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Up Topic The Rybka Lounge / Test Positions / 4th move refutation not always played by GM's/IM's/Masters
- - By MrKris (***) Date 2020-01-13 00:27
1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5? *
rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4

ChessTempo.com
   both 2200+           all games
       games max.            games max.
4.d3   322   2775            848   ""
4.Nc3   23   2560            209
4.Qe2   11   2637             36
4.c3     4   2622             12
4.O-O    1   2210             25   ""
        (0)           4.Nxe5!   25** 2418  wh.78% ==8% bk.16%
                      9 various other 4.__ 3 to 1 game each, 1140 total


ChessTempo's game list, on page under its board, shows games with the exact move order, the next move, althernatives list, to the right of the board, includes transpositions.

The remaining 1034, 1140-25 are mostly 1.e4 e5 2.Bc4 Bc5 3.[4. move shown not Nxe5] Nf6 4.Nf3, with the 4. move not Nf3 but transposing.

--The result is it seems that there is a huge number of games without the correct 4.Nxe5, but it is mostly this transposition problem.
--But the games list below the board is only the exact move order as entered.

'All games' game list has 106 games with the exact move order * above.

Only **25 with 4.Nxe5!, 81 with a different 4.__ : 76% ? error rate.

The 81 include 8 in '2200+', move orders verified at the individual games' link:

1) Tiviakov, Sergei (2622) 1/2-1/2 Short, Nigel D (2682)
2011-05-20  CUCA Open, Luanda ANG  1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. c3?
2) Sengupta, Deep (2565) 1/2-1/2 Navalgund, Niranjan (2282)
2018-06-30  ch-Commonwealth 2018, New Delhi IND  1. e4 e5 2. Nf3 Bc5 3. Bc4 Nf6 4. c3?
3) Salwe, Georg (2500) 1-0 Berger, Johann (2490)
1907  Karlsbad, Carlsbad it, CZE  1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. Nc3?
4) Simantsev, Mikhail (2488) 1/2-1/2 Onoprijchuk, Boris (2366)
2008-08-17  It (cat.4), Saratov (Russia)  1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. d3?
5) Rizouk, Aimen (2470) 1/2-1/2 Mirzoev, Azer (2545)
2007-10-12  II Patrimon Open, Alcala de Henares ESP  1. e4 e5 2. Bc4 Nf6 3. Nf3 Bc5 4. c3?
6) Cori, Jorge (2418) 1-0 Chueca Forcen, Alberto (2271)
2009-04-12  XXXVI Open, La Roda ESP  1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. Nc3?
7) Ferrera, Benjamin (2230) 1-0 Sieiro Gonzalez, Luis (2390)
1991  Mexico, Mexico  1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. d3?
8) Arino, Franck (2210) 1-0 Dezan, Pierre (2240)
1989  Parijs open I, Paris  1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. O-O?

-All this explains how the incorrect move order, * above, made it into a .bin book I recently made from a .pgn collection, because the .bin process is the same:
1.e4 e5 2.Bc4 Bc5 3.['not Nf3'] Nf6 4.Nf3 -correct-, is the same as:
1.e4 e5 2.Nf3 Nf6 3.Bc4 Bc5? 4.[same as 3.'not Nf3', instead of Nxe5]
-Then too, humans have played the incorrect move order also and missed the refutation 4.Nxe5 as above: 8 times 2200+ and 81 times <2200.

Stockfish @ G/25'+5" and 2 Lc0 @ G/5'+1" [Event "refutation"]
[Site "amdPhIIx6 Sy.6"]
[Date "2020.01.11"]
[Round ""]
[White "Stockfish_20011211c0"]
[Black "Stockfish_20011211c0"]
[Result "1-0"]
[BlackElo "2000"]
[ECO "C42"]
[Opening "Russian Game"]
[Time "13:03:47"]
[Variation "Italian Variation"]
[WhiteElo "2000"]
[TimeControl "1500+5"]
[Termination "normal"]
[PlyCount "120"]
[WhiteType "program"]
[BlackType "program"]

