Open Italian Jerome Gambit

What is a Jerome Gambit? Our chess friend Rick Kennedy has a great site on the various forms of the Jerome Gambit. I suggest you check it out.

Rick Kennedy lists five Jerome Gambit options and writes about them passionately:
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Jerome Gambit
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3 Bc5 5.Bxf7+ Italian Four Knights Jerome Gambit
1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.0-0 Bc5 5.Bxf7+ Semi-Italian Jerome Gambit
1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.0-0 Nf6 5.Nc3 Bc5 6.Bxf7+ Semi-Italian Four Knights Jerome Gambit
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.Bxf7+ Blackburne Shilling Jerome Gambit

Today I humbly present a possible sixth option:
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3 Nxe4 5.Bxf7+ Open Italian Four Knights Jerome Gambit (borrowing from the "Open" Ruy Lopez idea with ...Nxe4)

In a recent Internet Chess Club game, my opponent "jeromed" chose to play a form of Jerome Gambit. Here White gets the piece back. In that way it is more Queen's Gambit than King's Gambit, but it has an aggressive feel. Bill Wall listed it as a "Noa Gambit, Four Knights", but it is so Jerome-ish that I am borrowing that name, especially in view of my opponent's ICC handle. Eventually Black gets a better game, and White misses a tactic. But as I note below, there were possible opening improvements for both sides.

And yes, this is the same Rick Kennedy I cite on page 19 of my Blackmar-Diemer Gambit Keybook II (published March 1999) under BDG Theory: "Rick Kennedy points out that the Blackmar-Diemer Gambit is a 1.d4 opening that plays like a 1.e4 opening."

jeromed-Sawyer, ICC 3 0 Internet Chess Club, 24.05.2012 begins 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3 Nxe4 5.Bxf7+ [The Jerome Gambit idea. Usually White plays 5.Nxe4 d5 6.Bd3 dxe4 (6...Nb4!= Kaufman) 7.Bxe4 Bd6= (7...Ne7!? is an interesting alternative.)] 5...Kxf7 6.Nxe4 d5 7.Ng3!? [By far the most common is 7.Neg5+ Kg8-/+ Material is even but theory favors Black with his two central pawns and two bishops. White has scored 22% from this position in over 200 games in my database.] 7...Bd6 [7...e4! 8.0-0 (or 8.Ng1 h5-/+) 8...exf3 9.Qxf3+ Qf6 10.Qxd5+ Be6 11.Qb5 Nd4 12.Qxb7 Bd6 when Black is well developed and aggressively poised, but White has at moment three pawns for the sacrificed bishop.] 8.d3 Rf8 9.Bg5 [White can quickly castle kingside: 9.0-0 Kg8 10.h3 h6 11.c4 Fighting for e4 for the Ng3. 11...Be6 12.cxd5 Bxd5 13.Ne4 Nd4 14.Nxd4 exd4 15.Qg4 with a playable game for White, although it seems Black a little stands better.] 9...Qe8 10.Qd2 Kg8 [10...h6 forces White to somehow give up his bishop, but I wanted a safer king in a 3 minute blitz game.] 11.0-0-0 Bg4 12.h3 Black gives up a pawn for an open g-file. 12...Bxf3 13.gxf3 Rxf3 14.Rhg1 Qf7 15.Nh1 Kh8 Unpinning the g-pawn. 16.c3 d4 17.c4 Rf8 [I missed 17...Nb4!-+] 18.Bh4? Missing the diagonal threat to follow. 18...e4 19.dxe4? Bf4 White resigns as the queen is lost. 0-1


You may also like: Caro-Kann (1.e4 c6) and Queen Pawn (1.d4 d5)
Copyright 2015 Home Page / Author Page / sawyerte@yahoo.com

Blackmar-Diemer Ryder "Refuted?"

Jocelyn Bond comments about whether the Ryder Gambit (1.d4 d5 2.e4 exd4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3) and asks whether it has been refuted by 5...Qxd4 6.Be3 Qg4 7.Qf2 e5?

