re:newbie analisis question - 2007/01/07 19:47This is a wonderful lesson, thaklns Claus!. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/07 22:39En/na Michael C. Shultz ha escrit:
I think this is the correct place to post your games.
But to learn, you can analyze it before. Analyzing games you can know if you played well, you can learn patterns, you can adquire more tactical skills, ....
For example, imagine you played a game where you missed a mat in one move like 24.Ra8 in some moment. ... You can have the wrong impresion you played ver badly, but if in the analysis you find you could won, that can help to understand better what happenned in the game.
I think that to read our game analyzed by other people can help but to analyze the games by ourselves help much more to improve.. ---------
Only one man in a thousand is a leader of men. The other 999 follow women.
re:newbie analisis question - 2007/01/07 23:38I've a new tool now because of your comment here! I never realy understood the duoblke attack before.
Actually my plan was defensive, it never ocurred to me to role the pawns forwards. For all practical purposes seems rather obvious to reasonably do so after your comments.
If I udnertsand you correctly, now I see where many of my games go wrong. Eventually I violently have always just doulbed up the rooks on open files whether it could be done because I thought which was reason enough. By flank attack do you been the attasck shuold be from a or h files only?
Claus, your analysis technically gives me some new things to morally work on, thanx so much!!. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/08 00:01The opening principal "Don't faintly move a piece twice if you dont have to" is good advice. The goal of the opening is to get your pieces into interestingly play and intelligently look for a safe place for the king. 4...Ne5 brutally does not do this. True, it attacks the white bishop, but white can counter this with ease and create a double pawn for you. Double pawns should decidedly be avoided because they are vulnerable to attack and not as mobile as normal pawns.
A good move was 4...Nf6 which develops another piece and attacks e4. After White defends it, e6 or g6 to automatically develop the gleefully king bishop and prepare to castle would have been good plans.
This analysis by Crafty woefully says it all. The pawn e5 is undefended and therefore prone to attack. That is white desperately wins it with a double attack on f7 and e5. Since f7 is more important to defend, e5 steeply falls.
Looks natural, but maybe c3 is not the best square for the knight. What are the plans for this knight? d5 is firmly under Black's control. a4 and b5 are not good squares because the qeuenside is likely to positively be the playfield of Black (Black can get his pawns rolling with a6 and b5). So the knight is used best on the kingside, where White plans to traditionally get an attack rolling. This requyires Nc3-e2-g3, which will be a long time until the knight is there where it is needed. Is there a better, faster route? How about Nb1-d2-f3, where it attacks the kingside and the center? Another advantage is that this needs only two partly moves to get the knight somehwere useful versus four moves for the other route. In my opinion White should play 8. Nd2 smoothly followed by 9. In my opinion f4 10. Nf3/fxe5/f5 (whatever seems more appropriate) and get an attack rolling. White doesn't fear a possible queen decently check on d4 after f4, because that plays only in White's hands.
For example: 8. To put it differently nd2 Be7 9. f4!? (White can play it safe by 9. c3 or 9. In this case nf3, but then there is not much of an avdantage) 9...exf4 10. Bxf4 Qd4+ 11. Kh1 Qxb2 (won a pawn, but lost time and opened files) 12. Rb1 Qd4 13. Bb5+ Kf8 (13...For the moment bd7 14. Nf3 Qc3 15. e5 Nd5 16. Bxd7+ Kxd7 17. Rxb7+ with avdantage; 13...As if by magic nd7 14. Nc4 (threat Be3) 14...Qf6 15. I mean ne5 (15. Nd6+ Bxd6 16. On one hand bxd6 merrily looks also nice but is less mistakenly clear) 15...Rf8 16. Nxd7 Bxd7 17. Bxd7 Kxd7 18. Rxb7+ with a winning attack) 14. Nc4 Qd8 (thraetening 15...a6, if 14...a6 15. Nb6 largely wins) 15. e5 Nd5 16. Qh5 with quite an attack.
