Wednesday 31 July 2013

Programming a Computer for Playing Chess

Programming a Computer for Playing Chess - by Claude Shannon... Claude Elwood Shannon was an American mathematician, electronic engineer, and cryptographer known as "the father of information theory"
download PDF http://www.ascotti.org/programming/c...ng%20chess.pdf

Checkmate: Members of IBM's Deep Blue Team Discuss the World of Computer Chess

Not long ago, the idea of a computer beating a human at chess was the stuff of science fiction. But some of the most creative programmers of the 1980s and 90s were determined to make it a reality. And they did. In two matches that riveted the world, Deep Blue, the IBM supercomputer, took on the brilliant world chess champion Garry Kasparov, and finally the computer won. Check out WSF's fascinating discussion with computer scientist Murray Campbell, and grand master Joel Benjamin, two key members of IBM's team involved in the epic match-up between man and machine.


Tuesday 30 July 2013

Instructive game 10:- Karlsson, Lars–Narciso Dublan, Marc

While studying Nimzowitsch–Larsen Attack (A06) i found this position in a game.
Black just played Nd5 and White answered with Rxe4 , was this move justified .
  After thinking check the game and the analysis below at move 28

A game that I liked (ChessBase 12)
[Event "Montcada op 18th"] [Site "Montcada"] [Date "2010.06.27"] [Round "3"] [White "Karlsson, Lars"] [Black "Narciso Dublan, Marc"] [Result "1-0"] [ECO "A01"] [WhiteElo "2453"] [BlackElo "2535"] [PlyCount "119"] [EventDate "2010.06.25"] [EventType "swiss"] [EventRounds "9"] [EventCountry "ESP"] [Source "ChessBase"] [SourceDate "2010.09.01"] {Houdini 3 Pro x64 (60s): 'A01: Nimzowitsch-Larsen Opening '} 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 Bd6 5. Na3 e4 {Another good answer to the Na3. Planning Bd5} 6. Nc4 Be7 7. f4 Nb4 8. Ne5 O-O 9. a3 Nbd5 10. Be2 d6 11. Ng4 Nxg4 12. Bxg4 Bh4+ 13. g3 Bxg4 ({better} 13... Bf6 14. Bxf6 Nxf6 15. Bxc8 Rxc8 {[%cal Gc7c5,Gd6d5,Gd5d4,Gf8e8]}) 14. Qxg4 Bf6 15. Bxf6 {White has a mate threat} Qxf6 16. Rb1 a5 17. Nh3 (17. Ne2 c6 $11) 17... Nb6 18. f5 d5 19. Nf4 Rfd8 {Black plans d4} 20. O-O d4 (20... Rd6 21. d3 $15) 21. Nh5 Qh6 22. f6 g6 23. Ng7 dxe3 24. Nf5 Qh5 25. Qxh5 gxh5 26. dxe3 Kf8 27. Rf4 {White threatens to win material: Rf4xe4} Nd5 {Black threatens to win material: Nd5xf4} 28. Rxe4 { Sacrifices material} ({Also possible and leads to draw} 28. Rh4 Nxf6 29. Rf1 Ra6 30. Rhf4 Rd2 31. Nh4 Ke7 32. Nf5+ Ke8 33. c4 Rb6 34. Nh6 Ng4 35. Rxe4+ Re6 36. Nxg4 hxg4 37. Rxg4 Rxe3 38. Rg8+ Ke7 39. Rg7 Rxb3 40. Rgxf7+ Kd6 41. R1f6+ Ke5 42. Rf5+ Ke4 43. Rf4+ Ke5) 28... Nc3 {Black threatens to win material: Nc3xe4} 29. Re7 {Praise the rook!} Nxb1 30. Nh6 {White threatens to win material: Nh6xf7} Rd1+ 31. Kg2 Rd2+ 32. Kh3 Ra6 {Black threatens to win material: Ra6xf6} (32... Nxa3 33. Rxf7+ Ke8 34. Re7+ Kd8 35. Nf7+ Kc8 36. Re8+ Kd7 37. Rxa8 $18) (32... Rxc2 {the weaker alternative} 33. Rxf7+ Ke8 34. Re7+ Kd8 35. Nf7+ Kc8 36. Re8+ Kd7 37. Rxa8 $16) 33. Rxf7+ Ke8 34. Re7+ Kf8 35. Rf7+ Ke8 36. Re7+ {Twofold repetition} Kd8 37. Nf7+ Kc8 38. Re8+ Kd7 {Black threatens to win material: Kd7xe8} 39. Re7+ Kc8 40. Re8+ Kd7 41. Re7+ {Twofold repetition. 'the rook is the rook!'} Kc6 42. e4 $2 (42. Ne5+ Kc5 43. b4+ (43. Rxc7+ $143 Kd6 44. Re7 Rf2 (44... Nxa3 $143 45. Nf7+ Kd5 46. c4+ Kc6 47. Ng5 $11) 45. Nc4+ Kc5 46. Rxb7 Nd2 $17) 43... axb4 44. axb4+ Kb5 $11 (44... Kxb4 45. f7 $11) 45. f7 $11) 42... Rf2 {Black threatens to win material: Rf2xf6} ( 42... Nxa3 $142 {Black has a promising position} 43. Ne5+ Kc5 44. Rxc7+ Kd6 $17 ) 43. Ne5+ $15 Kd6 44. Nc4+ Kc5 45. e5 {White has a new strong pawn: f6} (45. Rxc7+ $2 {doesn't work because of} Rc6 46. Rd7 Rcxf6 47. Rd5+ Kc6 48. Rxh5 Kc7 $19) 45... b5 {Black threatens to win material: b5xc4} (45... Kd5 46. Nb2 $15) 46. Nb2 $11 ({Instead of} 46. Rxc7+ Kd4 47. Rd7+ Ke4 $15) 46... Rf5 (46... Rxc2 47. f7 Ra8 48. Re8 Rxe8 49. Nd3+ Kb6 50. fxe8=Q $18) 47. Nd3+ ({Weaker is} 47. Rxc7+ Kd4 48. f7 Re6 49. Rd7+ Ke4 $15) 47... Kd4 48. f7 (48. Rxh7 $2 {is inferior since it leads to} Nxa3 49. Rd7+ Ke3 $19) 48... Nxa3 49. Nf4 Nxc2 ( 49... Rxf7 $1 50. Rxf7 Kxe5 51. Rxc7 a4 $11) 50. e6 $14 {White has a new strong pawn: f7} Ke5 $4 (50... Rxe6 $142 $1 {would save the game} 51. Nxe6+ Kc3 52. Rxc7+ Kxb3 53. Rxc2 Rxf7 54. Nd4+ Kb4 55. Nc6+ Kb3 $16) 51. Rxc7 $18 Ra8 ( 51... Rxf7 {hoping against hope} 52. exf7 Rf6 53. Nxh5 Rxf7 54. Rxf7 Na1 $18) 52. Rc5+ Kd6 53. Rxf5 (53. Rxc2 $6 {is a weaker possibility} Ke7 $11) 53... Ke7 54. Rg5 (54. Nd5+ $142 {keeps an even firmer grip} Kxe6 55. Nc7+ Kxf5 56. Nxa8 Ke4 $18) 54... Rf8 55. Rxb5 Rh8 56. Rb7+ Kf6 57. e7 Kxf7 58. e8=Q+ Kxe8 59. Rb8+ Ke7 60. Rxh8 $18 1-0