"This e5 variation is a refutation of the Ryder? 2 pawns up, it is big material advantage.
I think in the other variations...i think about
5...Nc6 6.Bb5 seems ok for White
5...c6 6.Be3 is often played against me and
5..e6 6.Bf4 (6...Qxd4? 7.Nb5 is strong) 6...Bd6 7.Bg5 seems standard here
5...g6! 6.Bf4 seems to be a good plan for black. but i like to place my bishop on e5....
Anyway Tim you are very kind to do a blog on the Ryder accepted...
I heard about the Schiller book but nothing more... it seems excellent... Do you know if he says that the ryder is refuted by Qxd4?"

"Refuted" in chess opening terminology has to do with theory or evidence. Basically, a variation is refuted if: when you play it, you lose.
There are three types of "refuted" variations:
1. When computer analysis overwhelmingly favors your opponent's side.
2. When the performance ratings are significantly below expectations.
3. When you lose regularly with this variation against your opponents.

Let's look at each one individually in regards to the Ryder Gambit and 7...e5 line.
1. Computer analysis favors Black, but not quite by two pawns. White usually has compensation for only one of the two pawns sacrificed. That is bad for White.
2. Performance rating for the Ryder is above expectations, but after 7...e5 below. 5.Qxf3 scores 60% with a performance rating +52 points above actual rating (1346 games), but after 7...e5 White scores 47% with a performance rating -42 points below actual rating (272 games). This means about 1 in 5 players as Black have followed up 5.Qxf3 with all three moves, Qxd4/Qg4/e5. Those who play this way have scored well with Black. In the games where the other four players varied, White did well.
3. Are your opponents likely to regularly find very good moves for Black? The higher they are rated, the more likely they are to know this stuff. Diemer was still winning with the Ryder Gambit in his 80s, so there is practical value, along with real risk.

One author that recommends 7...e5! for Black is IM James Rizzitano in his book "How to Beat 1 d4" ("A sound and ambitious repertoire based on the Queen's Gambit Accepted"). Rizzitano sites a few games as examples, the first one being Alex Lane - Tim Sawyer, played in one of Tom Purser's thematic BDG tourneys in 1997. Lane chose 8.Be2. Better seems to be 8.Nf3 or 8.a3, but Black stands better in theory. To sum up I quote International Master James Rizzitano again: "The Ryder Gambit is unsound and the reader should be extremely sceptical of any claims to the contrary."

Lane-Sawyer, corr BDG thematic (2), 1997 begins 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3 Qxd4 6.Be3 Qg4 7.Qf2 e5 8.Be2 Qf5 9.Qg3 Bb4 10.0-0-0 Bxc3 11.bxc3 0-0 12.Bd3 e4 13.Bc4 Qa5 14.Ne2 Be6 15.Bb3 Bg4 16.Bd4 Nbd7 17.Rhe1 c5 18.Bxf6 Nxf6 19.Rd6 c4 20.Bxc4 Bxe2 21.Bxe2 Qxa2 0-1


You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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104 London System Repertoire: 1.d4 d5 Classical

Here on Main Line Monday we finish up the London System Repertoire by compiling prepared responses to the most common Classical moves Black will try. This usually involves Black playing 1.d4 d5 2.Bf4 with a combination of ...e6/...c5/...Nf6 in any order.

Note that I follow the recommendation to play 2.Bf4 vs 1..d5 but 2.Nf3/3.Bf4 vs 1...Nf6. For most lines it rarely matters, but for some it is better to play this way. Holding back Nf3 (say after 1.d4/2.Bf4/3.e3) allows the White queen to cover h5, thus avoiding for the moment Nf6-Nh5xB.

Next week we will cover one related line in the Slav Defence (3.cxd5 cxd5) which can transpose to some London lines. Then we move on to something completely different.

