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| Move | N | Result | Elo | Players |
|---|---|---|---|---|
| Replay and check the LiveBook here |
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1.e4 c5 2.Nc3 d6 3.f4 Nc6 4.Nf3 g6 5.Bb5 Bd7 6.0-0 Bg7 7.Bc4 this
seems like a bit of a waste of time in the opening, especially after the next
move. Presumably it was done to preserve the bishop from exchange. Na5 8.Be2 Nf6 this looks like it makes the knight a target for an advance of the e-pawn,
but that would not turn out particularly well for White. 9.Qe1 at around 48
percent, this scores better than anything else for White in the database, but
it's still not a good thing. Black has fully equalized already while White
continues to lose time in the opening. 9.e5 dxe5 10.Nxe5 10.fxe5?! Ng4 10...0-0= and Black has a comfortable game. 9...Nc6 10.Bc4
inviting a repetition of moves, although Black can do better. Nd4 10...0-0!? the engine suggests castling first, which looks safer. 11.d3 Nd4 11.Qh4?! this doesn't work and I'm not sure what White was looking to do here by
offering the c2 pawn as a sacrifice. Even simply castling in response is fine
for Black. 11.Nxd4 simplest appears best here. cxd4 12.e5 dxc3 13.exf6 Qb6+ 14.Rf2 Bxf6= 11...b5 an interesting idea that further complicates
the game and keeps the tension up, which is probably what Xiong wanted. 11...Nxc2 12.Rb1 Nd4 and White doesn't have any real threats. For example 13.Ng5? 13.b3 13...d5 13...e6 is also sufficient 14.Nxd5 Nxd5 15.f5 15.Nxh7? the knight is pinned here and Black now has a free hand. Nb6 16.b3 Nxc4 17.bxc4 Bc6-+ 15...Bf6-+ 11...0-0 12.f5!? should be
OK for Black, but gives White at least the appearance of some initiative. 12.Nxd4 cxd4 13.Nxb5 Qb6 Black has (temporarily) invested a pawn, but has the
initiative in return. 14.a4 a6 15.a5 Qc6 16.Na3 Nxe4 now Black has his
pawn back and a favorable position, while White's pieces are uncoordinated and
he lacks an obvious plan to make progress. 17.d3 Nf6 18.Nb1 an excellent
illustration of how time in the opening and early middlegame can be valuable.
The knight has journeyed back to its original square, with associated tempo
loss, while Black can now make progress in the center. 18.Bb3!?
would clear the c4 square for the knight instead. 18...d5 19.Bb3 Qc5
this avoids having White play Ba4. While d6 seems like a more useful square
for the queen, being less limited, Xiong no doubt had the next knight maneuver
to e3 in mind, which the queen supports. 20.Re1 Ng4 21.Re2 Ne3 Black would
be quite happy to have White capture the knight, thereby undoubling the Black
d-pawns and giving him a passed pawn on e3. 22.h3 another time-wasting move.
22.Nd2!? White really needs to get more of his pieces into the game. 22...0-0 White now has no prospects on the kingside and it's about time to
get the king to safety away from the center. 23.Qe1 Rab8 activating the
rook; Black wants to play with all of his pieces. This may seem to ignore
White's last move, which adds pressure to the Ne3, but it still cannot be
taken without benefiting Black. 24.Ra3 again a move illustrating how
awkward White's position is. 24.Bxe3 dxe3 opening up the long diagonal and
the d4 square for the Bg7 25.Rxe3? Bd4-+ 24...Rfc8-+ by this point
White is under huge pressure, which will simply get worse, and can do nothing
about it. 25.Kh1 moving off of the g1-a7 diagonal and taking away the ...
