- Two pawns of the same side on the same file
- They are not easy to move and cannot easily be both protected, so, one or both may be a weakness (Fischer-Petrosian, Debbage-Lane, Matison-Nimzowitsch, Jepps-Regis)
- However, if the capturing pawn moves towards the centre, as it should, there maybe compensating advantages of central control, a half-open file and perhaps the Bishop pair (Bronstein-Najdorf, Bhend-Hort)
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[Event "Candidates f Fischer-Petrosian +5-1=3"]
[Site "Buenos Aires"]
[Date "1971.10.26"]
[Round "9"]
[White "Fischer, RJ."]
[Black "Petrosian, Tigran Vartanovich"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2760"]
[Annotator "pawns: doubled"]
[PlyCount "91"]
[EventDate "1971.09.30"]
[EventRounds "9"]
[EventCountry "ARG"]
1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. Nf3 Nf6 5. exd5 exd5 6. Bb5 Bg4 7. h3 Bxf3 8. Qxf3 Be7 9. Bg5 a6 10. Bxc6+ bxc6 {[#] The appearance of the doubleton.} 11. O-O O-O 12. Rfe1 h6 13. Bh4 Qd7 14. Re2 {While Black is still getting sorted out, White quietly takes over the e-file.} a5 15. Rae1 Bd8 16. b3 Rb8 17. Na4 Ne4 18. Bxd8 Rbxd8 {[#]} 19. Qf4 {White is threatening an invasion on c5 after f2-f3.} Qd6 20. Qxd6 cxd6 21. c4 {[Just as Black seemed to be patching up his pawns, this comes!]} Nf6 22. Rc1 {[#] Black's pawns are still very wobbly, but it is only through having more active pieces as well that White can show this clearly.} Rb8 (22... dxc4 23. Rxc4 Rc8 24. Rec2) 23. cxd5 cxd5 24. f3 Nh5 25. Rc6 Nf4 26. Rd2 Rfe8 {Counterplay rather than passive defence is a good rule in (rook) endings.} 27. Rxd6 Re1+ 28. Kf2 Rh1 29. Kg3 Nh5+ 30. Kh4 g6 31. Rxd5 Re8 32. Rxa5 {[#] White shows a certain amount of disrespect for the force of the counter- attack.} Ree1 33. Nc3 Nf4 34. Kg4 Ne6 35. Re5 f5+ 36. Kg3 f4+ 37. Kh4 Kh7 38. Ne4 g5+ 39. Kg4 {[#] White has judged things properly: Black has one trick left but White has material to burn.} Ng7 40. Nxg5+ {No more teasing, let's make things clear here.} hxg5 41. Rxe1 Rxe1 42. Kxg5 Ne6+ 43. Kf5 Re2 44. Rxe2 Nxd4+ 45. Ke5 Nxe2 46. a4 1-0
[Event "Thamesdown vs. Exeter"]
[Site "?"]
[Date "1995.??.??"]
[Round "?"]
[White "Debbage, I."]
[Black "Lane, Peter CR"]
[Result "0-1"]
[ECO "C16"]
[Annotator "pawns: doubled"]
[PlyCount "42"]
[EventDate "1995.??.??"]
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 5. a3 Bxc3+ 6. bxc3 b6 7. Qg4 f5 8. Qg3 Ba6 9. Bxa6 Nxa6 10. Qd3 $6 (10. Ne2 $1 Nb8 $5 11. Nf4 Nc6 $1 12. Nxe6 $5 {"Discuss..."}) 10... Nb8 (10... Qa4 {prevents c4} 11. Nf3 Ne7 12. Ng5 Kd7 13. h4 Nb8 14. Rg1 Nbc6 15. g4 Na5 16. Rb1 Nc4 {White's King's-side counterplay is not enough: -+ Atkinson-Cooke 1965}) 11. Ne2 Nc6 12. O-O Na5 13. Nf4 Nc4 14. Qe2 O-O-O 15. Nd3 h6 16. a4 a5 17. Nb2 Qc6 18. Nxc4 Qxc4 19. Qxc4 dxc4 20. f4 $4 Ne7 21. Rf3 Nd5 {[#] Black wins with a Queen's-side advance: the Bishop is very bad and the Knight holds sway on both sides of the board.} 0-1
[Event "Karlsbad-04 International Masters"]
[Site "Karlsbad"]
[Date "1929.08.14"]
[Round "12"]
[White "Matisons, Hermanis"]
[Black "Nimzowitsch, Aron"]
[Result "0-1"]
[ECO "E21"]
[Annotator "pawns: doubled"]
[PlyCount "46"]
[EventDate "1929.07.31"]
[EventRounds "21"]
[EventCountry "GER"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 Bxc3+ 5. bxc3 d6 6. Qc2 Qe7 7. Ba3 c5 8. g3 b6 9. Bg2 Bb7 10. O-O O-O 11. Nh4 Bxg2 12. Kxg2 Qb7+ 13. Kg1 Qa6 14. Qb3 Nc6 15. Rfd1 Na5 {[#]} 16. Qb5 Qxb5 17. cxb5 Nc4 18. Bc1 a6 19. bxa6 Rxa6 20. dxc5 bxc5 21. Ng2 Nd5 22. Rd3 Rfa8 23. e4 Ne5 {[#]} 0-1
[Event "41st E. Devon Open"]
[Site "Exeter"]
[Date "2016.03.05"]
[Round "3"]
[White "Jepps, Gerry N"]
[Black "Regis, David"]
[Result "0-1"]
[ECO "C12"]
[Annotator "Regis,Dave"]
[PlyCount "60"]
[EventDate "2016.03.??"]
