, where one side gets rook and the other one 5 pawns, it was pretty sharp. I also remember that it's now considered dubious, because one of the sides was proven to be much better. Unfortunately I don't remember which side was which and also the parent opening or the starting moves. Does this line come to mind to someone? It would be greatly appreciated.
  
  **Tags:** opening
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2020-04-24. Score: 10 | Accepted answer
  
  Is it this line in the Advance Caro-Kann of which you are thinking?
  
  ```
  [FEN ""]
  1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6
  5. g4 Bg6 6. Nge2 c5 7. h4 cxd4 8. Nxd4 h5
  9. f4 hxg4 10. Bb5+ Nd7 11. f5 Rxh4 12. Rf1 exf5
  13. e6 fxe6 14. Nxe6 Qe7 15. Qe2 Rh2 16. Nc7+ Kd8
  17. Qxe7+ Bxe7 18. Bf4 Rxc2 19. Nxa8 Bh4+ 20. Kd1 Rxb2
  
  ```
  
  > **Comments:**
  > **username_2**: Can you say something about the claim that "one of the sides was proven to be much better"?  
  > **username_1**: My book on the advanced Caro-Kann "Beating the Caro-Kann" by Kotronias (50 pence in a second hand book shop about 5 years ago!) implies white is better. Stockfish suggests white is about a pawn better. I am not a good enough chess player to evaluate such a mad position by myself - the complete "irrationality" and difficulty of evaluation of these lines is one of the reasons I moved from this variation a couple of years back to the Panov-Botvinik, which is still aggressive, my style, but comparatively sane. So I will leave this question to someone else.  
  > **username_2**: Well, I looked at some variant lines using StockFish 10+ on Lichess to depth 18, and it appears that Black does fine with `Bh4+` instead of `Rxc2`, so White is not better. However, I am not good enough to know whether I am missing some critical variation or not.  
  > **username_1**: Yes - there are improvements earlier for black (like not playing the Caro-Kann ;) ). But this is the variation where back gets five pawns for a rook, and that is what the OP asked  
  > **username_2**: Hahaha... Well the best lines I could find are even more fascinating. Black can sacrifice a rook for only two pawns! `18. Bf4 Bh4+ 19. Kd1 g3 20. Nxa8 Ngf6 21. Kc1 d4 22. Bxd7 Nxd7 23. Nb5 d3 24. Nd4 Bh5 25. cxd3 Nc5`. It continues `26. Bd2 g2 27. Rg1 Bf2 28. Kc2 Bxd4 29. Bf4 Bxg1 30. Rxg1 Rh3 31. Rxg2 Ne6` and Black recovers the material inbalance and has a better position.  
  > **username_2**: It does seem that White capturing the rook is a mistake; another variation is `18. Bf4 Bh4+ 19. Kd1 g3 20. Nxa8 Ngf6 21. Bc7+ Kc8 22. Be2 Nc5 23. Rg1 f4 24. Bxf4 d4 25. Nb5 Nd5 26. Nxa7+ Kd7 27. Bd2 Bxc2+ 28. Kxc2 Rxe2 29. Rac1 d3+ 30. Kb1 Ne4 31. Ba5 Bf6 32. Rc4 Nd6 33. Rg4 Rxb2+ 34. Kc1 Rxa2 35. R1xg3 Rxa5 36. Rxd3 Ke6 37. Rb3 Rxa7`. What do you think of these two lines?  
  
  ---
  
  