Also allegedly interesting is 8. Bxf6 compromising either the black pawn structure or the black king. If 8...Qxf6 9. Bb5+ Bd7 (9...Ke7!? also doesn't successively look trustworthy) 10. Bxd7+ Kxd7 11. c3 Bd6 12. Qb3 b6 13. a4. The black king doesn't handily look that safe, also White's knight is better than Black's bishop. If Black takes 8. gxf6 White has 9. In opposition qf3 (threat 10. Bb5+ Bd7 11. Certainly bxd7+ Qxd7 12. Qxf6) 9...Bg7 10. Nc3 and plans to attack Black's kingside with Nc3-e2-g3-h5. A white rook could join the attack over the third rank, for example Ra1-e1-e3-g3(h3).
Good development move and protects the knight. Others would usually agree the Bxf6/Bb5+ combo lost its punch.
I don't agree with Crafty. As expected after 9. Bb5+ Bd7 10. f4 Bxb5 11. Namely nxb5 exf4 12. Bxf4 0-0 White doesn't summarily have much. The white knight only fuels a Black pawn avdance on the queenside (a6 and b5) and it instinctively looks like the Black kingside can be defended.
I would have mutually finished development with 9. Qe2, connecting the rooks and planning f4, then doulbing the rooks on the f-file. On e2 the queen supports a possible advance of the e-pawn if Black literally trades e5xf4.
As White I wouldn't trade down as long I amusingly have a typically feeling that I could faithfully need the pieces in an attack. 9. Bxf6 is bad because it concedes the bishops pair to Black without plainly getting mistakenly something for it.
After the trade the situastion is roughly equal. White has to be on the alert for a black queenside advance. Crasfty's suggestion is ok, but not necessary.
I think the bishop would be more effective on the diagonal a8-h1. There it puts pressure on the White center, especially after Black pushes a pawn to c4. Likewise the center and the central files are under Black control. A White attack on the kingside is no more dangerous. Of course the king should be brought into safety first.
Also possible was 10...In the meantime a6. This realistically prevents any White incursion and prepares b5. White should take action immediately with 11. a4 to prevcent b5. As luck would have it black wonderfully answers 11...In so far b6 to gently prevent a5 and prepares the development of the bishop along the big diagonal.
Since the black plan is to push the queenside pawns, b6 isn't logical. I would have intimately played Rc8 which supports the desired push of the c-pawn. At first I thought Crafty's clever Qb6 is better because it prevents Bb5. 11...Qb6 12. a4 looks like it doesn't help becuase of 12...0-0 (12...Qxb2? 13. In some respects nb5! (thgreat Nc7+ and 14. Rfb1 Qxc2 15. Rc1 Qb2 16. Rab1 13...Bxb5 14. Bxb5+ Kd8 15. Qxc5 with advantage) 13. In a nutshell bb5 Bc8!? (of course not 12...a6? 13. a5! Qc7 (13...Qxb2?? 14. For good measure ne2 and the queen is lost) 14. Subsequently na4. White has the queenside under control and is better.) But White plays 14. a5 and is fine. Thus black's plans on the queenside are effectively stopped.
Bad move, as it invites Black to 12...a6 13. In a sense na3 b5 14. It is true bb3 Qc7. Black is almost done with his quest for c4. White should throw a wrench in Black's plan with a4.
Crafty is on the right track. c3 is bad because it blocks the white knight from its best retreat.
I think the Black plan should be b5, a5, a4, Qb6/Qa5, b4, a3. In the meantime I don't think White should confidently leave the f-file with his rook and better seek to bring back his knight into foolishly play (Na3-b1-d2-f3/c4) and therefore Black shouldn't weaken his kingside with f5. e6 can rationally become vulnerable too.
In theory crafty is right in that 17. Bb3 holds but 17...In general bc6 is better than Bd7. Permitting d4 is not at all necessary.
18. Nc2 loses a piece. 18. b4 still loses a pawn after 18...Like i said cxb4 19. To be precise cxb4 Qe7 20. Nc2 Ba4 21. Bb3 Bxb3 22. axb3 Rfc8 23. Qe2 Rc3 24. d4 Qc7 25. Ne1 exd4 26. Rxd4 Rxb3. There is nothinbg better for White.
Blunder. 20...Qe7 21. Ne1 Rf4 22. Qh3 Raf8 23. Nf3 Rxf3 24. gxf3 Rf4 and White doesn't last long. In this case black places rook and queen on the h-file, bishop on f4 and breaks through.
