Saturday, March 31, 2012

Blackmar-Diemer Gambit Euwe Divided

I divide the Blackmar-Diemer Gambit Euwe Variation into sections, but later I revised them and combined them all back.

The variation begins or transposes to the following:
1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nf3 e6.

You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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Easy Blitz Chess in Caro-Kann Defence

Winning is not always hard. Sometimes winning can be very easy. This is illustrated in a three minute blitz game I just played. White chose to play the Caro-Kann Defence Exchange Variation with an early Nf3.

My approach was to just use General Principles. Consider these:
1. Play faster than your opponent in blitz chess. That was a challenge in this game because my opponent DID play fast. After 16 moves I was only ahead by five seconds. After 24 moves I was up by 16 seconds.
2. Develop faster than your opponent. After 12 moves I had played all my but my Ra8, which was already on a good square since advancing my a-pawn was a likely scenerio.
3. Swap off your weakest pieces. 13...Bxf3 was a good example.
4. Grab open files (Rfc8), diagonals (Bd6) and outposts (Nc4/Ne4) for active play.
5. Attack your opponent's weak points: a4, c3.
6. Keep your king safe: 9...0-0; 22...h6.
7. Threaten undefended material and look for a tactical finish. Like almost every chess game at any level, this one was decided by a tactical blunder.

hapster-Sawyer, ICC 3 0 Internet Chess Club, 29.03.2012 begins 1.e4 c6 2.Nf3 Many of blitz players intend to answer both 1.e4 e5 and 1.e4 c5 with 2.Nf3. After they play 1.e4, the mouse has already clicked on 2.Nf3 when they see my move. It is not a blunder, but it limits White's choices. 2...d5 3.exd5 cxd5 4.d4 Nc6 [4...Nf6 is more popular.] 5.Be2 Bg4 Black gets to swap off his bad bishop. 6.Nbd2 e6 7.c3 Nf6= Black has equalized. 8.Qc2 Bd6 9.a3 0-0 10.b4 Qc7 Black has just about completed his development. White has three weak points: A. Ke1; B. Bc1; C. Pc3. 11.b5 Na5 12.Rb1 Rfc8 13.Bb2 Bxf3 14.Nxf3 Nc4 15.Bxc4 Qxc4 16.a4 a6 17.Qe2 NOW white decides he wants to castle, but my queen hits f1. So he offers a queen swap. 17...Ne4 [Black brings in more reinforcements, but he can just pick off the pawn now: 17...Qxa4-+ ] 18.Qxc4 Rxc4 19.bxa6 bxa6 20.0-0 Rxa4 Black wins a pawn almost without effort. 21.Rfc1 Rc4 22.Ba1 h6 White is not going anywhere. Black takes a moment to eliminate the possibility of a back rank mate. 23.h3 Bf4 24.Rc2 Rac8 25.Rb3 a5 26.Ra3 a4 27.g3 Bd6 Retreat and attack at the same time. White only sees the retreat. 28.Kg2? [White was forced to play 28.Raa2 Nxc3-+ and Black has won another pawn.] 28...Bxa3 0-1

You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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Friday, March 30, 2012

Penullar Wins Ruy Lopez Modern Steinitz

Peter Mcgerald Penullar played in a Ruy Lopez thematic match where the starting position was predetermined through eight moves. This line contains one of the classic Noah's Ark traps where Black can trap and win the White Bb3 with the a6/b5/c4 pawns.

All else being equal, in the opening a minor piece is almost always worth more than two pawns. For whatever reason, Black chooses not to win the bishop, thus allowing an even game. However, after this Black goes on to outplay his opponent for a nice victory.

