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Engine vs Engine with a learning twist
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euro_pop_legend
24-May-23, 06:36

Engine vs Engine with a learning twist
I will be getting into this MUCH deeper in time,when future members begin to input their own
ideas,examples,viewpoints and more.For now,let me just give you a "surface"example.

In summary ahead of time,engine analysis can be used to improve your game play and game
strength in multiple ways.And I am writing about not only after a game is finished but LONG
BEFORE ANY game begins with a future opponent!There are many ways to analyze with a program like engine vs engine or you against the engine,engine vs a different or identical engine and setting up or "tweaking" an engine(s)to perform with less strength/more elo strength,less or more
MB hash settings,NNUE on or off and a hundred other factors,which I will not cover yet.

But what about "other"computer analysis for that "twist"learning?
I will dedicate my first deep analysis with computer vs computer with a "goal"in mind.
What goal?To see how a better computer analysis researches an "UNORTHADOX" defense
opening for black!Let me pick a rare gem that has rarely been used in GM level play,but
is occasionally used in some IM play and some club level play.Its simply not the "best"opening
defense for black by stats,but it has been underrated for decades.Part of the "underrated"is because there has not been "enough"analysis done on it and the book lines run out quickly!
This defense does not immediately counterattack the center of the board like other defenses,but again,it has big surprise value...which can lead to a WIN for black!

So...let me introduce you to the:Basman Defense for black:

euro_pop_legend
24-May-23, 08:12

Lets move on....
I have a post on the Basman defense in the club somewhere,you will have to find it.
But my goal is to show some of you that the Basman with proper handling is not as "weak"
as you may believe.I could show you much weaker defenses!But not yet!The Basman can move out of book quickly and produce pawn chain configurations that white is very unfamiliar with!
And yes...that does make a difference!The Basman is famous for that "creepy crawly"pawn advancements on whites Kingside and many times closes "in" on that famous f2 square that some of you know is one of the two weakest squares on the chess board!(I have a post for that as well).
It can also "surprise" whites Knight when it advances to f3 and black moves... g4,with or without blacks h5 backup pawn!

So,let me do an engine vs engine below.But not just any engine!I want to pick a less powerful engine and run it without a book!Ultra strong engines like Komodo/Stockfish and others are rated over 3000.So,even being one pawn down early in the game with a 3000+ ELO monster will just about be a loss for anyone human or silicon if they are down just a pawn!(in theory).
And "some"Basmans permit a pawn loss in the opening for better positional advancements.

So,by using a less rated engine and setting it on less MB and a "human option"...that mimics
you and I playing..well,to "some"extent!

So,this time,let me go with Fritz 5.32.A very old engine that is rated at 2677.Still far below the 3521 Stockfish rating!In the first example,I will NOT be playing the game out till the end.It is not necessary!I want to show you how the game becomes relatively "equal" QUICKY...where many players,even an 1800 rated player could finish the game with pretty much confidence in either possibly winning or drawing with no big threat of disadvantage and losing!

Lets set it up and see how Fritz vs Fritz does against the Basman!!
No book.Hash:256 MB
Time control: 1 hour/0

1.e4,g5
2.d4,h6(a standard second move for black)
3.Nc3,d6
4.Nf3,Bg7
5.Be3,a6
6.Be2,b5
7.h3,b4
8.Na4,e6
9.c3,Bb7
10.Qc2,a5
11.c4,Nf6
12.e5,Nfd7
13.Rd1,dxe5
14.d5,Qe7
15.Nd2

Game so far:



Just a quick few notes here!White does have an edge,but only insignificantly.
By move # 7 whites Knight is attacked by the classic "creepy crawly" b pawn and is either forced to retreat to b1,leaving black with much more initiative or move to a4,which actually leaves his Knight with less point value due to its edge position!The other alternative was
Nd4 which would have lead to blacks pawn attack and capture of the Knight!So,again black has
added some surprise value to the game,already by move #7!

By move #13...with dxe5,Fritz decided to advance,instead of recapture with 14.d5.
The program observed that blacks e5 pawn is supported by his Bishop and Knight and still, leaves black with a wide open diagonal from b7.This is the "trademark"of a traditional Basman defense!The program had decided to potentially weaken blacks e6 square or capture the e6 pawn eventually.Other thoughts were that doubled pawns are many times a weaker structure,especially on the e and d files.In addition,at this juncture,black is a pawn up!