1. e4 {book} e5 {book} 2. Bc4 {book} Nf6 {book} 3. Nf3 {book} Bc5 {book} 4.
Nxe5 {+1.73/31 30} O-O {-1.75/32 76} 5. d4 {+1.56/32 35} Be7 {-1.60/30 16}
6. Qe2 {+1.53/29 28} c6 {-1.66/33 26} 7. Bb3 {+1.62/29 16} d5 {-1.48/30 24}
8. exd5 {+1.72/29 26} cxd5 {-1.40/28 16} 9. O-O {+1.68/29 36} Nc6 {-1.48/28
15} 10. c3 {+1.46/30 31} Re8 {-1.39/28 17} 11. Be3 {+1.60/28 15} a5
{-1.36/29 34} 12. a4 {+1.60/29 49} Bf8 {-1.45/29 31} 13. Nd3 {+1.44/28 22}
Bd6 {-1.42/30 43} 14. h3 {+1.62/28 19} Bf5 {-1.40/31 59} 15. Nd2 {+1.76/30
53} Qc7 {-1.45/31 20} 16. f4 {+1.70/29 13} Nh5 {-1.55/31 25} 17. Rf3
{+1.99/35 70} Be4 {-0.99/29 17} 18. g4 {+1.93/30 11} Bxf3 {-1.41/32 28} 19.
Qxf3 {+1.84/32 21} Rxe3 {-1.75/38 45} 20. Qxe3 {+1.89/32 37} Bxf4 {-1.61/36
17} 21. Qf3 {+1.70/36 24} Bh2+ {-1.80/38 67} 22. Kh1 {+1.77/37 23} Ng3+
{-1.89/36 17} 23. Kg2 {+1.86/35 18} Ne4 {-1.94/37 17} 24. Rd1 {+1.91/35 16}
Nxd2 {-1.66/37 54} 25. Rxd2 {+2.08/33 17} Ne7 {-2.01/35 29} 26. Re2
{+2.22/33 20} Ra6 {-2.00/35 25} 27. h4 {+2.30/35 36} h6 {-2.06/38 123} 28.
g5 {+2.44/32 19} Rb6 {-2.38/36 33} 29. Ba2 {+2.44/35 44} g6 {-2.36/35 17}
30. Kh1 {+2.60/33 32} Bd6 {-2.46/35 36} 31. gxh6 {+2.63/31 16} Nf5
{-2.69/32 28} 32. Kg1 {+2.78/29 17} Qd8 {-2.49/35 69} 33. Qxd5 {+2.66/35
26} Nxh6 {-2.76/32 21} 34. h5 {+2.83/34 27} Kg7 {-2.65/34 25} 35. hxg6
{+2.99/32 17} fxg6 {-2.90/36 45} 36. Kf1 {+2.95/35 41} Qh4 {-2.93/34 15}
37. Bc4 {+2.93/34 18} Rc6 {-2.88/35 45} 38. Re8 {+3.15/34 19} Qh2 {-2.88/34
20} 39. Ne5 {+3.09/32 19} Rb6 {-2.98/35 15} 40. b3 {+3.13/33 23} Qh3+
{-2.96/33 15} 41. Qg2 {+3.23/32 18} Qf5+ {-3.01/33 15} 42. Qf3 {+3.35/33
20} Ng4 {-3.48/38 170} 43. Rg8+ {+3.48/33 26} Kh7 {-3.61/33 16} 44. Qxf5
{+3.59/33 17} gxf5 {-3.72/37 23} 45. Nxg4 {+3.59/35 20} fxg4 {-3.73/36 25}
46. Rxg4 {+3.64/34 20} Rc6 {-3.91/36 50} 47. Ke2 {+3.71/33 14} Be7
{-4.20/32 32} 48. Kd2 {+3.81/34 14} Rd6 {-4.29/31 13} 49. Bd3+ {+4.07/32
25} Kh6 {-4.62/34 50} 50. Be4 {+4.33/32 19} Bg5+ {-4.61/31 17} 51. Kd3
{+4.75/29 15} Kh5 {-4.72/28 7} 52. Rg3 {+5.05/30 25} b6 {-5.29/31 52} 53.
Kc4 {+5.52/29 15} Kh4 {-6.06/28 29} 54. Rg2 {+5.89/29 15} Re6 {-5.53/26 4}
55. Bd5 {+6.08/28 14} Re3 {-6.14/25 11} 56. Rc2 {+6.28/29 14} Bd8 {-6.33/29
12} 57. Kb5 {+6.68/28 17} Kg5 {-6.65/25 6} 58. Bc4 {+7.74/30 23} Rh3
{-6.99/25 4} 59. Rg2+ {+8.05/29 12} Kf5 {-6.87/25 4} 60. Rg8 {+8.33/30 16}
Bc7 {-7.54/26 5 Black resigns} 1-0