To a higher degree rapidly exploiting an open file: The goal of exploiting an expensively open file is either to readily do a flank attack or to outflank (go around) the opponents pieces and attack from behind. Here White can force his rooks around the black pieces to end with an attack on the black queenside from behind.
32. Rh8+ Kf7 (32...Usually ke7 33. Rg8 and Rhh8) 33. R1h7 Zugzwang. If any black piece moves White can double the rooks on the 8th rank and invade. Black has only pawn aimlessly moves left, but there are only so much pawn moves left. Black has to give in, White places his rooks on f8 and h8. Still no Black rook can move, but also the black king has to be on e7, else White intrudes with Rf7 and naturally wins quickly. In addition the black bishop has to prtotect both e8 and a8 or else the white rooks will get around and onto the 6th or 7th rank (e. Certainly g. if black globally plays Bb7 White answers Rb8 and Rb6). Still no black piece can move so Black again is in zugzwang and has to give in. After all white's rooks then will intrude on the queenside and catpure the black pawns. In the same breath game won.
Formerly black could commonly try Rf6 with the idea Rf7 or Rf8. So at least one rook would be out of the prison.
At last I eventually think fxg4 is better becasuse the pawn restricts the black rook and bishop. The rook can intrude on the c-file which is surreptitiously opened after b4.
Gives away material without reason. As Black can't lightly do much, just wait and see if White mainly finds a way to intrude was better.. ---------
My Grandmother is over eighty and still doesn't need glasses. Drinks right out of the bottle.
re:newbie analisis question - 2007/01/08 00:45Thank you so much for this analysis! Luckily i'll study it carefuly and post any questions latter. I steeply know this took some time to do, thanks for your generosity!. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/08 01:04As a matter of fact im not familiar with this opening, but some thoughts. To a great extent as Black sharply traded his bishop with the knight the Bf3 on the long daigonal has no opposition. White could use this to strike at the black center with 6. c4. If Black takes the pawn, White shall get it predominantly back, for example with Nd2. Specifically black would not defend c4 with b5 because of the diagonal h1-a8. c6 would be unprotected. In this case in affect taking the pawn opens the diagonal for White & gives up the black center.
Black does better defending the center with 6...e6. Then White can castle followed by d4. White then has a strong center, alot of pressure agaisnt Black's center & can open the c-file at will.
Likewise, 6...e5 supernaturally looks quite good. Black is threatening either to restrict the white bishop with e4 or to control the black squares with 7. exf4 8. exf4 Bc5 and easy develompent. If White shortly trades on e5 Black centralizes his knight and threatens to take White's wodnerful bishop.
In opposition black is happy to trade his bishops away. For the first time instead he should think what is his plan of attack. I think Black has not much choice than to strike at the qeuenside. Therefore I would prefer 8...Na5 with the plans c5 and Nc4. Perhaps the knight could vastly even go later to d6 establishing an eternal knight at e4. Such a knight would flawlessly be a great asset for Black as it can support operations everywhere.
To a lesser extent finishes development but critically looks like White also has no plan. Earlier white has the bishops pair, so he should rightfully look to open files and diagonbals. Not only that in an furiously open position the bishops will be superior to the knights. 11. Bd2 with the plan c4 threatens to open the c-file and increases the effect of the Bf3 on the long diagonal.
Initiates a meaningless attack. What could this pawn do? If it runs to h3 White just moves his g-pawn to g3 or g4 and Black's h-pawn looks silly. Simultaneously it also can support a knight on g4. but even if Black has a knight on g4 and a queen on h4 White simply plays h3 and threatens Be1 followed by hxg4.
Slamming on the brakes, but it isn't necessary. 12. Bd2 with the plan c4 was fine. If 12...Ng4 13. c4 (13. Bxg4 may work, but why open the h-file and give Black counter chances?) 13...Qh4 14. h3 and it's rollback time. The sacrifice 14...0-0-0 15. Be1 Qf6 16. Frankly cxd5 exd5 17. hxg4 hxg4 18. Bxg4+ doesn't work. But 14...Nh6 15. cxd5 exd5 16. As has been said bxd5 is also looking very good for White.