In the diagram you will notice that whites Knight on a4 is still "locked in"and just about useless!
Whites Bishops have more square control than blacks Bishops but that is offset by several of blacks advantages from an additional pawn,potential diagonal attack to whites g2 pawn if opened,Black has much better Knight positional square advantage/maneuverability due to blacks b4 advancement of his "crawly"pawn which is supported by a5.White Rook on d1 is temporarily blocked in and black can still Castle on either the K or Q side and white can only castle on the King side.If i was to continue the game myself,I would prefer the black,but either way,it is kind of an equal game with respect to position and available endgame tactics!

So,that was a quick summary and not the total game.But the point is to show you the potential
of an "unorthodox" opening that can and DOES have surprise value in a game!No,The Basman
will never be the "best"response to 1.e4 like the Sicilian 1...c5 or the Ruy 1...e5.
But being "prepared"for it is one of the keys to becoming a better and more rounded player!
So,will you be "ready" for 1.e4,g5 as white if you expect a Sicilian and get a weird response like 1....g5?Do you know "how"to handle the unusual pawn chain configurations that black will shower you with?Perhaps,but perhaps not!So,using engine analysis against the program or engine vs engine can help you define the unknown and prepare you for it!

Now,you know "why"I have had great success in my blitz attacks using 1....g5!!!
Most of my opponents are never prepared for it!




euro_pop_legend
24-May-23, 10:01

Basman variational example in part...
1.e4,g5
2.d4,h6
3.Nf3,d6
4.Be3,Bg7
5.Nc3,g4



Here is another classic response from black with no delay in the "creepy crawly" by
move #5.This will cause immediate retreat of whites f3 Knight and also leaves future potential for blacks diagonal attack with his Bishop on g7.Many times black is "caught up" in other black tactics and misses a pawn capure on b2 or even a Rook capture on a1.In any case,blacks g7 pawn has more square control covering the center of the board with "backup" defense of its g4 pawn(B on c8 OR another black pawn advancement with h5,when needed).

So,do not always believe in the "stats"!Those are stats without thousands of games analyzed
or specific positional setups that you can accomplish with a program and use against the
unwary in some future game.Do I recommend that players south of say,2000 in rating study the
Basman?Well,not yet!!!Getting a handle on more solid opening defenses is key,as I have described in other posts.But keeping irregular defenses and unorthodox defenses on the
"backburner"is a good idea later on,once you get closer to mastering the other parts in chess theory,light and dark square control,piece value changes per position and much more!
euro_pop_legend
24-May-23, 10:24

Deleted by euro_pop_legend on 24-May-23, 10:29.
euro_pop_legend
24-May-23, 10:29

Also note in the above diagram how much closer blacks g4 pawn is getting to whites famous weak square....f2!Why is both f2 square and f7 square...the "weakest squares"on the
chessboard?Do you know?Well,that report of mine is in another post and not designed to be
told in any detail here!Read up on it...and learn!

I have many more future examples of computer analysis coming,including which variations of'"mainstream"openings and opening defenses make it better than others.But I have always
had a liking for offshoot and irregular openings that have very good potential at both drawing and winning..that is,if you know how to proceed and have a bit of faith in using them!
Even the reverse Basman....the Sokolsky 1.b4 has,for decades been considered one of the lesser know or even worse openings for white.The Grob is another example! 1.g4
But both postal players and club players have dedicated themselves to using the Grob/Basman perpetually for decades.The Grob now has many theoretical opening follow through
lines and subvariations to success for white!!!!The "key"is finding out which lines!!!!!!!!!!!!!!!
How do we do that?By using a computer program like Shredder,Fritz and later on like Komodo
or Stockfish!Getting a fractional pawn value assessment in the computer window as you advance your moves,tells much!See a sudden spike in pawn value?Then back up the move and start another move,until you see near a 0.0 or just a slight edge + or - on each side.Make a note of it and place the game in your files for future reference!
euro_pop_legend
24-May-23, 10:37

Correction from above:

"In any case,blacks g7 pawn has more square control"

I meant to say blacks g7 Bishop not his pawn.A typo!



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