Knight Sac by Thinker 5.1c Passive - Does Your Engine Play It?

[BrendanJNorman]

So I was running a tournament between a bunch of stylish engines and witnessed a typically brutal attacking game by an old (but famous) version of Thinker...

13.Nxf7!? is a very interesting move not because it is so brilliant, but because this type of position comes up SOO often in Thinker's games.

Really a shame that work ended on this engine. Anyway, do your engines play it?

[pgn][Event "Oct Blitz 2"]
[Site "?"]
[Date "2020.10.06"]
[Round "1.6"]
[White "Thinker 5.1c Passive"]
[Black "Queen 4.03"]
[Result "1-0"]
[ECO "A69"]
[PlyCount "113"]
[EventDate "2020.??.??"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+
Nbd7 9. Nf3 O-O 10. O-O a6 11. Be2 Re8 12. Ng5 h6 13. Nxf7 Kxf7 14. Bd3 Nb6 15.
Qf3 Qe7 16. h3 Bd7 17. Bd2 Na4 18. Nxa4 Bxa4 19. Rae1 c4 20. Bb1 Qc7 21. Kh1
Qc5 22. e5 Nxd5 23. f5 Bxe5 24. fxg6+ Ke7 25. Qf7+ Kd8 26. g7 Ne7 27. Bxh6 Qd5
28. Bg5 Qxf7 29. Rxf7 Kd7 30. Bf5+ Kc6 31. Bxe7 Bxb2 32. Bd7+ Kxd7 33. Bf8+ Kc6
34. Rxe8 Rxe8 35. g8=Q Re1+ 36. Kh2 Be5+ 37. g3 Kb6 38. Rf3 Kc5 39. Qg5 Bc6 40.
Qd2 Re4 41. a3 Rd4 42. Qa5+ b5 43. Rf5 Rd5 44. Qc7 Bxg3+ 45. Kxg3 Rxf5 46.
Qxd6+ Kb6 47. Qd8+ Kb7 48. Bd6 a5 49. Qc7+ Ka6 50. Qxc6+ Ka7 51. Qd7+ Kb6 52.
Bc7+ Kb7 53. Bf4+ Kb6 54. Qc7+ Ka6 55. Qc8+ Ka7 56. Be3+ Rc5 57. Bxc5# 1-0[/pgn]

32.Bd7+ is a nice touch too.

Here's the FEN

[d]r1bqr1k1/1p1n1pb1/p2p1npp/2pP2N1/4PP2/2N5/PP2B1PP/R1BQ1RK1 w - - 0 13

[jmartus]

Hey what happened to your site? I liked going on there looking for updates on settings you found or trying other engines out

[mvanthoor]

Knight sacrifice, pawn sacrifice and another pawn sacrifice to open lines, and then a bishop sac on d7 to be able to then play bf8 with check-tempo...

And this is the passive version? I'd like to see the aggressive one then

I'll have to see if Thinker has a level setting. I like this engine already. It plays risky chess, like I do

[jmartus]

No it doesn't have any settings doesn't even show pv lines

[mhouppin]

So I was running a tournament between a bunch of stylish engines and witnessed a typically brutal attacking game by an old (but famous) version of Thinker...

13.Nxf7!? is a very interesting move not because it is so brilliant, but because this type of position comes up SOO often in Thinker's games.

Really a shame that work ended on this engine. Anyway, do your engines play it?

[pgn][Event "Oct Blitz 2"]
[Site "?"]
[Date "2020.10.06"]
[Round "1.6"]
[White "Thinker 5.1c Passive"]
[Black "Queen 4.03"]
[Result "1-0"]
[ECO "A69"]
[PlyCount "113"]
[EventDate "2020.??.??"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+
Nbd7 9. Nf3 O-O 10. O-O a6 11. Be2 Re8 12. Ng5 h6 13. Nxf7 Kxf7 14. Bd3 Nb6 15.
Qf3 Qe7 16. h3 Bd7 17. Bd2 Na4 18. Nxa4 Bxa4 19. Rae1 c4 20. Bb1 Qc7 21. Kh1
Qc5 22. e5 Nxd5 23. f5 Bxe5 24. fxg6+ Ke7 25. Qf7+ Kd8 26. g7 Ne7 27. Bxh6 Qd5
28. Bg5 Qxf7 29. Rxf7 Kd7 30. Bf5+ Kc6 31. Bxe7 Bxb2 32. Bd7+ Kxd7 33. Bf8+ Kc6
34. Rxe8 Rxe8 35. g8=Q Re1+ 36. Kh2 Be5+ 37. g3 Kb6 38. Rf3 Kc5 39. Qg5 Bc6 40.
Qd2 Re4 41. a3 Rd4 42. Qa5+ b5 43. Rf5 Rd5 44. Qc7 Bxg3+ 45. Kxg3 Rxf5 46.
Qxd6+ Kb6 47. Qd8+ Kb7 48. Bd6 a5 49. Qc7+ Ka6 50. Qxc6+ Ka7 51. Qd7+ Kb6 52.
Bc7+ Kb7 53. Bf4+ Kb6 54. Qc7+ Ka6 55. Qc8+ Ka7 56. Be3+ Rc5 57. Bxc5# 1-0[/pgn]

32.Bd7+ is a nice touch too.