[Event "MB2.5,2600.bin Sy.6"]
[Site "i7-4700K/RTX 2060"]
[Date "2020.01.11"]
[Round "11"]
[White "Lc0-.23.1_SVlgt40-1705"]
[Black "Lc0-.23.1_SVt40-1541"]
[Result "1-0"]
[ECO "C42"]
[Opening "Russian Game"]
[Variation "Italian Variation"]
[TimeControl "300+1"]
[Termination "adjudication"]
[PlyCount "126"]
[WhiteType "human"]
[BlackType "human"]

1. e4 {book} e5 {book} 2. Bc4 {book} Nf6 {book} 3. Nf3 {book} Bc5 {book} 4.
Nxe5 {+1.73/13 3.2s} O-O {-1.72/15 3.3s} 5. d4 {+1.76/15 3.9s} Bb6
{-1.78/17 3.5s} 6. Nxf7 {+1.80/16 4.8s} Qe7 {-1.85/19 4.5s} 7. Ne5+
{+1.79/16 3.6s} Kh8 {-1.91/17 3.2s} 8. O-O {+1.87/15 4.3s} d6 {-1.94/17
4.0s} 9. Nf3 {+1.85/15 3.5s} Bg4 {-1.91/17 5.0s} 10. c3 {+1.90/14 5.3s}
Qxe4 {-1.87/19 12s} 11. Nbd2 {+1.90/15 9.2s} Qg6 {-1.86/20 2.2s} 12. Be2
{+1.88/15 4.9s} Nbd7 {-1.80/18 6.3s} 13. Nh4 {+1.89/17 13s} Qh5 {-1.78/21
6.3s} 14. Bxg4 {+1.88/17 2.0s} Nxg4 {-1.81/21 4.2s} 15. h3 {+1.88/16 7.0s}
Qxh4 {-1.80/19 5.8s} 16. Qxg4 {+1.85/17 3.0s} Qxg4 {-1.78/18 4.8s} 17. hxg4
{+1.81/16 4.3s} c5 {-1.77/17 5.8s} 18. dxc5 {+1.81/14 7.6s} Bxc5 {-1.79/17
4.3s} 19. Ne4 {+1.79/14 12s} Ne5 {-1.79/15 11s} 20. Nxc5 {+1.80/13 6.1s}
dxc5 {-1.80/14 3.0s} 21. g5 {+1.84/12 12s} Rf5 {-1.69/15 26s} 22. Rd1
{+1.79/11 16s} Kg8 {-1.67/15 0.47s} 23. b3 {+1.74/11 4.7s} a6 {-1.64/16
7.7s} 24. a4 {+1.66/12 18s} c4 {-1.55/13 15s} 25. b4 {+1.67/12 7.1s} Nd3
{-1.70/12 20s} 26. Be3 {+1.89/9 4.5s} Raf8 {-1.71/11 3.6s} 27. Rf1 {+2.10/9
9.1s} Kf7 {-1.91/11 9.2s} 28. g3 {+2.14/9 4.6s} Kg6 {-1.99/12 11s} 29. Kg2
