opening novelty

[mwyoung]

Okay, it was a trick question. The move 4...e5!! was my own novelty, found at the board, in the Eastern Open (still in progress). Game Barnakov (2270) - Kaufman, Washington D.C. Dec. 29, 2011. I won in 22 moves. An easy sacrifice for a strong engine to find, but no human ever found it before!

Did more research on the above move.

The move 4..e5! has been played at least 5 times before by human players. First time played was in the game.

Thomas Gerert Vs. Bernhard Riepe
27-7-1999 DESC D0016.
Result 0-1

1. d4 d5 2. c4 Nf6 3. Bg5 Ne4 4. Bf4 e5 5. dxe5 Bb4+ 6. Nd2 dxc4 7. Ngf3 c3 8.
bxc3 Bxc3 9. Rc1 Qd5 10. Ng5 Bxd2+ 11. Bxd2 Nxd2 12. Qxd2 Qxd2+ 13. Kxd2 Nc6
14. e3 Bf5 15. Bb5 O-O-O+ 16. Ke2 Nxe5 17. e4 Bg6 18. f4 a6 19. Bxa6 bxa6 20.
fxe5 h6 21. Nf3 Bxe4 22. Rc5 Rd5 23. Rhc1 Rxc5 24. Rxc5 Rd8 25. Ke3 Rd5 26.
Rxd5 Bxd5 27. a3 Bxf3 28. gxf3 Kd7 29. f4 Ke6 30. Ke4 f5+ 31. Kd4 g5 *
0-1

[mwyoung]

Okay, it was a trick question. The move 4...e5!! was my own novelty, found at the board, in the Eastern Open (still in progress). Game Barnakov (2270) - Kaufman, Washington D.C. Dec. 29, 2011. I won in 22 moves. An easy sacrifice for a strong engine to find, but no human ever found it before!

Did more research on the above move.

The move 4..e5! has been played at least 5 times before by human players. First time played was in the game.

Thomas Gerert Vs. Bernhard Riepe
27-7-1999 DESC D0016.
Result 0-1

1. d4 d5 2. c4 Nf6 3. Bg5 Ne4 4. Bf4 e5 5. dxe5 Bb4+ 6. Nd2 dxc4 7. Ngf3 c3 8.
bxc3 Bxc3 9. Rc1 Qd5 10. Ng5 Bxd2+ 11. Bxd2 Nxd2 12. Qxd2 Qxd2+ 13. Kxd2 Nc6
14. e3 Bf5 15. Bb5 O-O-O+ 16. Ke2 Nxe5 17. e4 Bg6 18. f4 a6 19. Bxa6 bxa6 20.
fxe5 h6 21. Nf3 Bxe4 22. Rc5 Rd5 23. Rhc1 Rxc5 24. Rxc5 Rd8 25. Ke3 Rd5 26.
Rxd5 Bxd5 27. a3 Bxf3 28. gxf3 Kd7 29. f4 Ke6 30. Ke4 f5+ 31. Kd4 g5 *
0-1

All 5 of the games with the move 4..e5 were correspondence games. Computers of 1999 find this move with no problem. Larry is the first known player to find this move over the board.


[d]rnbqkb1r/ppp1pppp/8/3p4/2PPnB2/8/PP2PPPP/RN1QKBNR b KQkq - 0 1

Analysis by Fritz 5.32:

4...dxc4 5.Qa4+ Nc6 6.Nf3
= (-0.25) Depth: 3/13 00:00:00 1kN
4...dxc4 5.Qa4+ Nc6 6.Nf3 Be6
= (-0.13) Depth: 4/12 00:00:00 4kN
4...e5
= (-0.16) Depth: 4/15 00:00:00 7kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5 Qh4 6.g3 Bb4+ 7.Bd2 Nxd2 8.Nxd2 Bxd2+
=/+ (-0.28) Depth: 5/20 00:00:00 31kN
4...e5 5.dxe5 Bc5 6.Be3 Bb4+ 7.Bd2
= (-0.19) Depth: 6/25 00:00:00 96kN
4...dxc4
= (-0.22) Depth: 6/25 00:00:00 116kN
4...dxc4 5.Nf3 b5 6.a4 Bd7 7.axb5 Bxb5 8.Nc3
= (-0.03) Depth: 7/25 00:00:00 277kN
4...e5
= (-0.06) Depth: 7/25 00:00:00 322kN
4...e5 5.dxe5 Bc5 6.Qxd5 Qxd5 7.cxd5 Nxf2 8.b4 Nxh1 9.bxc5
=/+ (-0.44) Depth: 7/25 00:00:00 481kN
4...e5 5.dxe5 Bc5 6.Be3 Bxe3 7.fxe3 Qh4+ 8.g3 Nxg3 9.Nf3
=/+ (-0.38) Depth: 8/27 00:00:00 928kN
4...e5 5.dxe5 Bc5 6.Be3 Bxe3 7.fxe3 Qh4+ 8.g3 Nxg3 9.Nf3
= (-0.25) Depth: 9/39 00:00:00 2380kN
4...e5 5.dxe5 Bc5 6.e3 Bb4+ 7.Ke2 Qh4 8.g3 Qh5+ 9.Nf3
=/+ (-0.34) Depth: 10/39 00:00:02 7519kN
4...e5 5.dxe5 Bb4+ 6.Bd2 Nxd2 7.Nxd2 dxc4 8.Ngf3 c3 9.bxc3
= (-0.16) Depth: 11/42 00:00:08 27602kN
4...e5 5.dxe5 Bb4+ 6.Bd2 Nxd2 7.Nxd2 dxc4 8.Ngf3 Nc6 9.Rc1
= (-0.13) Depth: 12/46 00:00:48 164mN