Bd4 tactic, but it still doesn't help much. Bf5 26.Bxe3 dxe3 27.Rxe3 Bxb2 28.Ra2 Bd4 Black can again safely ignore White's threat to pick up a pawn,
in this case on e7. 29.Rf3 29.Rxe7 Bf2! and now wherever the queen
moves, the Re7 will be left hanging, or White opens himself to back rank
problems. 29...Bxd3 would also be sufficient, as the Bb3 would be hanging
after a recapture on d3 30.Qe2 30.Qd2 Rxb3 31.cxb3 Qxe7 32.Qxf2 Rc1+ 30...Rxb3 winning the piece, as if 31.cxb3? Qc1+-+ 29...h5 stopping
g4 to kick the Bf5 30.Nd2 White finally gets all of his pieces developed,
on move 30. Bc3 31.Qf2 e6 an instructive decision. Black heads for the
endgame, which he must be confident of winning, as he will pick up the
indefensible a5 pawn in the process. 32.Qxc5 Rxc5 After the exchange of
queens Black wins the a-pawn and the game is practically over. 33.Nf1 Rxa5 34.Rxa5 Bxa5 Black has the outside passed a-pawn, the two bishops, and a
well-placed rook, which should (and do) lead him to victory from this point on.
35.Kh2 Bc3 36.g3 a5 passed pawns must be pushed! 37.Ne3 designed to
support the g-pawn advance Rb4 Black can also just make a waiting move with
the bishop here, such as ...Bg7. This would remove White's subsequent threat
along the third rank with the rook, although it perhaps doesn't matter in the
end. 38.g4 hxg4 39.hxg4 Black can now play this several different ways.
The problem for White is that his bishop is trapped after ...a4 Bxd3 40.Ng2 a4 41.Bxa4 Be4 42.Rxc3 Rxa4 Black is still winning comfortably after the
end of the sequence - remaining a pawn up, with a strong bishop vs. knight,
and one pawn island versus two. However, those of us with lesser endgame
technique might not have chosen this particular path. 43.Ne1 Ra1 44.Re3 Rc1 the ideal spot for the rook, behind White's isolated pawn. 45.Re2 Kf8
time to bring the king into the game. 46.Kg3 Ke7 47.g5 Kd6 48.Kf2 Bf5 49.Nd3 Rh1 50.Ne5 Rh2+ once the rooks come off, the win becomes more trivial
for Black. 51.Ke3?! this allows the following tactic 51.Kf3 Rxe2 52.Kxe2-+ 51...d4+ 52.Kd2 Rxe2+ 53.Kxe2 Kd5 compared with the above
variation, Black is significantly ahead with the d-pawn and his king position
in the center. Although the f-pawn will fall, this doesn't affect Black's
defense against the White pawns, as Black's king will penetrate. 54.Kd2 Ke4 55.Nxf7 Kxf4 56.c3 d3 White could simply resign at this point, but
apparently decides to play on in the hopes of a blunder by his opponent. 57.Nd6 e5 58.Nc4 e4 Black has two connected passed pawns in the center, will
grab the g5 pawn giving him a third passed pawn, and Black's bishop covers the
c8 queening square for White. 59.Ne3 Kxg5 a minor piece exchange is fine
for Black, since the White king can't cover all of the passed pawns. 60.Ke1 Bg4 61.Nd5 Kf5 62.Kd2 Ke5 63.Ne7 g5 64.Ke3 Bf3 65.c4 g4 passed pawns
(especially outside ones) must be pushed! 66.Ng6+ Kd6 67.Nh4 Kc5 68.Nf5 Kxc4 69.Kd2 is White playing for stalemate now? Hardly seems sporting. Kd5 70.Ke3 Ke6 71.Ng3 Ke5 72.Nf1 Kf5 Black's king now runs around the wing to
escort his outside passed pawn. 73.Ng3+ Kg5 74.Nf1 Kh4 75.Kf2 Kh3 76.Ke3 g3 77.Nd2 g2 78.Kf2 0–1
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| White | EloW | Black | EloB | Res | ECO | Rnd |
|---|---|---|---|---|---|---|
| Bersamina,P | 2402 | Xiong,J | 2633 | 0–1 | B23 |
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