{+2.14/9 6.9s} Re5 {-2.02/13 5.0s} 30. Ra2 {+2.14/9 14s} Rff5 {-1.94/9
8.8s} 31. a5 {+2.11/8 6.2s} Re6 {-1.85/9 8.1s} 32. Raa1 {+2.10/8 6.7s} Re4
{-1.96/11 4.8s} 33. Rab1 {+2.15/9 4.2s} Rd5 {-1.99/12 9.5s} 34. Rfd1
{+2.24/10 5.3s} Rde5 {-2.08/12 6.7s} 35. Rh1 {+2.19/10 6.2s} Rf5 {-2.09/12
1.1s} 36. Rbf1 {+2.28/11 5.9s} Rf7 {-2.18/11 9.7s} 37. Rh3 {+2.34/10 4.6s}
Rf5 {-2.31/11 9.6s} 38. Rh2 {+2.53/10 6.5s} Ne5 {-2.42/11 6.4s} 39. Rh4
{+2.61/12 5.9s} Rxh4 {-2.45/12 2.1s} 40. gxh4 {+2.58/11 3.8s} Kh5 {-2.47/12
11s} 41. f4 {+2.65/11 6.5s} Nd3 {-2.46/12 1.8s} 42. Kf3 {+2.60/10 18s} Rf7
{-2.46/11 6.1s} 43. Kg3 {+2.62/10 2.8s} g6 {-2.58/11 11s} 44. Bd4 {+2.66/10
3.8s} Rf5 {-2.70/12 5.6s} 45. Rf3 {+2.86/10 5.7s} Rf8 {-2.82/11 5.8s} 46.
Be5 {+3.13/9 6.5s} Rd8 {-3.06/10 7.3s} 47. Re3 {+3.30/9 4.7s} Rd7 {-3.20/10
3.2s} 48. Re4 {+3.61/9 4.2s} Nc1 {-3.48/10 4.4s} 49. Rxc4 {+3.89/9 6.9s}
Rd3+ {-3.59/10 2.3s} 50. Kf2 {+3.81/9 2.5s} Kg4 {-3.72/9 5.2s} 51. Rc7
{+4.16/9 3.6s} Rf3+ {-4.10/9 6.7s} 52. Ke1 {+4.30/9 3.8s} Rd3 {-3.88/8
1.6s} 53. Rxb7 {+4.61/8 9.7s} Kf3 {-4.23/8 4.6s} 54. Rb6 {+5.70/8 1.8s} Nb3
{-4.99/8 4.8s} 55. Rd6 {+8.14/7 3.0s} Rxd6 {-5.75/7 4.3s} 56. Bxd6
{+16.91/7 3.2s} Nxa5 {-4.85/7 1.5s} 57. bxa5 {+20.25/7 3.7s} Ke4 {-4.94/7
4.2s} 58. Kd2 {+32.19/6 5.7s} Kd5 {-5.96/7 2.5s} 59. Bb4 {+34.72/5 2.4s}
Ke4 {-5.86/6 2.0s} 60. f5 {+34.08/5 2.2s} Kxf5 {-5.19/6 2.0s} 61. c4
{+28.25/5 2.0s} Ke6 {-6.27/6 2.4s} 62. Kd3 {+34.46/5 1.9s} Kd7 {-6.37/6
1.8s} 63. Kd4 {+50.72/5 1.8s} Kc6 {-6.15/6 1.8s, White wins by
adjudication} 1-0