[lkaufman]

Okay, it was a trick question. The move 4...e5!! was my own novelty, found at the board, in the Eastern Open (still in progress). Game Barnakov (2270) - Kaufman, Washington D.C. Dec. 29, 2011. I won in 22 moves. An easy sacrifice for a strong engine to find, but no human ever found it before!

Did more research on the above move.

The move 4..e5! has been played at least 5 times before by human players. First time played was in the game.

Thomas Gerert Vs. Bernhard Riepe
27-7-1999 DESC D0016.
Result 0-1

1. d4 d5 2. c4 Nf6 3. Bg5 Ne4 4. Bf4 e5 5. dxe5 Bb4+ 6. Nd2 dxc4 7. Ngf3 c3 8.
bxc3 Bxc3 9. Rc1 Qd5 10. Ng5 Bxd2+ 11. Bxd2 Nxd2 12. Qxd2 Qxd2+ 13. Kxd2 Nc6
14. e3 Bf5 15. Bb5 O-O-O+ 16. Ke2 Nxe5 17. e4 Bg6 18. f4 a6 19. Bxa6 bxa6 20.
fxe5 h6 21. Nf3 Bxe4 22. Rc5 Rd5 23. Rhc1 Rxc5 24. Rxc5 Rd8 25. Ke3 Rd5 26.
Rxd5 Bxd5 27. a3 Bxf3 28. gxf3 Kd7 29. f4 Ke6 30. Ke4 f5+ 31. Kd4 g5 *
0-1

All 5 of the games with the move 4..e5 were correspondence games. Computers of 1999 find this move with no problem. Larry is the first known player to find this move over the board.


[d]rnbqkb1r/ppp1pppp/8/3p4/2PPnB2/8/PP2PPPP/RN1QKBNR b KQkq - 0 1

Analysis by Fritz 5.32:

4...dxc4 5.Qa4+ Nc6 6.Nf3
= (-0.25) Depth: 3/13 00:00:00 1kN
4...dxc4 5.Qa4+ Nc6 6.Nf3 Be6
= (-0.13) Depth: 4/12 00:00:00 4kN
4...e5
= (-0.16) Depth: 4/15 00:00:00 7kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5 Qh4 6.g3 Bb4+ 7.Bd2 Nxd2 8.Nxd2 Bxd2+
=/+ (-0.28) Depth: 5/20 00:00:00 31kN
4...e5 5.dxe5 Bc5 6.Be3 Bb4+ 7.Bd2
= (-0.19) Depth: 6/25 00:00:00 96kN
4...dxc4
= (-0.22) Depth: 6/25 00:00:00 116kN
4...dxc4 5.Nf3 b5 6.a4 Bd7 7.axb5 Bxb5 8.Nc3
= (-0.03) Depth: 7/25 00:00:00 277kN
4...e5
= (-0.06) Depth: 7/25 00:00:00 322kN
4...e5 5.dxe5 Bc5 6.Qxd5 Qxd5 7.cxd5 Nxf2 8.b4 Nxh1 9.bxc5
=/+ (-0.44) Depth: 7/25 00:00:00 481kN
4...e5 5.dxe5 Bc5 6.Be3 Bxe3 7.fxe3 Qh4+ 8.g3 Nxg3 9.Nf3
=/+ (-0.38) Depth: 8/27 00:00:00 928kN
4...e5 5.dxe5 Bc5 6.Be3 Bxe3 7.fxe3 Qh4+ 8.g3 Nxg3 9.Nf3
= (-0.25) Depth: 9/39 00:00:00 2380kN
4...e5 5.dxe5 Bc5 6.e3 Bb4+ 7.Ke2 Qh4 8.g3 Qh5+ 9.Nf3
=/+ (-0.34) Depth: 10/39 00:00:02 7519kN
4...e5 5.dxe5 Bb4+ 6.Bd2 Nxd2 7.Nxd2 dxc4 8.Ngf3 c3 9.bxc3
= (-0.16) Depth: 11/42 00:00:08 27602kN
4...e5 5.dxe5 Bb4+ 6.Bd2 Nxd2 7.Nxd2 dxc4 8.Ngf3 Nc6 9.Rc1
= (-0.13) Depth: 12/46 00:00:48 164mN