[Event "London System"]
[Site "?"]
[Date "2012.05.28"]
[Round "?"]
[White "104 London"]
[Black "1.d4 d5 2.Bf4 Nf6 3.e3"]
[Result "*"]
[ECO "D02"]
[Annotator "Sawyer,Timothy E"]
[PlyCount "23"]
[SourceDate "2012.01.29"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 (3... c5 4. c3 Nc6 (4... Qb6 5. Qb3 Qxb3 (5... c4
6. Qxb6 axb6 7. Nf3 Nc6 8. Na3 Bf5 (8... Ra5 9. Bc7) 9. Nb5) 6. axb3 cxd4 7.
exd4 Nc6 8. Nf3 Bf5 9. Nbd2) 5. Nd2 Qb6 (5... cxd4 6. exd4) 6. Qb3 c4 (6... Bf5
7. dxc5) 7. Qc2) (3... c6 4. c4 Bf5 (4... e6 5. Nc3) 5. Nc3 e6 6. Qb3 Qb6 7. c5
Qxb3 8. axb3 Nbd7 9. b4) (3... Bf5 4. c4 c6 (4... e6 5. Nc3 Nc6 (5... c6 6. Qb3
) (5... Bb4 6. Nf3) 6. Nf3 Bb4 (6... Be7 7. Be2) (6... a6 7. Rc1) 7. Bd3) 5.
Nc3 e6 6. Qb3 Qb6 (6... Qc8 7. Nf3 Nbd7 8. Nh4) 7. c5 Qxb3 8. axb3 Nbd7 9. b4)
(3... g6 4. Nf3) (3... Nc6 4. Nf3) (3... Bg4 4. Nf3) 4. Nd2 c5 (4... Bd6 5. Bg3
O-O 6. Bd3 c5 7. c3 cxd4 (7... Nc6 8. Ngf3) 8. exd4) (4... Be7 5. Bd3 O-O 6. c3
) (4... c6 5. Bd3) 5. c3 Nc6 6. Ngf3 Bd6 (6... Be7 7. Ne5 O-O (7... Nxe5 8.
dxe5 Nd7 9. Bd3 O-O 10. Qh5) 8. Bd3 Bd7 (8... Nxe5 9. dxe5 Nd7 10. Qh5) (8...
Nd7 9. Nxc6 bxc6 10. Nf3) 9. Qf3 Rc8 10. Qh3) (6... cxd4 7. exd4 Bd6 8. Bxd6
Qxd6 9. Bd3 O-O 10. O-O e5 (10... Qf4 11. Re1) (10... Bd7 11. Re1) 11. dxe5
Nxe5 12. Nxe5 Qxe5 13. Re1) (6... Qb6 7. Qb3 Be7 (7... Qxb3 8. axb3) 8. h3) (
6... a6 7. Bd3 Be7 8. h3 O-O 9. O-O) (6... Nh5 7. Bg5 Qb6 8. dxc5 Bxc5 (8...
Qxb2 9. Nd4 Qxc3 10. Rc1) 9. b4 Bd6 10. Nc4) (6... Bd7 7. Bd3 Be7 8. Ne5) 7.
Bg3 O-O (7... Bxg3 8. hxg3 Qd6 9. Bb5) 8. Bd3 Qe7 (8... Re8 9. Ne5 Bxe5 (9...
Qc7 10. f4 Ne7 11. O-O) (9... Qe7 10. O-O Nd7 11. f4) 10. dxe5 Nd7 11. Nf3 Qc7
12. O-O Ndxe5 (12... g6 13. e4) 13. Nxe5 Nxe5 14. Qh5) (8... b6 9. Ne5 Bb7 10.
f4 Ne7 11. O-O) 9. Ne5 Nd7 (9... Bxe5 10. dxe5 Nd7 11. f4 f6 12. Nf3) 10. f4 f6
11. Nxc6 bxc6 12. O-O *


You may also like: King Pawn (1.e4 e5) and Sicilian (1.e4 c5)
Copyright 2015 Home Page / Author Page / sawyerte@yahoo.com

103 London System Repertoire: 1.d4 d5 Variations

We continue our series of the London System repertoire for Main Line Monday. This we look at the various odd lines after 1.d4 d5. More popular lines will be considered next week. Below are some typical variations that I prepared for a recent tournament.

