Here a first experimental attempt to emphasize some simple concepts for whoever is interested.
Feel free to provide other ideas in the thread.
If anyone doesn't like anything here complain to your national chess federation.
Below is a very general analysis designed to bring out some basic principles.
The single variations are provided by crafty with scores running at 5 seconds/move on a not so fast machine, so don't expect combinatorial brilliancies.
The analysis is purely from the perspective of white alone, intentionally and it has been kept very simple as well.
The moves have been 'spread out' to make for easier reading and deeper contemplation.
There is a summary of the main ideas at the end.
1.e4 e6 2.d4 c5 3.Nf3 cxd4 4.Qxd4
{usually better not to bring Qs out early}
( {10:+0.34} 4.Nxd4 Nf6 5.Bd3 Bc5 6.Nb3 Bd6 7.O-O O-O 8.Nc3 Nc6 )
4...Qb6
5.Be3
{Qxb6 would have doubled Ps for black}
( {9:+0.82} 5.Qxb6 axb6 6.Nc3 Bc5 7.Bc4 Nf6 8.e5 Ng4 9.O-O O-O )
5...Qxd4
6.Bxd4
{Nxd4 controls center better - the B's opportunities are somewhat limited. For instance, Nb5 practically forces ...Na6 placing the N off to the side.}
( {9:+0.94} 6.Nxd4 Nf6 7.Nb5 Na6 8.N1c3 Bb4 9.a3 Bxc3+ 10.Nxc3 d5 11.Bd3 )
6...b6
7.c4
{better to develop pieces than push Ps}
( {10:+1.01} 7.Nc3 Nc6 8.Nb5 Rb8 9.Nd6+ Ke7 10.Be5 f5 11.O-O-O fxe4 12.Nxe4 Nxe5 13.Nxe5 )
7...Bc5??
8.b3?
{overlooking a free P and R}
( {11:+6.32} 8.Bxg7 Nf6 9.Bxh8 )
8...Bxd4
9.Nxd4 9...Nc6
10.Nf3
{Nb5 forces the K to move preventing keeping it in the middle}
( {11:+0.25} 10.Nb5 Ke7 11.N1c3 a6 12.Na3 Nf6 13.Rd1 Nb4 14.Bd3 Nxd3+ 15.Rxd3 Bb7 16.e5 )
10...f5
11.Bd3
{a nice idea to develop a piece and take back into the center, but ...Nb4 embarrasses the B}
( {11:+0.27} 11.exf5 exf5 12.Nc3 Nge7 13.Be2 O-O 14.O-O Bb7 15.Rad1 Rad8 16.Nd5 Nxd5 17.Rxd5 )
11...fxe4?!
12.Bxe4
( {12:+0.09} 12.Bxe4 Bb7 13.O-O Nf6 14.Bxc6 Bxc6 15.Ne5 O-O 16.Nc3 Rac8 17.f4 a5 18.Rfe1 )
12...Bb7
13.Nc3
( {11:+0.06} 13.O-O Nf6 14.Nc3 O-O 15.Bxc6 Bxc6 16.Ne5 Rac8 17.h4 d5 18.Rad1 dxc4 19.bxc4 )
13...Rb8
14.O-O 14...Nb4
15.Rad1!
{getting control of the dfile}
( {11:+1.36} 15.Bxb7 Rxb7 16.a3 Nc6 17.Nb5 Ke7 18.Rad1 Na5 19.Rd3 Nf6 20.Nd6 Rc7 )
15...Bxe4
16.Nxe4 16...Nf6
17.Nd6+!
{using the dfile}
( {11:+1.12} 17.Nd6+ Ke7 18.a3 Nc6 19.Rfe1 Ne8 20.Nf5+ Kf6 21.Ng3 Rd8 22.Ne4+ Kg6 23.Nh4+ Kh6 24.Rd3 )
17...Ke7
18.Ne5
{might have been a good idea to drive the N away. if Nxa2, retalliation may not come swiftly}
( {10:+0.92} 18.a3 Nc6 19.Rfe1 Ne8 20.Nf5+ Kf6 21.Ng3 Rd8 22.Ne4+ Kg6 23.Nh4+ Kh6 24.Rd3 )
18...Nc6
( {9:+0.29} 18...Nxa2 19.Rfe1 Rbf8 20.h4 Nc3 21.Rd3 Ncd5 22.Nf5+ exf5 23.Ng6+ Kd6 24.Nxh8 Rxh8 25.cxd5 Nxd5 )
19.Nef7
{Ns are working well together}
( {10:+0.54} 19.Nf3 Ne8 20.Nb5 Rd8 21.Rfe1 Kf7 22.Ng5+ Kg6 23.h4 Rf8 24.Re4 )
19...Rhf8
20.Ng5 20...h6
21.Nge4
{after N exchanges, white doesn't gain anything}
( {11:+0.44} 21.Nf3 Ne8 22.Nb5 Rf7 23.Rfe1 Kf8 24.h4 a6 25.Nc3 Kg8 26.a3 {HT} )
21...Nxe4
22.Nxe4 22...a6
23.Rd6?
