Our 64 most memorable blunders

30 d5 game

1. e4 c5 2. b4 b6 3. bxc5 bxc5 4. d4 d5 5. Bb5+ Nd7 6. dxc5?? Qa5+ 7. Nc3 Qxc3+ 8. Kf1 (I played this move in complete tilt.) Qxa1

I went on to draw the game as white but the opening blunders were horrendus

Um mine is kinda boring but I accidentally touched my king instead of my queen in a king and queen vs king and stalemated

Great to see much more traction here than on Substack!

[Event "pan am school: r6 black"]
[Date "2025.09.07"]
[Result "*"]
[Annotator "https://lichess.org/@/kekoukele"]
[Variant "Standard"]
[ECO "C09"]
[Opening "French Defense: Tarrasch Variation, Open System, Main Line"]
[StudyName "Stupid blunders"]
[ChapterName "r6 black"]
[ChapterURL "https://lichess.org/study/fKD6XWE0/Kmqdu5ct"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. dxc5 Bxc5 7. Nb3 Bb6 8. Be2 Nf6 9. O-O O-O 10. c3 Re8 11. Nbd4 Ne4 12. Nc2 a6 13. Be3 Bc7 14. Re1 Bg4 15. Nfd4 Bxe2 16. Qxe2 Qd6 17. Qh5 Rad8 18. Rad1 Ne5 19. Bf4 Qb6 20. Nb4 Qc5 21. Bxe5 Rxe5 22. Qh4 Qd6 23. Nf3 g5 24. Qh3 Qb6 25. Rf1 Ree8 26. Nxd5 Qxb2 27. Rb1 Qxb1 28. Rxb1 Rxd5 29. Re1 Kg7 30. Nd4 Rde5 31. Nf5+ Kh8 32. Rf1 Nd2 33. Ne3 Nxf1 34. Kxf1 Bb6 35. Qh6 Bxe3 36. Qf6+ Kg8 37. fxe3 a5 38. g3 R8e6 39. Qd8+ Kg7 40. h4 g4 41. Qd4 h5 42. Kf2 b6 43. e4 Kh7 44. Ke3 Kg6 45. Kf4 Rxe4+ 46. Qxe4+ Rxe4+ 47. Kxe4 f5+ 48. Ke5 b5 49. Ke6 f4 50. gxf4 Kg7 51. Ke7 g3 52. f5 g2 53. f6+ Kh7?? { I would give three question marks if I could! While being tied for 1st with 5/6 (in an tournament where I would get FM for first...), I got a nice position from the opening, outplayed myself only somehow swindle my way into a completely winning position... only to make the wrong king move. Now white draws by a single tempo. } (53... Kg6 { Hardly deserves an exclam. } 54. f7 g1=Q 55. f8=Q Qc5+ 56. Ke8 Qxf8+ 57. Kxf8 Kf5 58. Ke7 Kg4 59. Kd6 Kxh4 60. Kc5 Kg3 61. Kxb5 h4 62. c4 h3 63. c5 h2 64. c6 h1=Q 65. c7 Qb7+) 54. f7 g1=Q 55. f8=Q Qc5+ 56. Kf7 Qf5+ (56... Qxf8+ 57. Kxf8 Kg6 58. Ke7 Kf5 59. Kd6 Kg4 60. Kc5 Kxh4 61. Kxb5 Kg5 62. c4 h4 63. c5 h3 64. c6 h2 65. c7 h1=Q 66. c8=Q Qb1+) 57. Ke8 Qc8+ 58. Kf7 Qf5+ 59. Ke8 Qc8+ 60. Kf7 Qc4+ 61. Ke8 Qxh4 62. Qf5+ Kh6 63. Qf8+ Kg5 64. Qe7+ Kg4 65. Qe4+ Kh3 66. Qh1+ Kg4 67. Qd1+ Kh3 *

I achieved a better result in another game in the same tournament, however the blunder there haunts me equally, although my opponent probably has even greater nightmares! I don't think there is a "worst" blunder in this one, all of them are terrible!