For much of my London System theory, I rely on the book "Win with the London System" by Sverre Johnsen and GM Vlatko Kovacevic. This grandmaster has played this opening throughout his career. One thing I learned from his book is the value of playing c4 as White instead of the more traditional c3 in some lines. This is especially true when Black has played an early ...Bf5.

[Event "London System"]
[Site "?"]
[Date "2012.05.21"]
[Round "?"]
[White "103 London"]
[Black "1.d4 d5 misc. lines"]
[Result "*"]
[ECO "D02"]
[Annotator "Sawyer,Timothy E"]
[PlyCount "27"]
[SourceDate "2012.01.29"]

1. d4 d5 (1... Nf6 2. Nf3 d5 3. Bf4 c5 (3... e6 4. e3 c5 5. c3 Nc6 6. Nbd2 Be7)
(3... Bf5 4. e3 e6 5. c4) 4. c3 Nc6 5. e3 Qb6 (5... Bg4 6. Nbd2 e6 7. Bd3) (
5... Bf5 6. dxc5) 6. Qb3 c4 7. Qc2 Bf5 8. Qc1 h6 (8... e6 9. Nbd2 Be7 10. h3) (
8... Nh5 9. Bg3) 9. h3 e6 10. Nbd2 Be7 (10... Qd8 11. b3) 11. Be2 O-O 12. O-O
Qd8 13. b3) 2. Bf4 Bf5 (2... e6 3. e3 c5 (3... Bd6 4. Bxd6 Qxd6 5. Qg4) 4. c3
Nc6 5. Nf3 f5 (5... Nf6 6. Nbd2) 6. Nbd2 Nf6 7. h3 Be7 8. Bd3 O-O 9. O-O) (2...
c6 3. Nf3 Bf5 (3... Qb6 4. Qc1) (3... Nf6 4. e3 Bg4 5. c4 e6 6. Nc3 Be7 7. Qb3)
(3... e6 4. e3 Bd6 5. Bg3 Nf6 6. Nbd2 Nh5 7. Bxd6) 4. e3 Nf6 5. c4 e6 6. Nc3
Nbd7 7. Qb3) (2... Nc6 3. Nf3 Nf6 (3... Bg4 4. e3 e6 5. c4) 4. e3 Bg4 (4... a6
5. c4 Bf5 6. Nc3 e6 7. a3) (4... e6 5. c4 Bd6 6. Bxd6 cxd6 7. Nc3) (4... Bf5 5.
c4 e6 6. Nc3) (4... Nh5 5. Bg5 h6 6. Bh4 g5 7. Nfd2) 5. c4 e6 6. Nc3 Bb4 (6...
Bd6 7. Bg3 O-O 8. Be2) 7. Rc1 O-O 8. a3 Bxc3+ 9. Rxc3) (2... Nf6 3. e3) (2...
c5 3. c3 Nc6 4. e3 e6 (4... Nf6 5. Nd2) 5. Nf3) (2... g6 3. Nf3 Bg7 (3... Nf6
4. e3) 4. e3 Nf6 5. Be2) 3. e3 e6 4. Nf3 Nf6 (4... c6 5. c4) (4... Bd6 5. Bxd6
cxd6 (5... Qxd6 6. Bd3) 6. Bd3) 5. c4 c6 (5... Bxb1 6. Qxb1 Bb4+ 7. Kd1) (5...
Nc6 6. Nc3 Bb4 (6... Be7 7. Be2) (6... a6 7. Rc1) 7. Bd3) 6. Nc3 Nbd7 (6... Bd6
7. Bxd6 Qxd6 8. Qb3 b6 9. Be2) (6... Be7 7. Qb3 Qc8 8. h3) (6... Bb4 7. Qb3) (
6... Qb6 7. Qb3 Qxb3 (7... Nbd7 8. c5 Qxb3 9. axb3) 8. axb3 Nbd7 9. c5) 7. Qb3
Qb6 (7... Qc8 8. Nh4) 8. c5 Qxb3 9. axb3 a6 (9... Be7 10. b4) 10. b4 Rc8 11. h3
h6 (11... Be7 12. Nd2 Bd8 13. Nb3 O-O 14. Na5) 12. Nd2 Be7 13. Nb3 Bd8 14. Na5
*