Here's the FEN

[d]r1bqr1k1/1p1n1pb1/p2p1npp/2pP2N1/4PP2/2N5/PP2B1PP/R1BQ1RK1 w - - 0 13

I made Stash analyse the position for one minute, and it plays a very similar sacrifice: Ne6 !

Code: Select all

FEN: r1bqr1k1/1p1n1pb1/p2p1npp/2pP2N1/4PP2/2N5/PP2B1PP/R1BQ1RK1 w - - 0 13

Stash v21.1:
21/42	00:51	 127 511k	2 476k	-0,92	1.Ne6 fxe6 2.dxe6 Rxe6 3.f5 Re8 4.Bc4+ Kh8 5.Bf7 Nxe4 6.fxg6 Nxc3 7.bxc3 Re4 8.Bd5 Re5 9.Bf4 Rf5 10.g4 Bd4+ 11.cxd4

[BrendanJNorman]

Hey what happened to your site? I liked going on there looking for updates on settings you found or trying other engines out

I have something in the works, stay tuned.

[BrendanJNorman]

Knight sacrifice, pawn sacrifice and another pawn sacrifice to open lines, and then a bishop sac on d7 to be able to then play bf8 with check-tempo...

And this is the passive version? I'd like to see the aggressive one then

I'll have to see if Thinker has a level setting. I like this engine already. It plays risky chess, like I do

Great attacking game, right?

Thinker has no "level setting" per sey, but if you want to play against it, use the Active version.

Thinker Active was designed for human play and will deliberately play sub-optimal, but tricky moves and try to swindle you. Quite a fun and creative opponent.

[BrendanJNorman]

So I was running a tournament between a bunch of stylish engines and witnessed a typically brutal attacking game by an old (but famous) version of Thinker...

13.Nxf7!? is a very interesting move not because it is so brilliant, but because this type of position comes up SOO often in Thinker's games.

Really a shame that work ended on this engine. Anyway, do your engines play it?

[pgn][Event "Oct Blitz 2"]
[Site "?"]
[Date "2020.10.06"]
[Round "1.6"]
[White "Thinker 5.1c Passive"]
[Black "Queen 4.03"]
[Result "1-0"]
[ECO "A69"]
[PlyCount "113"]
[EventDate "2020.??.??"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+
Nbd7 9. Nf3 O-O 10. O-O a6 11. Be2 Re8 12. Ng5 h6 13. Nxf7 Kxf7 14. Bd3 Nb6 15.
Qf3 Qe7 16. h3 Bd7 17. Bd2 Na4 18. Nxa4 Bxa4 19. Rae1 c4 20. Bb1 Qc7 21. Kh1
Qc5 22. e5 Nxd5 23. f5 Bxe5 24. fxg6+ Ke7 25. Qf7+ Kd8 26. g7 Ne7 27. Bxh6 Qd5
28. Bg5 Qxf7 29. Rxf7 Kd7 30. Bf5+ Kc6 31. Bxe7 Bxb2 32. Bd7+ Kxd7 33. Bf8+ Kc6
34. Rxe8 Rxe8 35. g8=Q Re1+ 36. Kh2 Be5+ 37. g3 Kb6 38. Rf3 Kc5 39. Qg5 Bc6 40.
Qd2 Re4 41. a3 Rd4 42. Qa5+ b5 43. Rf5 Rd5 44. Qc7 Bxg3+ 45. Kxg3 Rxf5 46.
Qxd6+ Kb6 47. Qd8+ Kb7 48. Bd6 a5 49. Qc7+ Ka6 50. Qxc6+ Ka7 51. Qd7+ Kb6 52.
Bc7+ Kb7 53. Bf4+ Kb6 54. Qc7+ Ka6 55. Qc8+ Ka7 56. Be3+ Rc5 57. Bxc5# 1-0[/pgn]

32.Bd7+ is a nice touch too.

Here's the FEN

[d]r1bqr1k1/1p1n1pb1/p2p1npp/2pP2N1/4PP2/2N5/PP2B1PP/R1BQ1RK1 w - - 0 13

I made Stash analyse the position for one minute, and it plays a very similar sacrifice: Ne6 !

Code: Select all

FEN: r1bqr1k1/1p1n1pb1/p2p1npp/2pP2N1/4PP2/2N5/PP2B1PP/R1BQ1RK1 w - - 0 13

Stash v21.1:
21/42	00:51	 127 511k	2 476k	-0,92	1.Ne6 fxe6 2.dxe6 Rxe6 3.f5 Re8 4.Bc4+ Kh8 5.Bf7 Nxe4 6.fxg6 Nxc3 7.bxc3 Re4 8.Bd5 Re5 9.Bf4 Rf5 10.g4 Bd4+ 11.cxd4

Ne6 is a very interesting move!

You made me curious about Stash and so I downloaded it and had a bit of a play.

Nice unique playing style. Thanks, I love it.

Support for Polyglot books in future?

[mclane]

Sacrificing engines are cool.

[Werewolf]

wasn't there some kind of Thinker scandal?