Did any of these correspondence games continue with my choice 5...Bc5 6.e3 Bb4+7.Ke2 Qh4 (!) ? I'd like to know which move was technically the novelty, even counting the correspondence games.

[mwyoung]

Okay, it was a trick question. The move 4...e5!! was my own novelty, found at the board, in the Eastern Open (still in progress). Game Barnakov (2270) - Kaufman, Washington D.C. Dec. 29, 2011. I won in 22 moves. An easy sacrifice for a strong engine to find, but no human ever found it before!

Did more research on the above move.

The move 4..e5! has been played at least 5 times before by human players. First time played was in the game.

Thomas Gerert Vs. Bernhard Riepe
27-7-1999 DESC D0016.
Result 0-1

1. d4 d5 2. c4 Nf6 3. Bg5 Ne4 4. Bf4 e5 5. dxe5 Bb4+ 6. Nd2 dxc4 7. Ngf3 c3 8.
bxc3 Bxc3 9. Rc1 Qd5 10. Ng5 Bxd2+ 11. Bxd2 Nxd2 12. Qxd2 Qxd2+ 13. Kxd2 Nc6
14. e3 Bf5 15. Bb5 O-O-O+ 16. Ke2 Nxe5 17. e4 Bg6 18. f4 a6 19. Bxa6 bxa6 20.
fxe5 h6 21. Nf3 Bxe4 22. Rc5 Rd5 23. Rhc1 Rxc5 24. Rxc5 Rd8 25. Ke3 Rd5 26.
Rxd5 Bxd5 27. a3 Bxf3 28. gxf3 Kd7 29. f4 Ke6 30. Ke4 f5+ 31. Kd4 g5 *
0-1

All 5 of the games with the move 4..e5 were correspondence games. Computers of 1999 find this move with no problem. Larry is the first known player to find this move over the board.


[d]rnbqkb1r/ppp1pppp/8/3p4/2PPnB2/8/PP2PPPP/RN1QKBNR b KQkq - 0 1

Analysis by Fritz 5.32:

4...dxc4 5.Qa4+ Nc6 6.Nf3
= (-0.25) Depth: 3/13 00:00:00 1kN
4...dxc4 5.Qa4+ Nc6 6.Nf3 Be6
= (-0.13) Depth: 4/12 00:00:00 4kN
4...e5
= (-0.16) Depth: 4/15 00:00:00 7kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5
= (-0.19) Depth: 4/18 00:00:00 9kN
4...e5 5.dxe5 Qh4 6.g3 Bb4+ 7.Bd2 Nxd2 8.Nxd2 Bxd2+
=/+ (-0.28) Depth: 5/20 00:00:00 31kN
4...e5 5.dxe5 Bc5 6.Be3 Bb4+ 7.Bd2
= (-0.19) Depth: 6/25 00:00:00 96kN
4...dxc4
= (-0.22) Depth: 6/25 00:00:00 116kN
4...dxc4 5.Nf3 b5 6.a4 Bd7 7.axb5 Bxb5 8.Nc3
= (-0.03) Depth: 7/25 00:00:00 277kN
4...e5
= (-0.06) Depth: 7/25 00:00:00 322kN
4...e5 5.dxe5 Bc5 6.Qxd5 Qxd5 7.cxd5 Nxf2 8.b4 Nxh1 9.bxc5
=/+ (-0.44) Depth: 7/25 00:00:00 481kN
4...e5 5.dxe5 Bc5 6.Be3 Bxe3 7.fxe3 Qh4+ 8.g3 Nxg3 9.Nf3
=/+ (-0.38) Depth: 8/27 00:00:00 928kN
4...e5 5.dxe5 Bc5 6.Be3 Bxe3 7.fxe3 Qh4+ 8.g3 Nxg3 9.Nf3
= (-0.25) Depth: 9/39 00:00:00 2380kN
4...e5 5.dxe5 Bc5 6.e3 Bb4+ 7.Ke2 Qh4 8.g3 Qh5+ 9.Nf3
=/+ (-0.34) Depth: 10/39 00:00:02 7519kN
4...e5 5.dxe5 Bb4+ 6.Bd2 Nxd2 7.Nxd2 dxc4 8.Ngf3 c3 9.bxc3
= (-0.16) Depth: 11/42 00:00:08 27602kN
4...e5 5.dxe5 Bb4+ 6.Bd2 Nxd2 7.Nxd2 dxc4 8.Ngf3 Nc6 9.Rc1
= (-0.13) Depth: 12/46 00:00:48 164mN

Did any of these correspondence games continue with my choice 5...Bc5 6.e3 Bb4+7.Ke2 Qh4 (!) ? I'd like to know which move was technically the novelty, even counting the correspondence games.

