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| IM Nazi Paikidze |
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| Move | N | Result | Elo | Players |
|---|---|---|---|---|
| Replay and check the LiveBook here |
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1.Nf3 g6 2.g3 c5 3.Bg2 Bg7 4.c4 Nc6 5.Nc3 via a somewhat unusual
move-order we have arrived at a Symmetrical English. Black will follow the
plan of using ...e5 to challenge for control of the center and break symmetry,
while White pursues a queenside strategy. d6 6.0-0 e5 this advance gives
Black a lock on d4 and greater central presence/control via her pawns. On the
other hand, it blocks the Bg7 and creates a hole on d5. 7.d3 this opens up
the c1-g5 diagonal for the bishop and also helps restrain a potential future ..
.e4 advance. Nge7 the standard place for the knight in this variation. The
knight, if placed instead on f6, would get in the way of both the Bg7 and the
f-pawn, which Black may play to f5 at some point. 8.a3 0-0 9.Rb1 a5 10.Bd2 White's dark-square bishop development in this line is somewhat problematic,
in that there is no obviously good square for it that does not also get in the
way of other pieces. Keeping it on c1 makes no sense, however, so placing it
on d2 is fine and the most common option. There it may also help control b4
when the time comes to make a pawn break there. Rb8 11.Ne1 initiating the
standard plan of repositioning the knight to c2, from where it is able to help
White force through the b4 break. This looks awkward at first glance, but in
reality the knight is doing little on f3 and moving it also opens up the Bg2
to good effect on the long diagonal. Be6 Black similarly has little scope
initially for her non-fianchettoed bishop, but there is a more obvious choice
of where to place it. From e6, it can help cover the hole on d5 in tandem with
the Ne7. Black's subsequent push of the d-pawn is also consistent with the
central strategy originally initiated by playing ...e5. 12.Nc2 d5 13.cxd5 Nxd5 this recapture is always done with the knight, otherwise White would
gain the advantage of the two bishops after exchanging with the Nc3. 14.Ne4
an uncommon move. Exchanging on d5 with the knight is more common, as is the
alternative Ne3. b6 the obvious way to protect the c5 pawn. 15.Ng5 Bc8
naturally Black wants to preserve the bishop and avoid giving White the two
bishops. 16.Ne3 a move that necessarily reflects an understanding of what
is happening on the squares g5 and b4. The game is still in the database,
which interestingly shows White scoring over 70 percent in the dozen games
available, although the position seems quite equal (including to the engine). Nxe3 16...Qxg5 17.Nxd5 Qd8 18.b4= 17.Bxe3 Nd4 here Black diverges
from previous games, which continued ...Bb7. The most recent example: 17...Bb7 18.Nf3 Kh8 19.Qd2 Re8 20.Rfe1 Qe7 21.Qc2 h6 22.Qc4 f5 23.Qh4 Qxh4 24.Nxh4 Kh7 25.Rec1 Rbc8 26.Kf1 Ba8 27.Rc2 Rf8 28.Nf3 f4 29.Bd2 g5 30.Bc3 b5 31.gxf4 gxf4 32.Rbc1 Rg8 33.Be1 1/2-1/2 (33) Lehmann,C (2100)-Borulya,E
(2293) Germany 2008 18.b4 White finally gets in the break with the b-pawn. cxb4 19.axb4 Bg4 19...a4!? is preferred by the engine. The pawn is
tactically defended, as Qxa4 would be followed by ...Nxe2. 20.b5 Bg4 21.Nf3 20.f3 this is a committal and seemingly antipositional move by White, who
temporarily shuts off the Bg2 and cuts off the f3 square from the Ng5. However,
it's more dynamic than an alternative like Re1. 20.Nf3!? 20...Bd7 21.Ne4 axb4?! although Black still has a passed pawn after this trade, having an
outside passed pawn on the a-file would be a greater advantage. 21...a4
is now an even stronger idea than before, since the passed pawn is protected
by the Bd7. 22.Bxd4 exd4 23.Qb3 White correctly is not in a rush to
recapture the pawn, choosing to develop her queen first in an effective manner.