You may also like: King Pawn (1.e4 e5) and Sicilian (1.e4 c5)
Copyright 2015 Home Page / Author Page / sawyerte@yahoo.com

102 London System Repertoire: Kings Indian

Welcome again to Main Line Monday. Each Monday morning I plan to present a piece of a repertoire covering about 100 positions at a time in a wide variety of chess openings. The main line is the London System. Here are the London System King's Indian lines. Black usually employs, in some convenient order, the set-up Nf6 g6 Bg7 0-0 d6 and plays for e5 or c5. Below is a repertoire I actually used in preparing for a recent tournament.

About 20 years ago Andy Soltis wrote a book on the London System were I am listed as a Research Assistant. In his book Soltis covers the standard 1.d4 2.Nf3 3.Bf4 4.e3 5.h3 vs the King's Indian to deal with the ...Nf6-Nh5 threat. Other authors have tried to show that White has nothing to fear from that and can take time to play 5.Be2 prior to h3. I have followed the 5.Be2 idea in my repertoire.

[Event "London System"]
[Site "?"]
[Date "2012.05.14"]
[Round "?"]
[White "102 London"]
[Black "1.d4 Nf6 Kings Indian"]
[Result "*"]
[ECO "D02"]
[Annotator "Sawyer,Timothy E"]
[PlyCount "23"]
[SourceDate "2012.01.29"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 (3... Nh5 4. Bg5) (3... d6 4. e3 Nh5 (4... Bg7
5. h3) 5. Bg5 h6 6. Bh4 g5 7. Nfd2 Ng7 8. Bg3 Nf5 9. Bd3 Bg7 10. Qf3) 4. e3 O-O
(4... d5 5. Be2 O-O (5... c6 6. c3) 6. O-O c5 (6... c6 7. h3 Nbd7 8. c3 Re8 9.
Nbd2) 7. c3 Nc6 8. h3) (4... Nh5 5. Bg5 h6 6. Bh4 g5 7. Nfd2) (4... d6 5. h3 b6
6. Be2 Bb7 7. O-O Nbd7 8. c3 Nd5 (8... O-O 9. Nbd2) 9. Bg3) 5. Be2 d6 (5... c5
6. c3 b6 7. h3 Bb7 8. Nbd2 d6 9. O-O) (5... Nh5 6. Bg5 h6 7. Bh4 g5 8. Nfd2
gxh4 9. Bxh5) 6. h3 Nbd7 (6... c5 7. c3 Qb6 (7... b6 8. Nbd2 Bb7 (8... Nbd7 9.
O-O) 9. O-O Nc6 (9... Nbd7 10. Bh2) 10. Bh2 cxd4 11. exd4) (7... Be6 8. dxc5
dxc5 9. Qxd8 Rxd8 10. Nbd2) (7... a6 8. O-O b5 9. a4) (7... Nc6 8. O-O cxd4 9.
exd4) 8. Qb3 Be6 9. Qxb6 axb6 10. a3 Nc6 11. Nbd2 Na5 12. O-O) (6... b6 7. O-O
Bb7 8. Nbd2 Nbd7 9. Bh2 c5 10. c3) (6... Nc6 7. O-O Nh5 (7... Qe8 8. Bh2) 8.
Bh2 f5 9. c3) (6... Nfd7 7. O-O Nc6 8. Bh2 e5 9. c3 f5 10. b4) (6... c6 7. O-O
Nbd7 8. c4) 7. O-O c5 (7... Qe8 8. c4 e5 9. Bh2 Qe7 (9... c6 10. Nc3 Qe7 11. b4
) (9... Ne4 10. Nbd2 Nxd2 11. Qxd2 e4 12. Ne1) 10. Nc3 c6 (10... e4 11. Nd2 Re8
12. b4) (10... Re8 11. b4) 11. b4 Ne8 12. Rc1) (7... b6 8. c3 Bb7 (8... c5 9.
Nbd2) 9. Nbd2 Qe8 10. a4) (7... c6 8. c4 Re8 9. Nc3 Qa5 (9... a6 10. a4) (9...
e5 10. dxe5 dxe5 11. Nxe5) (9... Qb6 10. Qc2) 10. a3) (7... Re8 8. c4) (7...
Ne4 8. Nbd2 Nxd2 9. Qxd2 e5 10. Bh2) (7... e6 8. c4) 8. c3 b6 (8... a6 9. a4 b6
10. Nbd2 Bb7 11. Bh2) 9. Nbd2 Bb7 (9... a6 10. a4) 10. Bh2 Ne4 (10... Qc7 11.
a4 a6 12. Qb3) (10... Rc8 11. a4 a6 12. Re1) (10... a6 11. a4 Ra7 12. Re1) (
10... Re8 11. a4 a6 12. Qb1) 11. Nxe4 Bxe4 12. a4 *