petemaric-penullar, CHRISTIAN CHESS WORLD, 2012, Match #65, 13.02.2012 begins 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.d4 b5 6.Bb3 Nxd4 7.Nxd4 exd4 8.Qxd4 c5 Thematic Game - This is the starting position. 9.Qd5 Ra7? [This lets White off the hook. Normal is 9...Be6 10.Qc6+ Bd7 11.Qd5 c4 12.Bxc4 bxc4 13.Qxc4 Nf6 14.Nc3 Be7 15.0-0 0-0-+ when White has only two pawns for the bishop.] 10.0-0 [10.c4!= saves the bishop and gives White at least an equal game.] 10...Be6 11.Qc6+ Qd7? [11...Bd7! 12.Qd5 c4-/+ again winning a piece for two pawns.] 12.Qxd7+ Kxd7 13.Bxe6+ fxe6 14.Be3 Rc7 15.Nd2 Nf6 16.a4 b4 17.b3 Be7 The position is equal. 18.Rad1 Rd8 19.Bf4 Kc6 20.f3 Nh5 21.Be3 d5 22.exd5+ [22.g4 Nf6=] 22...exd5 23.Rc1? [Better would have been 23.g4 Nf6 24.Bf4 Bd6 25.Bxd6 Rxd6 with chances for both sides.] 23...Nf6 [23...Bf6! 24.g4 Re7-/+] 24.Bg5 h6 25.Bxf6 [White could try 25.Bf4 Bd6 26.Bxd6 Rxd6=/+] 25...Bxf6 26.Nb1 Re7 27.Rce1 Rde8 28.Rxe7 Rxe7 From here Black goes on to push his queenside pawn majority to victory. 29.g3 Re2 30.Rc1 Bb2 [Or 30...Bd4+! 31.Kf1 Rxh2-+] 31.Rd1 Rxc2 32.Nd2 Rc1 33.Rxc1 Bxc1 34.Nf1 c4 35.bxc4 dxc4 36.Kf2 b3 37.Ke2 b2 0-1

You may also like: Caro-Kann (1.e4 c6) and Queen Pawn (1.d4 d5)
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Thursday, March 29, 2012

Latvian Gambit to Philidor to Mate

Peter Mcgerald Penullar plays a Latvian Gambit that transposes into a Philidor Defence after 3.Bc4. The best approach for White to deal with the Latvian Gambit or the Philidor Defence is to development quickly, control the center and to attack Black weaknesses. Usually Black has trouble activating all his pieces quickly in these defences.

White plays a few rather quiet moves like 4.d3, 5.h3 and 9.a3. From there Peter castles queenside and he mounts a kingside attack that leads to checkmate. This is a good example of how to defeat passive White play.

lakhote-penullar, TPOC vs. IM - Board 4, 22.02.2012 1.e4 e5 2.Nf3 f5 3.Bc4 [This is a good move. The best continuation vs the Latvian Gambit is 3.Nxe5 ] 3...d6 [Black transposes to a Philidor Defence. Sharper play follows 3...fxe4 4.Nxe5 d5 or 4...Qg5] 4.d3 [If 4.d4! fxe4 White has powerful piece sacrifice 5.Nxe5! dxe5 6.Qh5+ Kd7 7.Qf5+ Kc6 8.Qxe5 a6 9.d5+ Kb6 10.Be3+ Bc5 11.Bxc5+ Kxc5 12.b4+ Kxb4 13.Nd2 Qf6 14.Rb1+ Kc5 15.Qxc7+ Nc6 16.Qb6+ Kd6 17.Nxe4+ Black's king has barely avoided checkmate, but the queen is lost and mate may follow soon after anyway.] 4...Be7 5.h3?! Nf6 6.Bg5 [6.Nc3+/-] 6...c6 7.Bxf6?! White gives up his good bishop and activates Black's bad bishop. 7...Bxf6 8.0-0 Qe7 9.a3 f4 10.c3 Be6 11.Qb3 Bxc4 12.Qxc4 Nd7 13.b4 Nb6 14.Qb3 h5 15.Nbd2 White develops this knight about 10 moves too late. 15...g5 16.Nh2 0-0-0 17.Ndf3 [If White defends the kingside with 17.f3 Black can break open the center 17...d5=/+ ] 17...g4 18.hxg4 hxg4 19.Nxg4 Rdg8 20.Nfh2 Rxg4 21.Nxg4 f3! 22.gxf3 Everyone is invited over to White's house for a party! 22...Qh7 23.Qe6+ Kc7 24.Kg2 Qh3+ 25.Kg1 Qh1# 0-1

You may also like: Caro-Kann (1.e4 c6) and Queen Pawn (1.d4 d5)
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Wednesday, March 28, 2012

Kings Gambit Natural Development

Today we have another example of how the King's Gambit often and easily wins against Black's natural development moves. There are probably 20 different reasonable methods of defence to the Kings Gambit, although admittedly some are just barely playable.

Three Black defences are proven to be really good:
A. 1.e4 e5 2.f4 exf4 3.Nf3 g5 - King's Gambit Accepted (old main line)
B. 1.e4 e5 2.f4 d5 3.exd5 exf4 4.Nf3 Nf6 - Modern Defence via Falkbeer
C. 1.e4 e4 2.f4 Bc5 3.Nf3 d6 - King's Gambit Declined Classical Defence

A. The traditional main line of the King's Gambit Accepted 2...exf4 3.Nf3 g5 is the way to simply hold on to the pawn, at least temporarily. Usually Black will play Bg7/d6 and g4 or h6 depending on White's attack: 4.Bc4 (ECO C37-C38) or 4.h4 (ECO C39). Play is tactical, but Black's chances are just as good as White's.