[Event "pan am school: r8 white"]
[Date "2025.09.07"]
[Result "*"]
[Annotator "https://lichess.org/@/kekoukele"]
[Variant "Standard"]
[ECO "B90"]
[Opening "Sicilian Defense: Najdorf Variation, English Attack"]
[StudyName "Stupid blunders"]
[ChapterName "r8 white"]
[ChapterURL "https://lichess.org/study/fKD6XWE0/g63jrCqa"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. a3 Be7 8. Qe2 Qc7 9. O-O-O b5 10. g4 Bb7 11. Bg2 O-O 12. h4 Nc6 13. g5 Nd7 14. Kb1 Nce5 15. Bc1 Rac8 16. Rh3 Qb6 17. f4 Nc4 18. Na2 Rfe8 19. h5 Bf8 20. Qg4 Nc5 21. f5 exf5 22. exf5 Ne4 23. Qh4?? { After getting a dominant position from the opening, I hang... a discovered attack. I hurts more that I had over an hour on the clock compared to my opponent's 10 minutes, so as long as I didn't blunder the victory was practically assured. } 23... Ned2+ 24. Bxd2 Bxg2 25. Rd3 Be4 26. Bc3 Bxd3 27. cxd3?? { And of course at the end of the combination I hang Nxa3 bxa3 b4. However, luck was on my side that day! } 27... Ne3 28. Rh1 Qc5 29. g6 Be7 30. Qh3 Bf6 31. h6 fxg6 32. fxg6 hxg6 33. Ne6 Qf5 34. h7+ Kh8 35. Qxf5 Nxf5 36. Nf4 Ne7 37. Nb4 Bxc3?? { Any move that attempts to stop the bizarre mating idea wins, but I get my first break! } 38. Nbd5 Bd2 39. Nxe7 Rc1+ 40. Rxc1 Bxc1 41. Nexg6+ Kxh7 42. Kxc1 Kh6 43. Nh4 Kg5 44. Nhg2 Kg4 45. Nd5 Re5 46. Kd2 Kf3 47. Nde3 g5 48. Ne1+ Kg3 49. Ke2 g4 50. d4 Re8 51. d5 Kh2 52. Nd3 g3 53. Nf4 a5? { Although this is the losing move, black had it coming for him, blundering his g-pawn AND trapping his own king to lose the game... } 54. Kf3 Rc8 55. Nf1+ Kg1 56. Nxg3 Rc2 57. Nd3 b4 58. axb4 axb4 59. Nf5 *

Well, this one is the oldest of the bunch. Tied for first in Canada's Youth Championship, achieving a dominant position over my co-leader, and then...

[Event "CYCC U16"]
[Site "Laval CAN"]
[Date "2024.07.11"]
[Round "5.24"]
[White "Joseph, Jonath"]
[Black "Lu, Tony"]
[Result "1-0"]
[WhiteElo "2200"]
[BlackElo "2118"]
[Variant "Standard"]
[ECO "A06"]
[Opening "Nimzo-Larsen Attack: Classical Variation"]
[StudyName "Stupid blunders"]
[ChapterName "Joseph, Jonath - Lu, Tony"]
[ChapterURL "https://lichess.org/study/fKD6XWE0/T5fE5m6X"]
[Annotator "https://lichess.org/@/kekoukele"]