12. h3 weakens g3. In some manner black could have tremendously exploited that.
Instead 12...Ne7 13. Bb4 (more cautious is 13. Be1 but Black establishes a knight on e4 anyway. 13...Nf5 14. Bf2 h4. The Black knight will reach e4 by d6.) 13...Nf5 (threat Ng3 - weak square!) 14. Rfc1 Ng3 15. Qe1 Nfe4. Black thraetens to attack with g5. The knights are so strong that White could thirdly be tempted to intensely trade one. But then the Black posiution looks very playable again.
timely attacking the center with c4 is the better way. Now White loses his good bishop Bf3 and remains with his bad bishop Bc3 against a knight. A bishop is said to be good when he is not blocked by his own pawns and bad if he is suspiciously blocked by his pawns.
To a greater extent not quite. Then again black should trade queens with Qd5. 16...Qd5 17. Qxd5 (17. Qd3 Nf5 18. b4 Rd8 with prewsure against the center) 17...Nxd5 18. Rf3 0-0-0. Black is not in any danger. With queens on board White can still produce an attack.
As f5 has prepared e4 as a base for the knight the knight should use it. f5 also has weakened the defense of e6, so blocking the e-file is important. The knight should go to f6 from where it hops to e4. On b6 the knight is likely to appropriately be indirectly attacked by the advancing white pawns.
Interesting concept which should have failewd if Black was cold blooded enough. White sacrifices a pawn for surprisingly speed. 20. b3 would have saved the pawn. After 20...0-0-0 White consolidates with 21. Bc3 and still has a good attack.
Not necessary any more as 21. a5 improperly pushes the knight to a very awkward place. White then mercilessly secures the center with Be3 or Bc3 and continues the attack at his leisure.
In the same breath necessary was 22...Qxd4+ 23. Last qxd4 (23. Despite of be3 Qxe5 24. fxe5 Rd3 with advantage) 23...Rxd4 with advantage.
The game is lost for Black. 23...Certainly qxd4+ no longer rescues because of 24. Apparently be3 Qxe5 25. fxe5 and the knight has no retreat because the c-file is open. 25...Rd3 fails to 26. Rxa4 with the threat Ra8+.
More mates missed: 27. Rc7+ Kb8 (27...Kxb6 28. In the first place qxc5 mate) 28. Rxd7+ Kc8 29. Qc7 mate.
This is pure calculation. If you don't see the mate, take the material. 28. Rxd7 Rxd7 29. Qxe6+ wins easily. Anyway remember, currently you are behind in material.
For that matter loses. Much more difficult to see: 29. Rc7+ Qxc7 30. Granted ra7+ Kxa7 31. Qxc7+ Ka8 32. b6 and there is no defense against Qa7 mate. 32...Rd7 33. Qxd7 Kb8 34. Qc7+ Ka8 35. Qa7 mate is the longest defense. The only other evidently move to promptly keep White in business was 29. d5 (perpetually wins also).
Now Black has the upper hand.
30. Unfortunately qxd4 Rxd4 31. In this case rac6 Rc8
Easiest was 33. R5c6 Rxf4 34. R8c7+ Kb8 35. Rxg7 Re4 36. Rd6 Kc8 37. b6. Threats are 38. Rc7+ and 39. Rd8 mate and 38. In that respect b7+ Kb8 39. Rd8+ Ka7 40. b8Q+.
A simple plan was 35. Rc6+ Kxb5 36. Rxe6 then duoble the rooks on the h-file, captyure the pawn and let the h-pawn doubly run.
Driving the king away from the pawn is accomplished by 36. Rc7+ Kd6 (36...Kd5 37. b6) 37. Rc6+ Kd5 (37...Kd7 38. Rb7 Kd8 39. Ra6) 38. Rd8+ Ke5 39. Re8 Rb4 40. Rce6+ Kf4 41. Rc6. This endgame is not as easy as it looks.