B. Larry Kaufman recommends reaching the Modern Defence (ECO C36) 1.e4 e5 2.f4 exf4 3.Nf3 d5 4.exd5 Nf6 by the 2...d5 move order above. Starts like a Falkbeer Counter Gambit 2.f4 d5 3.exd5 e4, but 3...exf4 makes it a delayed King's Gambit Accepted.

C. Mihail Marin recommends a solid Classical Defence of the King's Gambit Declined (C30) with 2...Bc5. Typical play follows 3.Nf3 d6 4.Nc3 Nf6 5.Bc4 Nc6 6.d3, a position that can also be reached via a Bishop's Opening or Vienna Game. Now 6...Bg4 or 6...a6.

Below is a game where White wins a crushing attack. Black played what would normally be good moves against other openings, but they do not defend against the Kings Gambit.

tgralex-penullar, world players vs Kasparov's Chess, 25.02.2012 begins 1.e4 e5 2.f4 exf4 3.Nf3 Nc6 4.Bc4 d6 5.0-0 [5.d4!+/= grabs the center, threatens Bxf4 and in some cases like ...Be6 the pawn fork d4-d5.] 5...Nf6 6.Nc3 Ne5 7.Bb3 Be6!? 8.d4 Nxf3+ 9.Qxf3 Bxb3 10.axb3 Be7 11.Bxf4 0-0 White has a very promising kingside attack. 12.e5! dxe5 13.dxe5 Nd7 14.Rad1 [White is for choice. There is plenty of time to grab the pawn with 14.Qxb7+/- and return to Qf3 with advantage on both sides of the board.] 14...Qc8 15.Qg4 [15.Nd5!+/- hits e7, c7, f6 with the possibility of redeployment to f5 or g4 via e3.] 15...f5 16.Qg3 [Or 16.exf6 Nxf6 17.Qe2 when all White's pieces are well placed.] 16...g6 [16...Nc5 17.Nd5+/-] 17.Bh6 Re8 18.Rxf5 The gambit player has won a pawn with a great position. Black is lost. 18...Nc5 19.Rdf1 Ne6 20.Rf7 Bf8 21.Qh4 [21.Ne4!+- adds even more tactical threats.] 21...Ng7 22.Nd5 [Or 22.Ne4!+- ] 22...Bc5+ 23.Kh1 Nf5 24.R1xf5 gxf5 25.Qf6 Qe6 26.Qg7# 1-0

You may also like: Caro-Kann (1.e4 c6) and Queen Pawn (1.d4 d5)
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Tuesday, March 27, 2012

Penullar Goes French to Blackmar-Diemer

Once again our friend Peter Mcgerald Penullar figures out another method to attack the French Defence using ideas borrowed from the Blackmar-Diemer Gambit. Usually the French is reached after 1.e4 e6 2.d4 d5 but here both the players reverse their first two moves.

We all KNOW that the French Defence is a good and solid opening. However, like with its cousin, the BDG Euwe, the French defender can easier slip into passive and losing play.

penullar-kucukturank, OMER TCP v ASIA & - Boa, 15.01.2012 begins 1.d4 d5 2.e4 e6 3.Nc3 Bb4 4.Be3!? dxe4 5.f3 Nf6 6.Bc4!? The ideal square of Bd3 is not available. So White develops quickly intending to play Bd3 later if Black castles kingside. 6...Bxc3+ [There is no need to capture on c3 until White plays a3. Instead Junior 12 slightly prefers Black after 6...0-0=/+] 7.bxc3 Nbd7 8.fxe4 0-0 [8...Nxe4 might transpose.] 9.Bd3 Nxe4 10.Nf3 Nxc3 11.Bxh7+ Kxh7 12.Qd3+ Kg8 13.Ng5!? It is hard to resist making a mate threat. 13...Nf6 14.Qxc3 b6 [14...Qd5!? 15.Qxc7 Bd7 16.0-0 Rac8=/+] 15.0-0 Bb7 16.Qd3 White threatens mate in two but eliminating the Nf6 and playing Qh7 mate. 16...Re8?+- [A logical and losing blunder. Proper defence is the counter-attack of 16...Qd5! threatening mate in one. Now 17.Rf2 allows the fork 17...Ne4 exchanging toward the endgame with Black up a pawn.] 17.Rxf6 Qxf6 18.Qh7+ Kf8 19.Rf1 Qxf1+ 20.Kxf1 Bd5 21.Qh8+ Ke7 22.Qxg7 Kd8 23.Nxf7+ 1-0

You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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Monday, March 26, 2012

105 - 1.e4 Chess Repertoire Sicilian Dragon

Welcome again to Main Line Monday. Today we consider Sicilian Dragon variations where Black plays ...g6/...Bg7 in the Sicilian Defence in the first 5-6 moves or so.