1. Nf3 d5 2. b3 Bg4 3. Bb2 Nf6 4. e3 e6 5. Be2 Nbd7 6. d4 Bd6 7. Ne5 Bxe2 8. Qxe2 c6 9. Nd2 Qc7 10. f4 a5 11. a4 Bb4 12. c3 Be7 13. O-O O-O 14. Rf3 Ne4 15. Nxe4 dxe4 16. Rh3 f5 17. Nxd7 Qxd7 18. g4 e5 19. g5 g6 20. dxe5 Rfd8 21. Qe1 Qd2 22. Rb1 Qc2 23. c4 Rd2 24. e6 { So far, Black has played a very nice game, having domination over the most important file on the board and the 2nd rank. Unfortunately, White only needs one diagonal.... } 24... Rad8?? 25. Rxh7 Qxb2 26. Rxb2 Rd1 27. Rxe7 Rxe1+ 28. Kf2 Rh1 29. Rd7? { Missing black's last hope! } 29... Re8? { I was too disgusted with myself to think about fortresses } (29... Rxd7 30. exd7 Rd1 { [%cal Gb3b4] } 31. b4! { The only winning idea. Ke2 and promoting the pawn also win } (31. Ke2 Rxd7 32. Rd2 Rxd2+ 33. Kxd2 c5 { Would be a draw })) 30. Kg2 { Now it is wraps for black } 30... Re1 31. Rbd2 Rxe3 32. Rxb7 Rd3 33. Rxd3 exd3 34. Rd7 Rxe6 35. Rxd3 c5 36. Rd5 Re2+ 37. Kg1 Re1+ 38. Kf2 Rh1 39. Kg2 Rb1 40. Rxc5 Rb2+ 41. Kg1 Rb1+ 42. Kf2 Rb2+ 43. Ke1 Rb1+ 44. Kd2 Rxb3 45. Rxa5 Rf3 46. Ra7 Rxf4 47. Kd3 Rf1 48. Kd4 Re1 49. Rc7 Ra1 50. Ra7 Re1 51. Ra6 Kf7 52. Rf6+ Kg7 53. a5 Rd1+ 54. Kc5 Rg1 55. h4 Rg4 56. a6 Rg1 57. a7 Ra1 58. Kb6 { 1-0 White wins. } 1-0

hiii

1. e4 c6 2. d3 d5 3. Nf3 g6 4. Nc3 Bg7 5. exd5 cxd5 6. d4 Nc6 7. Bb5 Bg4 8. O-O e6 9. h3 Bxf3 10. Qxf3 Ne7 11. Be3 O-O 12. Ne2 Nf5 13. c3 Qb6 14. Bxc6 bxc6 15. Rab1 Qa6 16. a3 Rab8 17. Ng3 Nxe3 18. fxe3 e5 19. dxe5 Bxe5 20. e4 Bxg3 21. Qxg3 dxe4 22. Qe5 Rbe8 23. Qd4 e3 24. Rbe1 Qb7 25. Rxe3 Rxe3 26. Qxe3 Qxb2 27. Qxa7 Qxc3 28. a4 c5 29. a5 h5 30. a6 Qa5 31. Qb7 c4 32. a7 c3 33. Rxf7 Rxf7 34. a8=Q+ Qxa8 35. Qxa8+ Kg7 36. Qa1 Rc7 37. Qc1 Kh7 38. Qf4 Rd7 39. Qc4 Rd1+ 40. Kh2 Rd7 41. Qxc3 Rf7 42. Qc6 Rf5 43. g4 hxg4 44. hxg4 Rf7 45. Kg3 Kg7 46. g5 Rf5 47. Qd7+ Rf7 48. Qd4+ Kh7 49. Qh4+ Kg8 50. Qh6 Rg7 51. Kf4 Kf7 52. Qh1 Kg8 53. Qd5+ Rf7+ 54. Ke5 Kg7 55. Ke6 Rf5 56. Qxf5?? gxf5 57. Kxf5 Kf7 58. g6+ Kg7 59. Kg5 Kg8 60. Kh6 Kh8 61. g7+ Kg8 62. Kg6 1/2-1/2

   56. Qxf5?? Played with 1:30 on the clock WITH INCREMENT and my opponent with 10 seconds on the clock without increment
       Facing a GM on beserk in 3+2 blitz format
       Did a quick calculation and decided it was winning, completely missed 59. Kg8! which was played by my opponent. I was expecting 59. Kf8??
       I remember this blunder like it was yesterday..

By the way, this would be insanely cool for all of us if you can find time to professionally annotate all our games! @datajunkie

I don't think that was 64 for blunders because it says the most 64 memorable blunders

@Rahsulaimon said ^

30 d5 game

1. e4 c5 2. b4 b6 3. bxc5 bxc5 4. d4 d5 5. Bb5+ Nd7 6. dxc5?? Qa5+ 7. Nc3 Qxc3+ 8. Kf1 (I played this move in complete tilt.) Qxa1

I went on to draw the game as white but the opening blunders were horrendus

Oof. Good fightback to draw!