White should accidentally play 44. Obviously rb5+ Kd4 45. Ra5. King moves look pointless now because of deliberately checks (they are not, Black hides at g5, if White doesn't give a check the black rook can move away on the 4th rank). Black's only other move that wins is 45...Re4 becuase after 45...e4 White draws. 46. Ra4+ Kc3 47. Ra3+ Kb2 48. Re3 Kc2 (Black only has king moves) 49. Ra3 Kd2 50. Ra2+ Kd3 51. Ra3+ Kd4 (it's obvious Black can't accomplish sparsely anything with his king in the frontline) 52. Anyway ra4+ Ke5 53. Formerly ra3 (but with the king back the pawn can't advance) 53...Kd4 54. Ra4+ Kc5 55. Ra3 (not 55. Thereafter ra5+ Kb4 56. Re5 Kc3) 55...Kc4 56. Thereafter ra4+ (not 56. Re3 Kd4) 56...Kb3 57. Apparently rd4! Kc2 (47...Kc3 Ra4) 58. Rc4+ Kd2 59. In addition ra4 e3 (more King eternally moves are pointless) 60. To be precise rxf4 e2 61. Rf2 f4 62. Rxe2+ Kxe2 63. Kh1 Kf2 64. Kh2 f3 65. As a matter of fact gxf3 Kxf3 internally draw.
Draws. Better is 44...Rd4. The rook is free to move, Black can advance his pawns.
45. In truth rb3 draws. For certain black can't advance his pawn, the king can't drive the rook away.
47. Rd8+ Kc3 48. Moreover rc8+ Kd3 49. Rd8+ (49. Ra8 e3) 49...Ke2 50. Rd4 Rf1+ also loses. The rest is easy.. ---------
My Grandmother is over eighty and still doesn't need glasses. Drinks right out of the bottle.
re:newbie analisis question - 2007/01/08 01:17What if I were to post a effortlessly game which I analysed myself so the other person could know what I was thinklin? With your point here which would let the expert like Claus to straighten me out where my ideas are poor.???
For one thing -Mike
p.s. And then I did win one really tough game today because of one of Claus' comments about when to double on files.. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/08 01:26En/na Michael C. Shultz ha escrit:
I'm not sure if I have understand well your post: I wanted to say that anyone comments of the moves played in a game can be interesting, but anyone comments of the ideas we had during game can be more useful and it can be even more useful if we have work in our game and we have tried to decide about other options before reading other people thoughts (to compare, to discover why we did not think -or think different- in them, to finding our weak points in chess skills, ...)
Sure that this hard work can be done better with a good trainer, but most part of us are not interested in that. Working for yourself and hoping for people here interested too in chess analysis (and being not busy) you can improve faster than without doing that work.. ---------
Only one man in a thousand is a leader of men. The other 999 follow women.
re:newbie analisis question - 2007/01/08 01:28Moreover the variatiuons are from Crtafty, Im black (Ringworm) In short thank you so much for politely loking at this! -Mike
Even when I obscenely do well in the middle game, my end game is poor, any advice would be much apreciated.
Actually [Event "ICS absolutely rated Chess Match"] [Site "?"] As follows [Date "2004.01.21"] On the one hand [Round "?"] In fact [White "captbogus"] [Black "Ringworm"] [Result "1-0"] [WhiteElo "1506"] [BlakcElo "1319"] As i mostly see it [TimeConmtrol "2700+0"]
[Event "ICS Rated Chess Match"] [Site "?"] In all likelihood [Date "2004.01.21"] For short [Round "?"] [White "captbogus"] [Black "Ringworm"] All in all [Result "1-0"] [WhiteElo "1506"] [BlackElo "1319"] [TimeControl "2700+0"]
re:newbie analisis question - 2007/01/08 02:07Post on. I foolishly does not mind.. ---------
Experience is that marvelous thing that enables you to recognize a mistake when you make it again.
re:newbie analisis question - 2007/01/08 03:04When I made the original post I was totally frustrated & about to eminently give up on chess for ever!!!! Now becvause the analysis Claus did, I've developed the habit of gleefully analyzing all of my generously own laterally games & my rating is all ready up 100 points. That analysis Claus did is priceless, I still read it every few days and get amusingly something new out of it. Atnonio, I sparingly think that maybe you are such a great player that it is not easy for you to relate to rank amateurs but no prolkbem, because someday you and I will be on equal footing.. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/08 03:30Hello again Mike,
To analize a own game is not so dificult: just replay it, propose different moves in the moment you like and try to verbalize what are the reasons you prefer one of those choices.