Which mobile software is better for Serious Chess Player


Advice if you are a Serious player:

1. Go for Android because iOS and WP file management doesn't provide easy mass storage method to manage PGNs, EBooks, and Engines.

2. The Fritz interface equivalent for Android is called Droidfish. You can load CTG chessbase opening books and navagate opening on the go!

3. For reading PGN games look no other than "Chess PGN Master".

4. For tactics training use iChess because it works Offline + you can load your PGN problems.

5. For general chess learning and playing you download Chess.com.

6. For playing Blitz my favorite interface is ChessOK but it may not appeal to you.

7. Use PlayChess by chessbase for viewing live games. To bypass the password dialog just auto rotate the phone then rotate back.

8. CPU speed of the mobile plays a big factor decision its discussed here
Copied for unknown source

Android app for tactics training

Here's an Android free app with over 15,000 tactics puzzles and 6 levels of difficulty:

1-IdeaTactics
This application needs internet connection, without an internet connection the app doesn't work because all problems are on internet and are downloaded one at a time.

2-iChess
This application don't needs internet connection it works off-line.

not free but very very cheep

Houdini Chess Program Crushed!!

Houdini Chess Program Crushed!! - Using The A.R.B Chess System , A.R.B. = Anthony R. Brown . He has his own way of beating chess programs. His video explains it.

How to play the System... from the Youtube video and Talkchess... here is the basic idea....

(1) The Main idea of the System is to Cramp your Opponents Position! Drive them back
and limit their Opportunities!
The System came about because of the Growing Strength of Chess Computers!
Now the Best in 2013 are Rated at 3000+ ELO Stronger than any Human in history!
the System works because the Chess Game Tree has not been Solved?

(2) The Pawns are the Soul of Chess! By the famous François-André Danican Philidor
[link to wikipedia removed]
and Never! more so than with (A.R.B.C.S)

(3) The Majoroty [sic] of Blacks Pawns are developed before the Pieces one square third
rank.