There are three common possibilities in the Open Sicilian Defence (3.d4):
1.e4 c5 2.Nf3 g6 - Hyper-Accelerated Dragon
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 - Accelerated Dragon
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 - Main Line Dragon

All can transpose to the Main Line Dragon. The main branch is the Yugoslav Dragon: 6.Be3 Bg7 7.f3 0-0 8.Qd2 Nc6. At this point 9.Bc4 has been played about twice as much at 9.0-0-0. I have focused only on lines that head in this direction. White has many other good set-ups that would require more memory.

My goal is to show the main lines. If you play the main lines, you will always get a playable position. We know this because masters have played these positions hundreds of times on purpose from each side. If one side were losing, they would not keep coming back. We will leave it to the grandmasters to tell us what appear to be the "best" lines at any moment. All we know for sure is that the lines below are good.

[Event "Repertoire 1.e4"]
[Site "?"]
[Date "2012.03.26"]
[Round "?"]
[White "1.e4 White 105"]
[Black "Sicilian Dragon"]
[Result "*"]
[ECO "B33"]
[Annotator "Sawyer,Timothy E"]
[PlyCount "31"]
[EventDate "2012.03.26"]
[SourceDate "2012.01.29"]

1. e4 c5 2. Nf3 d6 (2... Nc6 3. d4 cxd4 4. Nxd4 Nf6 (4... g6 5. Nc3 Bg7 (5...
Nf6 6. Be3) (5... d6 6. Be3 Bg7 (6... Nf6 7. f3) 7. Qd2) 6. Be3 Nf6 (6... d6 7.
Qd2 Nf6 8. f3) 7. f3 O-O (7... d6 8. Qd2) 8. Qd2 d5 9. O-O-O) 5. Nc3 g6 6. Be3
Bg7 (6... d6 7. f3 Bg7 8. Qd2) 7. Bc4 O-O (7... Qa5 8. O-O O-O 9. Bb3 d6 10. h3
Bd7 11. f4 Nxd4 12. Bxd4 Bc6 13. Qd3) (7... d6 8. f3 O-O 9. Qd2) 8. Bb3 a5 (
8... d6 9. f3) 9. f3 d5 10. Bxd5) (2... g6 3. d4 cxd4 (3... Bg7 4. Nc3 cxd4 (
4... Qa5 5. Be3) 5. Nxd4) 4. Nxd4 Nc6 (4... Bg7 5. Nc3) 5. Nc3) 3. d4 cxd4 (
3... Nf6 4. Nc3 cxd4 5. Nxd4) 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 (6... Nc6 7. f3
Bg7 8. Qd2) 7. f3 O-O (7... Nc6 8. Qd2 Bd7 (8... O-O 9. Bc4) 9. Bc4 O-O 10.
O-O-O) (7... a6 8. Qd2) 8. Qd2 Nc6 (8... d5 9. e5 Ne8 10. f4) 9. Bc4 Bd7 (9...
Nd7 10. O-O-O Nb6 11. Bb3 Na5 12. Qd3) (9... Nxd4 10. Bxd4 Be6 11. Bb3 Qa5 12.
O-O-O) (9... Qa5 10. Bb3 Bd7 11. O-O-O) (9... Ne5 10. Bb3 Bd7 11. O-O-O) 10.
O-O-O Rc8 (10... Ne5 11. Bb3 Rc8 (11... Qa5 12. h4 Rfc8 13. Kb1 Nc4 (13... b5
14. Ncxb5) 14. Bxc4 Rxc4 15. Nb3 Qc7 16. Bd4)) (10... Qa5 11. Bb3 Rfc8 (11...
Ne5 12. h4) 12. h4 Ne5 13. Kb1) (10... Qb8 11. h4) (10... Rb8 11. Bb3 Na5 12.
Bh6) 11. Bb3 Ne5 (11... Nxd4 12. Bxd4 b5 13. Nd5) 12. h4 h5 (12... Nc4 13. Bxc4
Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Bh6 Nxe4 17. Qe3 Rxc3 18. bxc3 Nf6 19. Bxg7
Kxg7 20. Rh2) 13. Bg5 Rc5 14. g4 hxg4 15. f4 Nc4 16. Qe2 *

You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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