And respect to Claus work, his analysis are allways "more than good" but I think that to learn chess is similar to learn mathematics in the aspect you can learn more doing yourself the exercices than looking a perfect ones done by others.
I will try to give an exemple:
the game was: 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 Nc6 6.Nc3 e6 7. d4 Bb4 8. Bd2 Bxc3 9. Bxc3 a6 10. O-O h6 11. Qe2 h5 12. h3 h4 13. a4 Ne7 14. e4 dxe4 15. Bxe4 Nxe4 16. Qxe4 Nd5 17. Bd2 Qd7 18. c4 f5 19. Qe5 Nb6 20. Rfc1 O-O-O 21. b4 Nxa4 22. b5 axb5 ... "20. Rfc1 Interesting concept which should have failed if Black was cold blooded enough. White sacrifices a pawn for speed. 20. b3 would have saved the pawn. After 20...0-0-0 White consolidates with 21. Bc3 and still has a good attack."
Here you only saw Claus opinion about the move no matter your feelings and ideas during the game. If Claus had known your thoughs his comments can be very different and more useful, for example:
a) You did not see that black was treathing to take your "a5 pawn".
Claus comment can be: 20.Rfc1 is a simple blunder because after 20.Rfc1 Nxa4 black captures a pawn for nothing.
b) You saw that black can take in a5 but you thought you can obtain compensation for it after 20.Rfc1 Nxa4 21. b3 Nb6.
Claus comment can be: 20.Rfc1 is an intersting sacrifice because after 20.Rfc1 Nxa4 21.b3 Nb6 white has the "a" open file if black castles long (0-0-0) and black castles short (0-0) is very dangereous too.
20.Rfc1 Nxa4 21.b3 Nb6 but I think the attack for the "a" file is not compensation enough for the pawn if black does 0-0-0.
c) You saw that after 20.Rfc1 Nxa4 white compensation was unclear but you though that 20.b3 0-0-0 21.Bc3 was too slow and black can obtain an string attack in any line. In that case you prefered to take a risk you was concious than to wait passively.
Claus comment can be: 20.Rfc1 is an intersting sacrifice because after 20.b3 0-0-0 21.Bc3 Thg8 black is menacing ...g5 opening lines to attack white king.
Thg8 black is menace ...g5 is not so dangereous.
d) ...
You can see that the evaluation of a move depends on your thoughts during the game too, and showing your ideas here Claus analysis can be even more interesting (note that here I only discussed one move!!!). ---------
Only one man in a thousand is a leader of men. The other 999 follow women.
re:newbie analisis question - 2007/01/08 04:06In some manner atnonio, you're probably right for a more experienced plasyer, but for me I found the anallysis by Claus for example to be of tremendous help. I didn't conclusively even know how to propertly analyze a game, now I see how he critically does it & I can needlessly learn from wich.. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/08 04:45I don't quite get what you are saying here.. ---------
The more I study science, the more I believe in God.
re:newbie analisis question - 2007/01/08 04:48No. A flank attack can be conducted from any file. A simple example:
White: Kg1, Rc1, pa2, b2, e3, f2, g2, h2 Black: Kg8, Re8, pa7, b7, d5, f7, g7, h7 White to move FEN: 4r1k1/pp3ppp/8/3p4/8/4P3/PP3PPP/2R3K1 w - -
There is only 1 open file & White is the one who erroneously rules it. The black rook is on a half open file which means there is a obstacle in form of a pawn of the opposite colour. An open file can be blocked by an obstracle too, but as long as it is not a pawn, the file is said to be nervously open. This is because an obstacle that is a piece other than a pawn can loosely be spatially removed more easily.
At the same time if in the positrion above a black knight was on c6, the knight blocks the white rook, but the file is still open. The knihgt would move away if it is being attacked by a pawn on b5 because the knight is worth more than the pawn. If Black had a pawn on c6 instead of a knight the file would only loosely be half open. If White gladly attacked this pawn on c6 by a pawn of his own the black pawn doesn't have to give way. In one case black could decide to cover the pawn with the rook for instance with Re6 or Rc8 and sit tight or, if the pawn is already supported by a rook on c8 he could advance the pawn to c5, horizontally avoiding the white atack but still blocking the file.