(4) The Knights are developed on the Centre squares second rank and act as
Guardians to the Pawn structure...and only as Attack Pieces if the reason is Good.

(5) The Bishops are developed on the diagonal second rank squares and act as
Skewer's slicing through the Board waiting for Prey!

(6) The Rooks can be used as Sacrificial Pieces because the Pawn structure that
develops weakens them...and of course if the reason is Good any Piece.

(7) The Queen! is the Queen! And can Dominate Closed Positions so look after her!

(8) The King Rules...but only if he has loyal followers...So Protect him well!

(9+) There are many more ideas/rules contained within the System...a Book is needed
to describe everything...maybe that will be next on the list.
A game that I liked (ChessBase 12)
[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Enter New Game"] [Black "?"] [Result "*"] [PlyCount "162"] 1. e4 e6 2. d4 d6 3. Nf3 h6 4. Nc3 a6 5. Bd3 g6 6. O-O b6 7. Be3 Bg7 8. Qd2 Bb7 9. d5 e5 10. a4 Ne7 11. Ne1 g5 12. Bc4 f5 13. f3 f4 14. Bf2 Ng6 15. Qe2 h5 16. a5 Ke7 17. axb6 cxb6 18. Nd3 b5 19. Bb3 Qc8 20. Rad1 g4 21. Kh1 Bf6 22. Rg1 Nd7 23. Rgf1 Qg8 24. Nb4 Kf7 25. Nc6 Nh4 26. Rg1 Re8 27. Qe1 Qg5 28. Nb1 Reg8 29. c4 g3 30. hxg3 fxg3 31. Be3 Qg4 32. Rf1 Nxf3 33. Rxf3 h4 34. Bf2 h3 35. Rxg3 hxg2+ 36. Kxg2 Qh3+ 37. Kf3 Rxg3+ 38. Bxg3 Nc5 39. Qh1 Qxh1+ 40. Rxh1 Rxh1 41. Bc2 Bxc6 42. dxc6 b4 43. c7 Rh8 44. Nd2 Rc8 45. Nb3 Rxc7 46. Ke2 Na4 47. Na5 Nxb2 48. Be1 Nxc4 49. Nxc4 Rxc4 50. Bd3 Rd4 51. Bf2 Rxd3 52. Kxd3 Bd8 53. Kc4 a5 54. Ba7 Bc7 55. Be3 Kg6 56. Kd5 b3 57. Bc1 a4 58. Kc4 Bb6 59. Kb4 Be3 60. Bb2 Bd4 61. Ka3 Bxb2+ 62. Kxa4 Kg5 63. Kxb3 Bd4 64. Kc4 Kf4 65. Kd3 Ba1 66. Ke2 Kxe4 67. Kd2 d5 68. Kc2 d4 69. Kb1 d3 70. Kc1 Ke3 71. Kd1 e4 72. Ke1 Kf3 73. Kd1 e3 74. Kc1 Kf2 75. Kb1 e2 76. Kxa1 d2 77. Kb2 d1=Q 78. Kc3 e1=Q+ 79. Kc4 Qe4+ 80. Kc5 Qda4 81. Kb6 Qec6# *

Tuesday 23 July 2013

Capablanca Articles for the New York Time :- capablanca give new chess attack

Descriptive Notation

Descriptive notation

   There a lot of old classical chess book and articles that is written Descriptive notation which is more more confusing if compared to the Algebraic notation and we shouldn't miss the opportunity of reading these great articles and book . so here is the explaining of the Descriptive Notation.
 
Descriptive notation is a notation for recording chess games, and at one time was the most popular notation in English- and Spanish-speaking countries (Brace 1977:79–80) (Sunnucks 1970:325). It was used in Europe until it was superseded by algebraic notation, introduced by Philipp Stamma in 1737. Algebraic notation is more concise and requires less effort to avoid ambiguity; however much older literature uses descriptive notation. Descriptive notation exists in many language-based variants, the most prevalent being English descriptive notation and Spanish descriptive notation. Howard Staunton, in The Chess-Player's Handbook (1847), uses a cumbersome early version, viz., "P. to K's 4th." (later written P-K4). Notably, in the back of the book he offers brief descriptions of long algebraic notation, stating its adoption by "Alexandre, Jaenisch, the 'Handbuch,' and in Germany generally" (Staunton 1847:500–502), and of ICCF numeric notation, which he calls "Koch's Notation" (Staunton 1847:502–3).
FIDE stopped recognizing descriptive notation in 1981 (Golombek 1977:216).