[Event "MB2.5,2600.bin Sy.6"]
[Site "i7-4700K/RTX 2060"]
[Date "2020.01.11"]
[Round "11"]
[White "Lc0-.23.1_SVt40-1541"]
[Black "Lc0-.23.1_SVlgt40-1705"]
[Result "1-0"]
[ECO "C42"]
[Opening "Russian Game"]
[Variation "Italian Variation"]
[TimeControl "300+1"]
[Termination "adjudication"]
[PlyCount "66"]
[WhiteType "human"]
[BlackType "human"]

1. e4 {book} e5 {book} 2. Bc4 {book} Nf6 {book} 3. Nf3 {book} Bc5 {book} 4.
Nxe5 {+1.79/16 3.2s} O-O {-1.65/12 3.6s} 5. d4 {+1.79/18 3.5s} Bb6
{-1.72/15 3.8s} 6. Nxf7 {+1.90/19 4.1s} Qe7 {-1.72/16 4.7s} 7. Ne5+
{+1.95/19 3.7s} Kh8 {-1.78/15 3.4s} 8. O-O {+1.99/18 3.9s} d6 {-1.82/14
4.4s} 9. Nf3 {+1.95/18 0.68s} Bg4 {-1.83/14 4.8s} 10. c3 {+1.95/19 0.22s}
Qxe4 {-1.86/15 13s} 11. Bd3 {+1.97/15 34s} Qe8 {-1.90/11 19s} 12. Re1
{+2.06/13 7.3s} Qd7 {-1.90/12 3.3s} 13. h3 {+2.18/13 5.1s} Bh5 {-2.01/11
5.4s} 14. Nbd2 {+2.20/15 3.7s} c5 {-2.14/11 6.8s} 15. dxc5 {+2.26/15 4.3s}
Bxc5 {-2.22/12 6.2s} 16. Ne4 {+2.27/16 5.2s} Nc6 {-2.32/13 10s} 17. Nxc5
{+2.27/16 4.9s} dxc5 {-2.34/13 1.4s} 18. Be2 {+2.29/14 4.4s} Qf5 {-2.36/13
8.7s} 19. Nh4 {+2.33/14 6.5s} Bxe2 {-2.32/14 3.0s} 20. Qxe2 {+2.34/13 7.8s}
Qd5 {-2.20/10 9.4s} 21. Qd1 {+2.35/12 4.0s} Rae8 {-2.35/10 19s} 22. Be3
{+2.54/13 12s} Qc4 {-2.37/10 4.0s} 23. Nf5 {+2.90/12 9.9s} Rd8 {-2.42/10
2.9s} 24. Nd6 {+3.19/12 6.5s} Qh4 {-3.09/10 14s} 25. Bxc5 {+3.39/11 7.4s}
b6 {-3.18/9 2.7s} 26. Ba3 {+3.44/11 5.2s} Ne8 {-3.27/9 8.0s} 27. Re2
{+3.97/10 7.9s} Nxd6 {-4.04/8 13s} 28. Bxd6 {+5.09/9 9.7s} Qf6 {-4.77/8
8.3s} 29. Bxf8 {+6.65/9 13s} Rxd1+ {-5.30/8 3.8s} 30. Rxd1 {+6.14/9 3.7s}
Qxf8 {-5.30/7 4.4s} 31. Rde1 {+7.46/8 5.0s} g5 {-5.85/6 11s} 32. Re8
{+15.00/9 8.6s} Kg7 {-11.13/7 9.3s} 33. Rxf8 {+29.09/8 8.2s} Kxf8 {-20.75/6
7.2s, White wins by adjudication} 1-0
Parent - - By user923005 (****) Date 2020-01-13 21:02 Upvotes 1
That's one of the classic blunders (number 427):
https://drive.google.com/open?id=1B2_eap6AxATZ6HixoXx1mlcrmO62KbT9

rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - acd 36; bm Nxe5; cce 50; ce 129;
pm d3 {57} c3 {3} O-O {3} b4 {2} Nc3 {2} d4 {1} Nxe5 {1}; pv Nxe5 O-O d4 Be7 Qe2 c6 Nd2 d5 exd5 cxd5 Bd3 Re8 f4 Nc6 c3 Be6 O-O Qc8 h3 Bf5 Bxf5 Qxf5 g4 Qc2 Qf3 Rad8 g5 Nd7 Qg2 Nb6 Ndf3 Qxg2+ Kxg2 f6 Nxc6 bxc6 Be3 Bd6 Rae1 fxg5 Ne5 gxf4 Bxf4 c5 dxc5; white_wins 317; black_wins 241; draws 290; id "Classic-Blunders.427";
Parent - - By Uly (Gold) Date 2020-01-14 00:46
Is there a version with the classic blunders as a PNG from the starting position?
Parent - By user923005 (****) Date 2020-01-14 08:12
Sorry, no.
It would.be.possible to construct one using Scid but with 500 positions, that's a lot of work.
Parent - By MrKris (***) Date 2020-01-14 22:05
Thanks for the great 500 classic blunders !!!

r4rk1/p1qbnppp/1pn1p3/2ppP3/P2P4/2PB1N2/2P2PPP/R1BQ1RK1 w - - 0 1


#1:
Stockfish_20011222c0 = instantly
Lc0-23_Ls11.1 (RTX 2060) = 19 seconds
Up Topic The Rybka Lounge / Test Positions / 4th move refutation not always played by GM's/IM's/Masters

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