You may also like: King Pawn (1.e4 e5) and Sicilian (1.e4 c5)
Copyright 2015 Home Page / Author Page / sawyerte@yahoo.com

Brian Wall's Fishing Pole Ruy Lopez

Brian Wall of Colorado is famous for many variations with creative names. One of Brian Wall's most well-known openings is the Fishing Pole in the Ruy Lopez.

The Fishing Pole includes the idea of Nf6-g4 as Black, and if attacked by h2-h3, then h7-h5. This includes a trap as presented below. There I try a Fishing Pole in the style of Brian Wall.

There is more to the variation that just the trap. Taking the knight is very risky.
Here are the most common continuations:
A. 6.d4 exd4 7.Nxd4 Bc5
B. 6.c3 a6 7.Ba4 Bc5
C. 6.d3 Bc5 7.c3 a6

I am not saying the variation is super strong or even completely sound. But it is tricky. Here I win a short and sweet blitz game vs the computer program "mscp".

mscp-Sawyer, ICC 5 0 Internet Chess Club, 29.10.2011 begins 1.Nf3 Nc6 2.e4 e5 Transposing to the Open Game. 3.Bb5 Nf6 4.0-0 Ng4 This looks like the bait. 5.h3 h5 This is the pole. 6.Bxc6 dxc6 7.hxg4 hxg4 8.Nxe5 Taking the bait. 8...Qh4 White cannot avoid checkmate. 9.f3 g3 10.d4 Qh1# 0-1 White is checkmated 0-1


You may also like: Caro-Kann (1.e4 c6) and Queen Pawn (1.d4 d5)
Copyright 2015 Home Page / Author Page / sawyerte@yahoo.com
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101 - London System Repertoire: Queens Indian

This month for Main Line Mondays, we will look at the London System for White. I have used this opening off and on for 20 years, including games vs masters and experts.
The London System set-up is easy to play against anything Black tries. White aims for 1.d4/2.Nf3/3.Bf4/4.e3. The c-pawn will go to c3 or c4 depending Black defensive choice.

Here is an index of the variations:
101 - London System - 1.d4 vs Queens Indian, Dutch Defence, etc.
102 - London System - 1.d4 vs Kings Indian Defence
103 - London System - 1.d4 vs 1...d5
104 - London System - 1.d4 d5 2.Bf4 Nf6 3.e3 Classical
105 - Slav Exchange - 1.d4 d5 2.c4 c6 3.cxd5 cxd5 London by transposition

We begin with the odds and ends where Black avoids both 1.d4 d5 and the King's Indian defences. Generally I follow Cyrus Lakdawala's preference to play the move orders 1.d4 Nf6 2.Nf3 and 1.d4 d5 2.Bf4. In the London System, I respond to any early ...c5 move with c3. While rare, it is possible for the continuation 1.d4 c5 2.c3 cxd4 3.cxd4 d5 transposing to the Slav Defence Exchange Variation. It is a handy line to know as White, so I give that complete and separate coverage. Each has about 100 training positions.