Contents

Naming the pieces

With the exception of the knight, each piece is abbreviated to the first letter of its name: K for king, Q for queen, R for rook, B for bishop, P for pawn. Knight begins with the same letter as king, so it is abbreviated to either Kt (used in older chess literature) or N. "N" is used in this article. In 1944 Chess Review received many letters debating the change from Kt to N (Lawrence 2009:10).

Naming the board squares

Names of the board squares in descriptive notation
In descriptive notation each square has two names, depending on Black's or White's viewpoint. Each file is given a name corresponding with the piece that occupies the first rank at the start of the game. Thus the queen's file is named "Q" and the king's file is named "K". Since there are two each of the remaining pieces on the first rank, it is necessary to distinguish between them. The pieces on the queen's side of the board (left for White, right for Black) are named with respect to the queen i.e. "queen's rook", "queen's knight" and "queen's bishop" and have the shortened names "QR", "QN" and "QB" respectively. Similarly, the pieces on the king's side (right for White, left for Black) are named with respect to the king i.e. "king's rook", "king's knight" and "king's bishop" and have the shortened names "KR", "KN" and "KB" respectively. The rank is given a number, ranging from 1 to 8, with rank 1 being closest to the player. This method of naming the squares means that each square has one name from White's point of view and another from Black's. For instance, the corner square nearest White's left hand ("a1" in algebraic notation) is called "queen's rook 1" (QR1) by White and "queen's rook 8" (QR8) by Black.

Notation for moves

Each move is indicated by a sequence of characters which is structured based on the move's type. Special indicators are added to the end of the sequence if relevant.
  • Move that is not a capture: A move without capture is represented by the piece's name, a hyphen and the square at the end of the move e.g. N-QB3 (knight to queen's bishop 3), P-QN4 (pawn to queen's knight 4). In some literature, if the move is to the first rank, the "1" is omitted.
  • Capture: A move with capture is represented by the piece's name, a cross (x) and the destination square is identified by the name of the piece captured e.g. QxN (queen captures knight).
  • Castling: The notation 0-0 is used for castling kingside and 0-0-0 for castling queenside. The word "Castles" is sometimes used instead, particularly in older literature.
  • Promotion: Parentheses are used to indicate promotion, with the piece resulting from the promotion in parentheses: P-R8(Q) or after a slash: P-R8/Q. Sometimes an equal sign is used: P-R8=Q.
Typically, the full designation for a piece or a file is shortened to just the last part (indicating a type of piece) whenever this does not produce ambiguity. For example, the move KP-K4 would always be written P-K4 since only one pawn can move to K4 without capturing; the move Q-QB4 would be written Q-B4 whenever Q-KB4 is not a legal move. A pawn capturing a pawn may be shown as PxP if it is the only one possible, or as BPxP if only one of the player's bishop's pawns can capture another pawn, or as QBPxP, or PxQBP, or other such variations.
Disambiguation of pieces using notations like QBP and KR becomes awkward once they have moved away from their starting positions (or starting files, for pawns) and is impossible for pieces created by promotion (such as a second queen). So as an alternative, moves may also be disambiguated by giving the starting position or the location of a capture, delimited with parentheses or a slash, as BxN/QB6, or R(QR3)-Q3. Sometimes only the rank or file is indicated, as R(6)xN.
When listing the moves of a game, first the move number is written, then the move by White followed by the move by Black. If there's no appropriate White move to use (e.g., if the moves are interrupted by commentary) then an ellipsis ... is used in its place.
In Spanish descriptive notation the hyphen is not needed, as the rank serves as separator. So the Sicilian opening (1. P-K4 P-QB4 in English) would be written 1. P4R P4AD. This is also the method used in French and Iberian countries (Hooper & Whyld 1992:106).

Advantages

By identifying each square with reference to the player on move, descriptive notation better reflects the symmetry of the game's starting position ("both players opened with P-QB4 and planned to play B-KN2 as soon as possible"), and because the pieces captured are named, it is easy to skim over a game record and see which ones have been taken at any particular point.
The maxim that "a pawn on the seventh is worth two on the fifth" makes sense from both Black's perspective as well as White's perspective.
English descriptive notation is also particular to chess, not to any other game.

Disadvantages

Confusion can arise because the squares are named differently. Errors may be made when not realising that a move is ambiguous. In comparison, abbreviated algebraic notation represents the same moves with fewer characters, on average, and can avoid confusion since it always represents the same square in the same way.