{...Rf4 can destroy the defender of R on d6}
( {9:+0.38} 23.Rfe1 Rf5 24.Nd6 Re5 25.Rxe5 Nxe5 26.Kf1 Kf6 27.f4 Ng4 )
23...b5
( {13:-0.75} 23...Rf4 24.f3 Rxe4 25.Rxc6 Re2 26.Rc7 Rxa2 27.Rd1 Rd8 28.Rb7 b5 29.cxb5 axb5 30.Rxb5 )
24.Rfd1!
{doubling the Rs}
( {10:+0.57} 24.Rfd1 Rbd8 25.cxb5 axb5 26.Nc5 Ne5 27.a4 bxa4 28.bxa4 g5 29.a5 g4 )
24...Rbd8
25.Nc5!
{more pressure on the dP}
( {11:+0.83} 25.cxb5 axb5 26.Nc5 Nb8 27.Rb6 Rf5 28.Nxe6 Rf6 29.Nc7 Rxb6 30.Nd5+ Kd6 31.Nxb6+ Ke5 )
25...Nb8
26.Nb7
{...Rc8 might be awkward for white}
( {10:+0.60} 26.a4 bxa4 27.bxa4 a5 28.Kf1 Rf5 29.Nxe6 Rc8 30.Nd4 Rxf2+ 31.Kxf2 Kxd6 )
26...Rde8
27.R6d4
( {10:+0.90} 27.Nc5 Rd8 28.cxb5 axb5 29.Rb6 b4 30.Rxb4 d6 31.Rb7+ Nd7 32.Nxd7 Rxd7 33.Rxd7+ Kxd7 )
27...bxc4
28.bxc4
{Nd6 would have prevented the splitting of the Ps}
28...Nc6
29.Rxd7+!
{making the doubled Rs pay off}
( {9:+1.72} 29.Rxd7+ Kf6 30.R7d6 Rc8 31.Nc5 Rfe8 32.f3 Ne5 33.Ne4+ Kf5 34.c5 Rc6 )
29...Kf6
30.R1d3?
{results in R fork, while Rd6 starts putting pressure on the eP }
( {10:+1.79} 30.R7d6 Re7 31.Rxc6 Rxb7 32.Re1 Re8 33.Rxa6 Rb2 34.c5 Rc2 )
30...Ne5
31.Nd6 31...Nxd3
32.Nxe8+
( {12:+0.61} 32.Nxe8+ Rxe8 33.Rxd3 Rc8 34.Rd4 e5 35.Re4 Rd8 36.g4 Rd4 37.Rxd4 exd4 38.h4 g5 39.hxg5+ hxg5 )
32...Rxe8
33.Rxd3 33...Rc8 34.Rc3 34...g5
35.c5
( {11:+0.77} 35.f3 Ke5 36.Re3+ Kd6 37.Re4 Rb8 38.Kf2 Rb2+ 39.Re2 Rb4 40.Rd2+ Kc5 41.Re2 Kxc4 42.Rxe6 )
35...e5
36.g4 36...e4
37.Kg2?!
