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(1) Donnelly,M.J - Mason,B [E88]
Coventry League Divison 1, Board 1, 1994
[M.J.Donnelly]
1.d4
Nf6
2.c4
g6
3.Nc3
Bg7
4.e4
d6
5.f3
0-0
6.Be3
[The Kings Indian Defence was Black favourite opening hence in order to vary matters I tried 6.Bg5
against Barry in a later game which continued as follows: 6...c5
7.d5
Nbd7
8.Nh3
a6
9.Qd2
Re8
10.Be2
Nf8
11.Nf2
Bd7
12.a4
Qc8
13.0-0
e5
14.f4
h6
15.Bxf6
Bxf6
16.fxe5
Bg5
17.Qd3
Rxe5
18.Qf3
f5
19.Nd3
Re7+/=
Donnelly-Mason, Whoberley Summer Cup 1994.] 6...e5
The Classical Samisch variation at one time the prefered line adopted by Kasparov. [More recently the gambit line with 6...c5 has seen a lot of attention. Originally thought bad it has now been realised Black gets good play for the offered c5 pawn. For example 6...c5
7.dxc5
(7.Nge2
is interesting but Black can transpose into a King's pawn opening, the Maroczy variation of the sicilian Dragon after 7...cxd4
8.Nxd4
Nc6
) 7...dxc5
8.Qxd8
Rxd8
9.Bxc5
Nc6
10.Nd5
Nd7!
] 7.d5
a6!?
This may be too commital for instance since it rules out any Na6 lines for Black. Alternatives for Black are [7...Nh5
; 7...c6
; 7...c5
] 8.Bd3
[8.Qd2
Is the alternative development plan for example Haba-Luther, 4th LGA Premium Cup 2007 went 8...Nbd7
9.Nh3
Nc5
10.Nf2
Bd7
11.b4
Na4
12.Nxa4
Bxa4
13.Be2
Nh5
14.0-0
f5
15.Nd3
f4
16.Bf2
g5
17.c5
and characteristic White on the queens-side versus Black on the kings-side attacks are taking place.] 8...c6
9.Nge2
cxd5
10.cxd5
b5
This seems a bit premature. [10...Nbd7
11.0-0
Nh5
12.Qb1
b5
13.b4
Nb6
14.a4
is an old analysis by Polugayevsky ; Black cant transpose into the normal line here with 10...Nh5
11.0-0
f5
12.exf5
gxf5
due to 13.Kh1
Nd7
14.g4
and Black has problems in bringing his QKt to f6 as is normal in this line.] 11.0-0
[Strangely enough my namesake, the USA lady otb and correspondence player, had a very similar game in this line that went 11.b4
Nbd7
12.a4
bxa4
13.Rxa4
Nb6
14.Ra5
Bb7
15.0-0
Qc7
with an eventual draw in Mayer-(Ruth) Donnelly, Harrisonburg op 1990.] 11...Nbd7
12.b4
Fixing the pawn stucture on the queens-side so that it can be attacked by a4. 12...Nb6
[12...Nh5
13.Qc2
Bb7
14.Rac1
Rc8
15.g4
Nf4
16.Qd2
g5
17.a4
bxa4
18.Nxa4+/=
Lopes-Amadasum, Moscow 1994.] 13.a4
Nxa4
This leaves black with a weak a6 pawn. To some extent this is compensated for by Whites isolated b4 pawn. The latter is, however, harder to attack by Black hence White has the edge here. [13...Nc4
is a better try shielding the b-pawn somewhat.] 14.Nxa4
bxa4
15.Rxa4
Qd7
16.Qb3!?
[16.b5
was possibly even more precise since after 16...a5
17.b6
Bb7
18.Qb3
then Rfa1 follows and the a5 pawn falls.] 16...Bb7
17.Rfa1
Qc8
Too passive-some play could be generated for the pawn with [17...Nh5
18.Bxa6
Bxa6
19.Rxa6
Rxa6
20.Rxa6
Qb5
21.Ra2
f5
] 18.Qa2
Rd8
19.Bxa6
Bxa6
20.Rxa6
Rb8
21.Rb1
White's plan is to simply push the b-pawn. 21...Ne8
22.b5
f5
Attempting to generate some counter-play on the king-side. This idea needed treating with respect since both players with about 2 minutes on the clock only were already getting very short on time in reaching the first time control on move 30. 23.Rc6
Qb7
24.Rb6
Qd7
25.Rxb8
Rxb8
26.b6
fxe4
27.fxe4
Nf6
Black has succeded in generating a threat and at the moment would appear to have the b-pawn blockaded. 28.Ng3
[Still winning but even stronger was to return the material to allow the pawn to get the the 7th rank. 28.b7
Nxe4
29.Qa8
Qd8
30.Qa4
Nc5
31.Bxc5
dxc5
32.Qc6
and White has a second passed pawn to push.] 28...Ng4
29.Qe2?!
[29.Nf1
Nxe3
30.Nxe3
was stronger when the knight can get to c4, hitting d6 and also with potential to reach a5/c6 to assist the pawn forward.] 29...Nxe3
30.Qxe3
Bf6
Into the 15 minute quick play finish. Black is just a pawn down and Whites knight will take some time to get back into the game. 31.Nf1
Bd8
32.Nd2
Qa4
[32...Qc8!?
keeping control of b7 and c4.] 33.b7
Qa6
[33...Qc2
is more active as now the knight does reach c4.] 34.Qb3
Qe2
35.Nc4
Rxb7
A reasonable practical chance where Black jettisons the exchange. [Instead if 35...Qxe4
36.Nxd6
Qd4+
37.Kh1
e4
38.Qb5
and wins easily due to Black's exposed king plus the potential to push the d6 pawn.] 36.Qxb7
Qxc4
37.Rf1
The problem for Black is his Bd8 has no secure post and his king is still exposed. 37...Qc5+
38.Kh1
Qc7
39.Qb5
Qe7
40.Qb8
Kg7
41.Rb1
Kh6
42.Qb3
Qc7
43.Qh3+
Kg7
44.Rf1
Bf6
45.Qe6
Qe7
46.Qxe7+
Bxe7
Black seems to have made some progress here and its not immediately clear how White can breach the defences. However its here the concept of using ones king comes to the fore. Whites plan is to tie up the Black king by attacking the bishop with the rook and also tie the bishop to the defence of the d6 pawn. Then White will advance his king right into the heart of Blacks position via the white squares (eg to c6 or d7 or e6 as required) and add pressure to the attacked bishop or against the weak d6 pawn. Even if Black gets the bishop to the active square c5 then the same plan of pressuring c5/d6 would win. 47.Rc1
Kf6
48.Rc7
h6
49.g3
g5
50.Kg2
g4
Black cannot achieve any real threats here such as getting the bishop to g1 and taking on h2/g3 and push the g-pawn. 51.Kf2
Kf7
[51...Bd8
52.Rc6
Ke7
53.Ra6
and the bishop cannot become active due to the rook penetrating on the king-side and snatching pawns.] 52.Ke3
Kf6
53.Kd3
Kf7
54.Kc4
Kf6
55.Kb5
Kf7
56.Kc6
Kf6
57.Rd7
The plan, began on move 47, is achieved and Blacks position collapses. 57...Kf7
58.Rxd6
[58.Rxd6
Bxd6
59.Kxd6
Ke8
60.Kc7
Black is unable to prevent the d-pawn queening.] 1-0
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