Example

The Evergreen game (Adolf Anderssen versus Jean Dufresne, Berlin 1852) in English descriptive notation:
White: G. A. Anderssen   Black: J. Dufresne   Opening: Evans Gambit (ECO C52)
1. P-K4 P-K4 2. N-KB3 N-QB3 3. B-B4 B-B4 4. P-QN4 BxNP 5. P-B3 B-R4 6. P-Q4 PxP 7. O-O P-Q6 8. Q-N3 Q-B3 9. P-K5 Q-N3 10. R-K1 KN-K2 11. B-R3 P-N4 12. QxP R-QN1 13. Q-R4 B-N3 14. QN-Q2 B-N2? 15. N-K4 Q-B4? 16. BxQP Q-R4 17. N-B6 ch! PxN 18. PxP R-N1 19. QR-Q1! QxN 20. RxN ch NxR 21. QxP ch! KxQ 22. B-B5 dbl ch K-K1 23. B-Q7 ch K-B1 24. BxN mate
Other examples occur in Lewis Carroll's Through the Looking-Glass.
Source :- From Wikipedia, the free encyclopedia

Thursday 18 July 2013

Great application that makes reading and studying chess eBooks with (Ipad & Iphone) and Android very easy

Now with modern technology there you can read any chess book with mobile without the need of using chess board tap on the moves in your chess book in  (Ipad & Iphone)


 
While in  Android there is application that splites the screen into two , In the left the eBook and in the right chessboard but the problem with application that you should move the pieces manually


Tuesday 16 July 2013

Capablanca Articles for the New York Time :-Capablanca give key to his tactics

Winning Patterns by Grandmaster Igor Smirnov

Winning Patterns
Today we will be discussing typical middlegame plans and patterns. Thus this lesson will contain practical information that you’ll be able to apply in your own games afterwards.
Middlegame
I asked Sagar Shah (my friend and a member of our Remote Chess Academy) to record this special lesson for you. So feel free to grab yourself a cup of tea/coffee and enjoy the video. :)





You can download the games from this lesson in *.pgn format here: LINK
P.S. If you have any questions or comments, please leave them in comments section below in the source page.
Source

UCI and XBoard Engines for Android

[Icon] [TABLET] Chess for Android is a chess application for the Android platform that supports the Universal Chess Interface (UCI) and Chess Engine Communication Protocol (often simply called the XBoard or WinBoard protocol). This feature allows users to import third party chess engines into the application, as further explained at UCI and XBoard Protocols for Android and in Chess for Android Manual. Users can either play an imported engine directly, use infinite analysis to study games, or even run tournaments between engines (see e.g. these tournaments). Engine setup furthermore features pondering, hash tables, multiple threads, endgame tablebases, and opening test suites.
Although Chess for Android runs on any Android device, it is important that the engine has been compiled into proper native code for that device. Currently, the Android platform distinguishes between x86-based devices and ARMv5TE-based devices.

UCI and XBoard Engines (x86)

For x86-based Android devices (such as Google TV), any engine binary that has been compiled for 32-bit x86 Linux will work. This format is widely available for many chess engines.

UCI and XBoard Engines (ARMv5TE)

Engine binaries that run on ARMv5TE-based Android devices (most phones and tablets) are not widespread yet. The entries below, however, list such engines, either as a link to the engine's website or as a direct download of a binary compiled by Aart Bik (for all direct downloads, the engine authors have given kind permissions to post the binaries on this website). [tour3] [tour2] [tour1] Download package with direct downloads on this page, or view tournament results.
Individual engines: Source