[Event "London System"]
[Site "?"]
[Date "2012.05.07"]
[Round "?"]
[White "101 London"]
[Black "1.d4 Queens Indian"]
[Result "*"]
[ECO "D02"]
[Annotator "Sawyer,Timothy E"]
[PlyCount "23"]
[SourceDate "2012.01.29"]

1. d4 Nf6 (1... f5 2. Nf3 Nf6 (2... g6 3. Bf4 d6 4. e3 Bg7 5. Bc4) 3. Bf4 e6 (
3... d6 4. e3 g6 5. h3 Bg7 6. Bc4) (3... g6 4. e3 Bg7 5. h3 d6 6. Bc4 e6 7. c3
O-O 8. Nbd2) 4. e3 Be7 (4... d5 5. c4 c6 6. Nc3 Be7 (6... Bd6 7. Bd3 O-O (7...
Bxf4 8. exf4) (7... dxc4 8. Bxc4) 8. O-O Ne4 (8... Qe7 9. c5) 9. Qc2) 7. Bd3
O-O 8. O-O) (4... b6 5. h3 Bb7 6. Be2 Be7 7. O-O O-O 8. c4) 5. h3 O-O (5... d6
6. c4) (5... b6 6. Be2) (5... d5 6. c4) 6. c4 d6 7. Nc3 Qe8 8. Bd3) (1... c5 2.
c3 Nf6 3. Nf3 cxd4 (3... e6 4. Bf4) 4. cxd4 d5 (4... g6 5. Nc3 Bg7 6. Bf4 d6 7.
h3 O-O 8. e3 Nc6 9. Be2 Bf5 10. O-O Rc8 11. a3 a6 12. Rc1) 5. Nc3 Nc6 6. Bf4) (
1... g6 2. Nf3 Bg7 3. Bf4 d6 4. e3 c6 (4... Nf6 5. Be2) 5. Be2 Nf6 6. h3) (1...
e6 2. Bf4 c5 (2... f5 3. Nf3) (2... d5 3. e3) (2... Nf6 3. e3) 3. c3) (1... c6
2. Nf3 d5 3. Bf4) (1... d6 2. Nf3 f5 3. Bf4 g6 4. e3) 2. Nf3 e6 (2... d6 3. Bf4
Bg4 (3... g6 4. e3) (3... Nbd7 4. e3) (3... c6 4. e3) 4. Nbd2 c6 (4... Nbd7 5.
h3 Bh5 6. c3) 5. h3 Bxf3 6. Nxf3) (2... b6 3. Bf4 Bb7 4. e3 e6 (4... g6 5. h3)
5. Nbd2) 3. Bf4 b6 (3... d5 4. e3 Nh5 (4... c6 5. Bd3) 5. Bg5) (3... c5 4. c3
b6 (4... Nc6 5. e3 Be7 6. Nbd2 O-O 7. h3) 5. e3 Bb7 6. Nbd2 Be7 7. h3 O-O 8.
Bd3 Nc6 9. O-O d6 10. Qe2) (3... Be7 4. e3 O-O 5. h3 d5 6. Nbd2 Nbd7 7. Bd3 c5
8. c3) 4. e3 Bb7 5. Nbd2 Be7 (5... Bd6 6. Bg3) (5... c5 6. c3 Nc6 7. Bd3) 6. h3
c5 (6... O-O 7. Bd3 d5 8. O-O) 7. c3 O-O (7... Nc6 8. Bd3 O-O 9. O-O) (7... d6
8. Bd3 O-O 9. O-O) 8. Bd3 cxd4 (8... d6 9. O-O Nc6 10. Qe2 Rc8 (10... Re8 11.
Rfd1) 11. Bh2) (8... d5 9. O-O Nbd7 10. Re1) (8... Nc6 9. O-O Re8 10. a3) 9.
exd4 d6 10. O-O Nbd7 (10... Nc6 11. Qe2) 11. Qe2 Re8 12. Bh2 *


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