Yes one game Larry, game below.

I guess I should credit the only service that was able to find those games. Found with my iPhone 4s.

Apps for iPad and iPhone

ChessBase Online
The whole history of chess in an app: 5 million chess games from 1624 till 2011! And every week new games from world class tournaments are added to it.

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weekly games update: up-to-date material from all important tournaments
searchable by opening position, player, tournament, year
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for every opening position, all the moves and the statistics
professional board graphics in 5 designs
easy move entry
games presented with complete notation



[Event "1-10-2007 LSS CP-2007-P-00042"]
[Site "?"]
[Date "2007.10.01"]
[Round "?"]
[White "Fels, Bernhard"]
[Black "Petters, Paul"]
[Result "0-1"]
[PlyCount "68"]

1. d4 Nf6 2. Bg5 d5 3. c4 Ne4 4. Bf4 e5 5. dxe5 Bc5 6. e3 Bb4+ 7. Ke2 Qh4 8. g3
Qh5+ 9. f3 g5 10. Qxd5 gxf4 11. Qxe4 fxg3 12. e6 Bxe6 13. Nh3 Bd6 14. hxg3 Nd7
15. Nf2 Qa5 16. Bh3 O-O-O 17. Bxe6 fxe6 18. f4 e5 19. Nd3 exf4 20. gxf4 Rhe8
21. Qf3 Nc5 22. Rd1 Qb6 23. b3 Ne4 24. Nb2 Qc6 25. Nd3 Bxf4 26. Qxf4 Rg8 27.
Qf5+ Kb8 28. Qf3 Ng3+ 29. Kf2 Qh6 30. Rg1 Rxd3 31. Rxg3 Rf8 32. Ke2 Rxf3 33.
Rxf3 Qd6 34. c5 Qd8 0-1

Hope this helps.....

[Ron Langeveld]

Okay, it was a trick question. The move 4...e5!! was my own novelty, found at the board, in the Eastern Open (still in progress). Game Barnakov (2270) - Kaufman, Washington D.C. Dec. 29, 2011. I won in 22 moves. An easy sacrifice for a strong engine to find, but no human ever found it before!

4...e5 has been played in this correspondence game from 2008


[Event "corr 40.DFM/V7 Server"]
[Site "www.remoteschach.de"]
[Date "2008.04.28"]
[Round "?"]
[White "Alf, Henning"]
[Black "Mantovanelli, Marco"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "2383"]
[BlackElo "2543"]
[PlyCount "59"]


1. d4 Nf6 2. Bg5 d5 3. c4 Ne4 4. Bf4 e5 5. dxe5 Bb4+ 6. Bd2 dxc4 7. Bxb4 Qxd1+
8. Kxd1 Nxf2+ 9. Ke1 Nxh1 10. g3 Nc6 11. Bc3 h5 12. Bg2 Nxg3 13. Bxc6+ bxc6 14.
hxg3 h4 15. gxh4 Rxh4 16. Nd2 Be6 17. Kf2 Rh1 18. Kg2 Rh4 19. Ngf3 Rg4+ 20. Kf2
c5 21. Rh1 Kd7 22. Ne1 Rb8 23. Ng2 Bd5 24. e4 Bxe4 25. Nxe4 Rxe4 26. Rd1+ Ke6
27. Kf3 Rd4 28. Bxd4 cxd4 29. Ke4 g5 30. Rxd4 1/2-1/2

Since correspondence games nowadays are computer-assisted games, I think it still counts as a novelty for me in human play.

The first part may be true but I don't agree with the second part. A novelty can be played in a correspondence game and in my opinion it also 'counts' as a novelty just as the novelties that players like Anand et al have prepared in advance of their OTB games with their favourite engine. The quality of the novelty could be different but that's another topic altogether.

[lkaufman]

Thanks. So technically, counting correspondence games, my opponent actually played the novelty, as he improved on 9f3 with 9Nf3. Black is still much better though. I guess I'll describe the move as a novelty in over-the-board play.