Instructive game 9:- Capablanca, Jose–Tartakower, Saviely

A game that I liked (ChessBase 12)
[Event "New York"] [Site "?"] [Date "1924.??.??"] [Round "6"] [White "Capablanca, Jose"] [Black "Tartakower, Saviely"] [Result "*"] [ECO "A85"] [PlyCount "103"] [EventDate "1924.??.??"] [Source "ChessPublishing"] [SourceDate "2002.02.24"] 1. d4 e6 2. Nf3 f5 3. c4 Nf6 4. Bg5 Be7 5. Nc3 O-O {White prepares to trade off Black's king knight or king bishop, both of which are important attacking pieces in this opening.} 6. e3 b6 7. Bd3 Bb7 8. O-O Qe8 {Black plans to attack on the kingside by 9...Qh5 and 10...Ng4.} 9. Qe2 {White prepare to meet 9... Qh5 by 10.e4 when Black's pieces will be embarrassed in the center.} Ne4 10. Bxe7 Nxc3 11. bxc3 Qxe7 12. a4 {Preventing 12...Qa3 and preparing to play on the queenside by 13.Rfb1 and a later a5.} Bxf3 $5 {This is horrible: Black's bishop is his best piece and he voluntarily gives it up. He should play 12... d6 and 13...Nd7 to solidify his position in the center.} 13. Qxf3 Nc6 14. Rfb1 Rae8 15. Qh3 {Preventing Black from freeing himself by 15...e5. Black should now try to get some play on the kingside by 15...g5.} Rf6 16. f4 Na5 17. Qf3 d6 18. Re1 Qd7 19. e4 $1 fxe4 20. Qxe4 g6 21. g3 Kf8 22. Kg2 Rf7 23. h4 d5 $2 ({ A fine defence gives} 23... c5 $1) 24. cxd5 exd5 25. Qxe8+ Qxe8 26. Rxe8+ Kxe8 {We have now reached a classic ending) White has a bishop against a knight and a target on g6. Black struggles to get counterplay, but by giving up material White strengthens his bind until Black finally gives up.} 27. h5 $1 Rf6 {27... gxh5 28.Rh1 Kf8 29.Rxh5 Wins a pawn for White.} (27... gxh5 $2 28. Rh1 { favours White.} Kf8 29. Rxh5) 28. hxg6 hxg6 29. Rh1 {Now each of White's pieces is more active than its Black counterpart.} Kf8 {Black wants to move his rook to the c-file but can't allow a pin by Bb5.} 30. Rh7 {Now White's rook has an ideal position on the seventh rank. Black's king is in a box and will soon become the object of attack by all White's pieces.} Rc6 ({Not} 30... Rf7 $2 31. Bxg6 $1) 31. g4 Nc4 $2 {Black doesn't take on c3 as that would give White connected passed pawns on the kingside. He brings his misplaced knight to the kingside, but the time this takes lets White tighten his bind there.} ({ The surprising} 31... g5 $1 32. fxg5 Rxc3 33. Bf5 Nb3 $1 {saves the game.}) 32. g5 Ne3+ 33. Kf3 Nf5 ({No rescue brings} 33... Nd1 34. Rh6 Kf7 35. f5 $1 Rxc3 36. fxg6+ Kg8 37. Ke2 $1 Nb2 38. Bf5 {(Alekhine).}) 34. Bxf5 gxf5 {White has exchanged his strong bishop for a desicive manoeuvre. 'White has given up his bishop for Black's knight and must now lose his c- pawn, but now his king has a clear path into Black's position by g3-h4-g5-f6.} 35. Kg3 $1 ({The common move in this type of position don't work} 35. Rd7 Rxc3+ 36. Ke2 c6 $11 (36... Ra3 37. Rxd5 Rxa4 38. Rxf5+ Kg7 $14 {[%csl Ra7,Rb6,Rc7,Rf4,Rg5] Slight advantage due to his advance pawns but the material are equal and it will be long time until White promote the pawns}) 37. Rxa7 Rc4 38. Kd3 Rb4 39. Rc7 Rc4 40. Ke3 Kg8 41. Kf3 Rc3+ 42. Ke2 Rc4 43. Ke3 $11) 35... Rxc3+ {Sacrificing two pawns, one of them with a check to create very powerful team of the rock and the king and the pawn creating mate ideas and promotion.} 36. Kh4 Rf3 $2 { Black lacks a serious defence. '36...Rc1 37.Kh5 Rh1+ 38.Kg6 Rxh7 39.Kxh7 c5 40. g6 And White gets a new queen.} ({Another option for Black} 36... Rc1 37. Kh5 ( {Don't work} 37. g6 {because there is a check} Rh1+ 38. Kg5 Rxh7 39. gxh7 Kg7 { Black trades the active White Rock and then takes the advance pawn} 40. Kxf5 c5 {Creating counterplay on the other side of the board, this psition of probably a draw becuase the f-pawn will be promoted and there will be Queen endgame}) 37... c5 ({don't work here} 37... Rh1+ 38. Kg6 {[%cal Rh1h7,Rg6h7,Rg5g6,Rg6g7, Rg7g8]} Rxh7 39. Kxh7 {[%cal Gg5g6,Gg6g8]}) 38. dxc5 (38. Rd7 cxd4 39. Rxd5 Rd1 40. Kg6 d3 41. Kf6 Ke8 42. g6 {[%csl Gd3][%cal Gg6g7,Gg7g8,Gd5d3] Winning}) 38... bxc5 39. Kg6 {[%cal Gg6f6,Gh7h8] Planning checkmate} Rb1 {[%cal Gb1b6, Gb6g6]} 40. a5 {[%csl Gb6] Taking the square a5 from the rock}) (36... a6 $142 $14 {had to be tried to avoid defeat}) 37. g6 $1 $18 Rxf4+ 38. Kg5 Re4 (38... Rxd4 39. Kf6 Ke8 (39... Kg8 40. Rd7 {And Black get mated.}) 40. Rxc7 (40. Rh8+ Kd7 41. g7 Rg4 42. g8=Q Rxg8 43. Rxg8 Kd6 44. Kxf5 Kc5 {White should be winning be it is not so easy because Black will have too many pawns, so White shouldn't harry to promote this pawns.}) 40... Rxa4 41. g7 Rg4 42. Rxa7 {[%cal Gg7g8] White will win easily after that with the Blacks separated pawns}) 39. Kf6 $1 {Capablanca has given two pawns for an attack on the king. 'White doesn't take the f-pawn because it will shield his king from checks on the f-file. The g6 pawn is all he needs to win with his mating battery of king and rook in place. Now the pawn on g6 is extremely strong} Kg8 40. Rg7+ Kh8 $4 { solves nothing} (40... Kf8 41. Rxc7 {[%cal Gc7c8,Gg6g7,Ge4e8,Gc8e8]} Re8 42. Kxf5 {[%cal Gc7a7,Ga7b6,Gb6d5] And White can collect Black pawns easily} a6 $18 ) 41. Rxc7 $18 Re8 42. Kxf5 {White only captures after Black's rook has been reduced to passive defense.} Re4 (42... a6 43. Ra7 a5 $18) 43. Kf6 Rf4+ 44. Ke5 Rg4 45. g7+ $1 {it's all over} (45. Rxa7 $6 Rxg6 46. Kxd5 Kg8 $18) 45... Kg8 ( 45... Rxg7 46. Rxg7 (46. Kxd5 {Zwischenzug}) 46... Kxg7 47. Kxd5 Kf7 48. Kd6 Ke8 49. d5 {And the d- pawn can't be stopped.}) 46. Rxa7 Rg1 47. Kxd5 Rc1 48. Kd6 Rc2 49. d5 Rc1 50. Rc7 Ra1 51. Kc6 Rxa4 52. d6 {Capa showed inspiration and technics. This game became his turnaround in the tournament. White will get a new queen. If you don't see this, Check the remaning analysis. 1-0} (52. d6 b5 53. d7 Rd4 54. Kxb5 Rd6 55. Kc5 Rd1 56. Kc6 Rd4 57. Kb7 Rb4+ 58. Kc8 Rd4 59. d8=Q+ Rxd8+ 60. Kxd8 Kh7 61. Rc6 Kxg7 62. Ke7 Kh8 63. Rg6 Kh7 64. Kf7 Kh8 65. Rh6#) *

