time again for some human input imho:
Talking about computer plans and 'strategy' :
What engines do *not* have is the subtle strategy of a human;
knowing about the possible fallacies and weaknesses
of his opponent....
Watch here (in horror) the subtle strategy below ; where White (yours truly)
applies a trick against another human, almost equal in (tactical)
strength, but not aware of opening traps, two examples"
(with Black playing the sometimes thought to be most solid,
strategic defence (Caro-Kann) possible against White...
(lol)
[Site "Chess.com"]
[Date "2020.09.30"]
[White "jefk"]
[Black "Dxxxhxxd"]
[Result "1-0"]
[TimeControl "900+10"]
[EndTime "7:04:12 PDT"]
[Termination "jefk won by checkmate"]
1. e4 1... c6 2. Nc3 {[%clk 0:15:10]}
2... d5 {[%clk 0:15:10]} 3. Nf3 {[%clk 0:15:20]} 3... dxe4 {[%clk 0:15:20]} 4.
Nxe4 {[%clk 0:15:30]} 4... Bg4 {[%clk 0:15:30]} 5. h3 {[%clk 0:15:40]} 5... Bh5
{[%clk 0:15:40]} 6. Qe2 {[%clk 0:15:50]} 6... Nd7 {[%clk 0:15:50]} 7. Nd6#
{[%clk 0:16:00]} 1-0
Example 2:
[Site "Chess.com"]
[Date "2020.08.24"]
[White "jefk"]
[Black "jaxxrxk"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo]
[BlackElo "1466"]
[TimeControl "900+10"]
[Termination "jefk won by checkmate"]
1. e4 1... c6 2. Nc3 {[%clk 0:15:10]} 2... d5 {[%clk 0:15:10]}
3. Nf3 {[%clk 0:15:20]} 3... dxe4 {[%clk 0:15:20]} 4.
Nxe4 {[%clk 0:15:30]} 4... Bf5 {[%clk 0:15:30]} 5. Qe2 {[%clk 0:15:40]} 5... Nd7
{[%clk 0:15:40]} 6. Nd6# {[%clk 0:15:50]} 1-0
lol
yes i know, i set a trap, with a suboptimal move (Qe2)
hoping that the opponent will make (fatal) mistake;
in other words 'speculative' play. Neither Lco nor NNue
are doing that; you only can do that with 'high contempt'
(and chess knowledge).
Now you say, you cannot do this against computer programs ???
Yes we can ! Here's an example, accomplished against an engine
on Fics (no NNUE, simple alfa beta), rapid rating 2000+ plays
like a toddler:
[Event "Computer chess game"]
[Site "freechess.org"]
[Date "2020.10.03"]
[White "jefk"]
[Black "SpeckEngine"]
[Result "1-0"]
[ECO "C28"]
[Opening "Vienna"]
[Time "19:03:16"]
[Variation "3.Bc4 Nc6 4.f4"]
[TimeControl "840+1"]
[PlyCount "49"]
[WhiteType "human"]
[BlackType "program"]
[Comment "SpeckEngine checkmated 1-0"]
1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. f4 exf4 5. Nf3 Na5 6. Be2 Nc6 7. d4 Bb4
8. e5 Nd5 9. Bd2 Ne3 10. Bxe3 fxe3 11. d5 Ne7 12. Qd3 O-O 13. h4 Bxc3+ 14.
bxc3 d6 15. c4 Nf5 16. Ng5 h6 17. g4 hxg5 18. gxf5 gxh4 19. O-O-O dxe5 20.
Rdf1 Bd7 21. f6 h3 22. Rhg1 g6 23. Rxg6+ Kh7 24. Rg7+ Kh8 25. Qh7# 1-0
Well that was simple, wasn't it (don't tell me i played lousy; i know
but that was not the point, i'ts the last point that counts...)
As for 'simple' ? well actually not, i just played with intuition
(see PS below). Bottom line, for humans know the playing style of your
opponent, try to exploit weaknesses, and know that chess is a game
(where the opponent can make 'strategic' mistakes); you don't have to
play perfectly dull positional chess (often ending in a draw with strong
opponents) to make a fun game out of it; possibly true at higher levels
as well (Lco and Nnue are still machines, they don't have creativity).
How to build in 'creativity' (exploiting possible mistakes of
the opponent (like eg Carlsen is doing in the endgame even
at GM level) for comps ? It requires another sort of contempt
and some knowledge about the sort of opponent (rating (once
crafty had a feature to know things about the opponent on ICC,
eg human/comp, not sure about rating), playing style, etc).
Will it add rating points ? mwah only for the best (lco of SF,
with such an extra feature); will it solve chess ?
Definitely not (it's a draw!); will it add some more fun
to the game(s)? Yes it will, imho.
best regards
jef
PS simple? well only because looked beyond the horizon (Nnue and lco ofcourse
would be more difficult), and i have some recent experience with the Vienna:
see eg this one :
[Site "Chess.com"]
[Date "2020.09.30"]
[White "jefk"]
[Black "Vexxkoxxj"]
[Result "1-0"]
[ECO "C25"]
[TimeControl "900+10"]
[EndTime "6:35:28 PDT"]
[Termination "jefk won by checkmate"]
1. e4 1... e5 2. Nc3 {[%clk 0:15:10]} 2... Bc5 {[%clk 0:15:10]} 3. Bc4 {[%clk 0:15:20]} 3... h6 {[%clk 0:15:20]} 4. f4 {[%clk 0:15:30]} 4... Nc6 {[%clk 0:15:30]} 5. Nf3 {[%clk 0:15:40]} 5... exf4
{[%clk 0:15:40]} 6. d4 {[%clk 0:15:50]} 6... Bb6 {[%clk 0:15:50]} 7. Bxf4 {[%clk
0:16:00]} 7... d6 {[%clk 0:16:00]} 8. Qd2 {[%clk 0:16:10]} 8... Nf6 {[%clk
0:16:10]} 9. h3 {[%clk 0:16:20]} 9... O-O {[%clk 0:16:20]} 10. O-O-O {[%clk
0:16:30]} 10... Ba5 {[%clk 0:16:30]} 11. Bxh6 {[%clk 0:16:40]} 11... gxh6 {[%clk
0:16:40]} 12. Qxh6 {[%clk 0:16:50]} 12... Nh7 {[%clk 0:16:50]} 13. Nd5 {[%clk
0:17:00]} 13... Be6 {[%clk 0:17:00]} 14. Bd3 {[%clk 0:17:10]} 14... Bxd5 {[%clk
0:17:10]} 15. exd5 {[%clk 0:17:20]} 15... Nb4 {[%clk 0:17:20]} 16. Qxh7# {[%clk
0:17:30]} 1-0
PS2 chessdb.cn now only displaying xianchi apparently ?
ah well. it getting a bit boring nowadays in corresp chess..