{the K may have trouble getting into the center from here}
( {11:+0.99} 37.c6 Ke7 38.Kg2 a5 39.Rc5 Kd6 40.Rxa5 Rxc6 41.Rb5 Rc2 42.a4 )
37...a5
( {11:+0.50} 37...Ke5 38.h3 Rc6 39.Ra3 Kd5 40.Ra4 Rxc5 41.Rxa6 Rc2 42.a4 e3 )
38.h3
( {11:+0.76} 38.c6 Ke5 39.c7 Kd6 40.Rh3 Rxc7 41.Rxh6+ Ke5 42.Rh5 Kf4 43.h4 gxh4 44.Rxh4 Rc2 )
38...a4
( {12:+0.54} 38...Ke5 39.c6 Kd4 40.Ra3 Rxc6 41.Rxa5 Rc2 42.Ra8 e3 43.Rd8+ Ke4 44.Re8+ Kf4 45.Rxe3 Rxa2 )
39.a3
{Re3 might be better because it attacks the eP and eventually can tie up the Qside or black loses the aP}
( {12:+1.26} 39.Re3 Rxc5 40.Rxe4 a3 41.Re3 Ra5 42.Kf3 Ra4 43.Kg3 Kf7 44.h4 h5 )
39...Kg6
( {12:+0.85} 39...Ke5 40.Rc4 Kd5 41.Rxa4 Rxc5 42.Ra8 Rc2 43.a4 Ke5 44.Re8+ Kf4 45.a5 Ra2 )
40.Kg3?
{notice that by moving away from the center, black has allowed placed the aP and the eP in great danger - Rc4 could take advantage of this}
( {12:+2.24} 40.Rc4 Kf6 41.Rxa4 Ke5 42.Ra6 Rxc5 43.Rxh6 Kd4 44.h4 e3 45.fxe3+ Kxe3 46.Re6+ Kf4 47.hxg5 Rxg5 )
40...Kf6
41.f3
( {12:+1.26} 41.f3 exf3 42.Kxf3 Ke5 43.Rc4 Kd5 44.Rxa4 Rxc5 45.Re4 Rc3+ 46.Re3 Rc4 47.Rd3+ Ke5 48.Ke3 )
41...exf3
42.Kxf3
( {13:+1.01} 42.Kxf3 Ke5 43.Rc4 Kd5 44.Rxa4 Rxc5 45.Re4 Rc1 46.Re8 Rh1 47.Rd8+ Ke5 48.Kg3 Ra1 )
42...Ke5
43.Ke3
{this is fine, but note that white is ahead in material so the policy in theory should be to exchange away}
43...Kd5
44.Rd3+!?
{not a 'good' move, but certainly providing a very strong temptation!}
( {13:+1.38} 44.Kd3 Rxc5 45.Rxc5+ Kxc5 46.Kc3 Kb5 47.Kd4 Kb6 48.Kc4 Kc6 49.Kb4 Kd5 50.Kxa4 Kc4 51.Ka5 )
44...Kxc5??
( {13:+0.14} 44...Ke5 45.Rd4 Rxc5 46.Re4+ Kd5 47.Kd3 Ra5 48.Rd4+ Ke5 49.Rc4 Kd5 50.Re4 Ra6 51.Rd4+ Ke5 52.Kc4 )
45.Rc3+
{now black loses the R and the game is pretty well over}
white ends up mating black several moves later.
ok summary of main ideas coming up in next post.
i couldn't fit more details in because it all became too long.
in splittingthepostship,
prad
summary of main ideas appear below.
look at the idea and relate it to the move number.
A. don't bring Q out too early eg move 4
B. doubling Ps of opponent is usually good idea eg move 5 presented that opportunity
C. N in center is usually better than B in center for reasons mentioned eg move 6
D. developing pieces usually preferable to pushing Ps eg move 7
E. don't overlook free material eg move 8
F. try to prevent enemy K from castling eg move 10
G. be careful that the piece you develop doesn't get embarrassed eg move 11
H. control files with Rs especially in center when possible eg move 15
I. make use of that file! eg move 17
J. don't give freebies (unless you have a very good reason) eg move 18
K. exchanges that don't gain anything may not be worth doing eg move 21
L. don't defend an attacked piece if the defender can perish eg move 23
M. doubled Rs on a file look mighty powerful! eg move 24
N. avoid splitting Ps unless you have a very good reason eg move 28
O. don't walk into forks without a really good reason eg move 30
P. centering the K in the endgame is a pretty good idea eg move 37
Q. double attacks are nice when opponent allows it eg move 40
R. when ahead in material, exchange away eg move 43
S. a bad move can be a good one sometimes! eg move 44
please note that the above are simply general principles as related to the game above.
they should not be considered dogma.
as spassky once said, in chess you have to know the rules and when to break them.
in friendship,
prad