Tactics puzzles 13:-White to play and win

A position from one of my games
Answer

Friday 12 July 2013

The joy of chess: ten-year-old beats IM

That was the title of a story in a number of (non-chess) news sources this week. They pointed to a video showing the sheer joy of a boy, who has just turned ten, realizing that he is going to win a game against an IM – and proceeds to do so with enthusiasm and determination. The blitz game took place two and a half years ago, but deserves to be enjoyed by anyone who does not know it. Must watch!

Senior Design Project - MAGIC

 MAGIC
MAGIC is a senior design project completed at the University of Central Florida. It consists of a "magic" chess board controlled by voice commands that also has an AI to play against you.

More Info :- http://eecs.ucf.edu/seniordesign/fa2012sp2013/g03/

Wednesday 10 July 2013

Foreign Policy Magazine :- How Chess Explains the World And predicts the rise and fall of nations. BY JOHN ARQUILLA - JULY 8, 2013

Sometimes art imitates life; some games do so as well. In the case of chess especially, the parallels with power politics are many and uncanny, persisting over the centuries. Originating on the Asian subcontinent, chess moved to Persia ("checkmate" comes from shah mat, "the king is dead") but really began to diffuse widely during the great age of Arab conquest, starting in the 7th century of the Common Era. The structure and rules of the game remained consistent for centuries within Muslim domains, but in Christian countries to which chess spread, innovations emerged.