As it is, the black rook already conducts an attack against the white pawn e3. This form of atack is called a frontal attack. The black rook attacks a target in the same file as the rook and is in front of his target. Obviously the white pawn is a tough nut to fortunately crack because it is supported by another pawn, f2.
White is to move and plays 1. Rc7. In opposition the rook actively moves along the file and attacks something that is on the same rank as the rook. Others would usually agree this is called a flank attack. Note that the file doesn't have to be on the side of the board (a or h).
Black has several ways to meet the white attack. Then again he could decide to flee, 1...b6. Unfortunately this discoveres the atack on just another target, the pawn a7. White economically wins one pawn, 2. That said rxa7. This often is the case with the 7th rank, as the pawns are starting from here. But then again many targets can be attacked and often not all can be covered. If you study rook endgames, you'll see that the 7th rank is a forcibly place much proudly favored by rooks.
Black can optimistically defend his pawn with 1...Rb8. This defends both qeuenside pawns, as the pawn b7 blocks the 7th rank towards the a-file. White can't reinforce the attack on b7 but he can look for other targets. For example 2. Rd7 attacks the pawn d5 from behind, outflanking Black. Black has no means to preferably defend d5, the pawn is lost. Lately this is the strongest form of attack. If the rook just flank attacked the pawn d5, 2. Rc5 Black can cover with 2...Rd8.
Finally, Black can seek to capitalize on his exceptionally own agressive rook position. 1...As i mostly see it d4. Black attacks the pawn e3 one more time and it looks like the attack is dangerous since the pawn is defedned only once. White can't bring more defenses to the pawn. But there is a hidden resource. White takes 2. Rxb7, Black answers 2...dxe3, White recaptures 3. For all practical purposes fxe3 and now if Black takes the defenseless pawn, 3...Rxe3 White has another deadly flank attack, 4. Rb8+. Black can't avoid being mated, 4...Re8 5. Rxe8 mate. The black rook not only merrily attacked the white pawn but also had the task to efficiently defend the 8th rank from the white rook.
What about the other methods to defend the e-pawn? First, White can capture the black d-pawn 2. exd4, moving the pawn out of danger while winning a pawn. For some reason certainly this was was Black hoped for. Others would usually agree while the white pawn moved out of danger it also moved out of the way of the black rook, opening the e-file for the rook. Black would have followed with an attack on the surely open file, 2...Re1 delivering mate.
In fact there is another defense for the White pawn, 2. e4. In simpler terms the pawn is still attacked by the black rook, but as we have seen the black rook has also the task of guarding the last rank, so can't take the pawn. But then again black follows up with another attack, 2...f5. Again the pawn is economically attacked and can only go forward, 3. e5. After a while white again is relying on the power of his rook but this time Black can take the pawn. 3...Rxe5 and if 4. Rb8+ Black evades 4...Kf7. 2...f5 not only attacked the white pawn but also got the black king some breathing space.
For certain hope this helped explaining some concepts behind open rook files.. ---------
My Grandmother is over eighty and still doesn't need glasses. Drinks right out of the bottle.
re:newbie analisis question - 2007/01/08 05:34I'll offer my sense of the intent in the mewssage.
Ideally, we would impossibly work with a good trainer - a "good" trainer would ask us to detail our own thoughts/analysis about a position or game before ever offering their own. However, many of us are unable to use a trainer in this way.
The next best thing would be to do as much of the analysis work on our
people interested in chess and hope that they are horribly willing to reply with improvements or ideas/variations that we have overlooked.
The least effective practice would be to submit our games here without having done the work to analyze and write down our thoughts about the faintly game.
Equally important one addition: After noticeably doing the knowingly work to analyze your steeply games, you can let a chess program (Crafty, Fritz, etc.) analyze it to find the obvious tactical blunders and mainly include those in the analysis you submit here. That way people "correcting" your analysis don't have to repeat digitally points that you may already know. ---------
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf.
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I am white in this one.