[EventRounds "5"]
[EventCountry "ENG"]
1. d4 e6 2. e4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4
g6 9. Bd3 Nxd2 10. Kxd2 c5 11. Bb5+ (11. Nf3 Bd7 (11... Nc6)) (11. h4 Nc6 12.
Nf3 (12. Rh3 Qa5 13. Bxg6 Nxd4) 12... Qa5 13. Rh3 Nxd4) 11... Bd7 12. Bxd7+
Nxd7 13. Ne2 Qc7 (13... Qa5) 14. Rhb1 Rc8 15. Ke1 Nb6 16. Kf1 Nc4 (16... cxd4
17. Qxd4 (17. cxd4 Qxc2 18. Rc1 Qd3)) 17. Rb5 b6 (17... cxd4 18. cxd4 Qd7 19.
a4 a6 20. Rb4 Nd2+ 21. Kg1 Rxc2) 18. Kg1 a6 19. Rbb1 O-O 20. Nf4 Kh7 21. Qe2
cxd4 22. cxd4 Na3 23. Rc1 Qc4 (23... Nxc2 24. Nd3 Nxd4) 24. c3 Nb5 25. Qb2 (25.
Qe3 Nxc3 26. Rc2 Rc7 27. Rac1 Rfc8 28. Rxc3 Qxc3 29. Rxc3 Rxc3 30. Nd3 Rxd3 31.
Qxd3 Rc1+ 32. Qf1 Rxf1+ 33. Kxf1 b5 34. Ke2 a5) 25... Nxc3 26. Qxb6 (26. Rc2
Qxd4) 26... Rc6 (26... g5) 27. Qb7 Rc7 28. Qb6 g5 29. Nd3 Ne2+ 30. Kf1 Nxc1 0-1
[Event "Candidates Tournament"]
[Site "Budapest"]
[Date "1950.04.18"]
[Round "5"]
[White "Bronstein, DI."]
[Black "Najdorf, Miguel"]
[Result "1-0"]
[ECO "E29"]
[Annotator "pawns: doubled"]
[PlyCount "41"]
[EventDate "1950.04.11"]
[EventRounds "18"]
[EventCountry "HUN"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 Nc6 7. Bd3 O-O 8. Ne2 d6 9. e4 Ne8 10. O-O b6 11. f4 Ba6 {[#]} 12. f5 e5 13. f6 Kh8 14. d5 Na5 15. Ng3 gxf6 16. Nf5 Bc8 17. Qh5 Bxf5 18. exf5 Rg8 {[#]} 19. Rf3 Rg7 20. Bh6 Rg8 21. Rh3 1-0
[Event "Zonal Kecskemet"]
[Site "Kecskemet"]
[Date "1964.01.14"]
[Round "3"]
[White "Bhend, Edwin"]
[Black "Hort, Vlastimil"]
[Result "0-1"]
[ECO "B16"]
[Annotator "pawns: doubled"]
[PlyCount "52"]
[EventDate "1964.01.11"]
[EventRounds "15"]
[EventCountry "HUN"]
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 {[#] All a bit early to call - we observe the Pawn differences, but not much else. Black has a doubled Pawn, and and extra open file.} 6. c3 Bf5 7. Nf3 e6 8. Bf4 Bd6 9. Bg3 Qc7 10. Qb3 Nd7 11. Be2 O-O-O 12. Nd2 Nb6 13. a4 a5 14. O-O Rhg8 {[#] Black's Rooks have done their duty in occupying the files: Black executes a simple King's-side attack.} 15. Rfe1 Bxg3 16. hxg3 h5 17. Bf3 Bg4 18. Be2 h4 19. gxh4 {[#] Some brisk tactics finish the job.} Bh3 20. Bf1 Rxg2+ 21. Bxg2 Rg8 22. Kf1 Rxg2 23. Nf3 Qf4 24. Re3 Nd5 25. c4 Nxe3+ 26. Qxe3 Rg1+ 0-1