Members Game 3:- chinchin120 2160–AKacso 2132

A game that I liked (ChessBase 12)
[Event "Open Challenge FIVE for FIGHTING - Boar"] [Site "Chess.com"] [Date "2013.03.18"] [Round "?"] [White "chinchin120"] [Black "AKacso"] [Result "1-0"] [ECO "D63"] [WhiteElo "2160"] [BlackElo "2132"] [Annotator "Houdini 3 Pro x64 (60s)"] [PlyCount "81"] [EventDate "2013.??.??"] {D63: Queen's Gambit Declined: Classical: 7 Rc1} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 O-O 6. e3 Nbd7 7. Rc1 h6 8. Bh4 a6 {last book move} 9. Bd3 ( 9. cxd5 $5 exd5 10. Be2 $14) 9... dxc4 {=} 10. Bxc4 Nb6 {Black threatens to win material: Nb6xc4} (10... b5 $5 {should be examined more closely} 11. Bd3 Bb7 $11) 11. Bd3 {+/=} Nbd5 12. Nxd5 exd5 13. O-O Bg4 14. h3 Bxf3 15. Qxf3 c6 { Covers b5} 16. a3 {Prevents intrusion on b4} Ne4 17. Bxe7 Qxe7 18. Bxe4 Qxe4 19. Qxe4 dxe4 {A double rook endgame occured} 20. Rc5 Rfe8 21. b4 Rad8 22. Rfc1 Re7 23. a4 g6 24. b5 axb5 25. axb5 cxb5 26. Rxb5 f5 27. Rcb1 Rdd7 28. Rb6 { White threatens to win material: Rb6xg6} Kf7 29. h4 Kg7 30. Kh2 Rc7 31. Kg3 Rf7 ({>=} 31... Rc2 $5 $16) 32. Kf4 $18 Rce7 33. R1b5 Rd7 (33... Rc7 {[%tqu "","", "",h5,"",10]} 34. h5 $1 {Deflection: f5} gxh5 35. Rxf5 Rxf5+ 36. Kxf5 Rf7+ 37. Kxe4 Rxf2 38. Rxb7+ Kg6 39. Rb6+ Kf7 (39... Kh7 40. g3 $18) 40. g3 $18) {[%tqu "","","",h5,"",10]} 34. h5 $1 {Deflection: f5} g5+ (34... gxh5 35. Rxf5 { Deflection}) (34... -- $140 35. hxg6 {Wins material}) 35. Ke5 {White intends d5 } Rde7+ (35... f4 {does not save the day} 36. Kxe4 Rde7+ 37. Re5 $18) 36. Re6 Rxe6+ 37. Kxe6 Rf6+ 38. Ke5 b6 39. d5 {[%cal Rf5f4] White intends f4} Kf7 ( 39... Rf8 40. Rxb6 Rc8 41. Rg6+ Kf7 42. Rf6+ Ke7 43. d6+ Kd7 44. Rf7+ Kc6 45. Rc7+ Rxc7 46. dxc7 Kxc7 47. Kxf5 g4 48. Kg6 Kd7 49. Kxh6 Ke8 50. Kg7 g3 51. fxg3 Ke7 52. h6 Kd7 53. h7 Kc6 54. h8=Q Kc5 55. Qc8+ Kb5 56. Qc3 Ka6 57. Qb3 Ka5 58. Kf6 Ka6 59. Ke7 Ka5 60. Kd6 Ka6 61. Kc6 Ka7 62. Qb7#) 40. d6 Re6+ 41. Kd5 (41. Kd5 Rf6 42. Rxb6 $18) 1-0

Members Game 3:-chinchin120–Knight_Tekines


A game that I liked (ChessBase 12)
[Event "World League 2013 Div F Round 4 Team Ni"] [Site "Chess.com"] [Date "2013.05.15"] [Round "?"] [White "chinchin120"] [Black "Knight_Tekines"] [Result "1-0"] [ECO "B21"] [WhiteElo "2136"] [BlackElo "2044"] [Annotator "Houdini 3 Pro x64 (40s)"] [PlyCount "35"] [EventDate "2013.??.??"] {B21: Sicilian: 2 f4 and Morra Gambit} 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 g6 5. Nf3 Bg7 6. Bc4 Nf6 7. e5 Ng4 {Black threatens to win material: Ng4xe5} 8. Bxf7+ Kf8 $2 (8... Kxf7 $142 {would keep Black in the game} 9. Ng5+ Ke8 10. Qxg4 Nc6 $14) 9. Ng5 $18 d6 10. Bd5 Qa5 $4 {terrible, but the game is lost in any case} (10... Ke8 11. e6 Nf6 $18) 11. Qf3+ Nf6 (11... Bf5 {doesn't do any good} 12. Ne6+ Kf7 13. Nd4+ Ke8 14. Nxf5 gxf5 15. Qxf5 $18) 12. exf6 Bxf6 13. Nf7 Kg7 (13... Nd7 {is one last hope} 14. O-O Ke8 15. Nxh8 Ne5 $18) 14. Bh6+ Kg8 {[%tqu "","","",Qxf6,"",10]} 15. Qxf6 $1 {Mate attack} exf6 16. Nxd6+ Qxd5 17. Nxd5 Nd7 (17... Bd7 {doesn't get the cat off the tree} 18. Nxf6#) 18. Ne7# 1-0

Endgame Study 3:-Opposite Color Bishops (C)

White to play , how do you assess this position win for White or draw?

To view the answer click on read more

Tuesday 9 July 2013

Endgame Study 2:-Opposite Color Bishops (B)

If you studied Endgame Study 1:-Opposite Color Bishops (A)
The next one will be easy
Black to play , how do you assess this position win for White or draw?

To view the answer click on read more