Re8 lining up against the undefended e2 pawn and pinning the knight. This
also frees up the f8 square for a bishop retreat. 24.f4 interestingly this
appears to be White's only good move. It frees up the Bg2, most obviously, and
her other pieces are already optimally placed. 24.Qxb4? this would lift
the pin on the f-pawn, to White's detriment. f5 25.Nd2 Rxe2 24...Bf8 24...h6 would be a prophylactic move, taking away the g5 square from the
knight. 25.Ng5 another example of a patient master-level move. While Black
has protected the b4 pawn, her pawn structure in the center and queenside is
shattered and too vulnerable to protect in the long term. This means that
White need not worry about the material deficit. Instead, she now starts a
threat of her own against the weak f7 square. This threat trumps the previous
pin of the knight against the e2 pawn, which we therefore can say has been
tactically broken. Be6 an inaccuracy which allows White to gain some
traction. 25...Qf6 or ...Qe7 defends the f7 pawn without allowing the
minor piece exchange as in the game. 26.Bd5 Rxe2 27.Nxf7 Kg7= 25...Re7 is also possible. 26.Bd5 Be8 27.f5 Rxe2 28.Nxf7 Bxf7 29.Bxf7+ Kh8= 26.Nxe6 fxe6 in contrast with the above variations, Black no longer has the
threat of ...Rxe2 because of the pawn on e6. 27.f5 27.Bc6!? Re7 28.Qxb4
might be a simpler approach, regaining the pawn with the idea of pursuing play
on the queenside. In the game, White instead prefers to increase pressure on
the kingside. 27...gxf5 28.Rxf5 taking advantage of the pin on the a2-g8
diagonal. Rc8 the best way to improve Black's position. She can't do
anything about all of the air in front of her king, but she can activate the
rook on the open file. 29.Bd5 an excellent, master-level move. White
increases the pressure on the diagonal in the most effective way, while the
bishop cannot be taken for tactical reasons. Qd6 Black appears to be trying
to hold onto the extra material, in this case the b4 pawn, rather than placing
her pieces on the most effective squares. 29...exd5? 30.Rxd5 and Black
will lose material, due to the discovered double check threat. 29...Qd7!? 30.Rg5+ Kh8 31.Be4 the bishop now needs to be moved, with the tactical
threat of discovered check no longer there. Rc5 32.Rg4 exchanging on c5
would just help Black get her pawn structure in order. b5 I'm not sure of
the point of this, which may simply be a waiting move. If so, bringing the
rook back to c7 would create fewer potential problems, as we'll see shortly. 33.Rf1 bringing another major piece into the kingside attack. Rc3 34.Rf7
threatening mate on h7. Rc7 now we see why this would have been better
played earlier, as Black is simply a tempo down. 35.Rf5 again using
tactical themes involving the e6 pawn. The pawn remains pinned, but this time
against the mating square g8 rather than the Black king. Bh6?! under
pressure, Black finally cracks. She was probably focused on getting rid of the
mate threat on g8, which is now covered by the Re8. She also probably saw the
threats she could make after placing the bishop on e3, but White is able to
easily parry them. 35...Rc5 36.Rxb5± now we see another drawback of
Black's move 32. She now has no material compensation for her positional
difficulties. Be3+ 37.Kg2 Qf8 38.Bf3 shutting down any threats on the
f-file. Rc1 39.Qxb4 ignoring the check on g1. This is also a characteristic
of master-level play, as amateurs too often are afraid of checks. Rg1+ 40.Kh3 emotionally these kind of moves can feel awkward and scary, as the king has
very limited squares. However, calculation shows that Black has run out of
threats. Qf7? it's not obvious at first glance why this is bad, although
White is able to quickly achieve a won position. Black does not realize that
she has effectively given up control over the 8th rank. 40...Qxb4 is
judged best by the engine, although it will likely result in a winning endgame
for White. 41.Qd6+- and there is nothing Black can do to avoid mate or
major material losses. The immediate threat is Qe5+, while the queen can also
support exchanging off the Re8. 41.Rb8 is probably the easiest winning
continuation to spot, although the text move is more elegant and decisive. The
problem for Black is that her back rank is under-defended, given the control
of the Rg4 over the g-file and Black's king in the corner. Qh5+ 42.Rh4 Qf5+ 43.g4 Qf7 44.Qb7 Qxb7 45.Rxe8+ Kg7 46.Bxb7+- 41...Qf6 41...Bh6 42.Qxd4+ Bg7 43.Qxg1+- 42.Rb8 Qh6+ 43.Rh4 Qg6 44.Rxe8+ Qxe8 unfortunately
for Black, getting rid of the 8th rank threat has now left her vulnerable
again on the a1-h8 diagonal. 45.Qe5+ Kg8 46.Rg4+ 1–0
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| White | EloW | Black | EloB | Res | ECO | Rnd |
|---|---|---|---|---|---|---|
| Paikidze,N | 2333 | Melekhina,A | 2235 | 1–0 | A37 | 7 |
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