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Huynh Mai Phuong Dung vs Thi Thanh An Nguyen
ch-VIE Prelim w (2005), Hue VIE, rd 7, Apr-08
Sicilian Defense: Najdorf Variation (B95)  ·  1-0


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Kibitzer's Corner
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May-26-17  barryh1976: Rxf5+!!
Premium Chessgames Member
  wtpy: Rf5 is pretty obvious but I had to think a bit to find 31 Rh3, the quiet move that demonstrates black's helplessness.
May-26-17  Walter Glattke: Black gets one rook more with 31.-Qe7
32.Qg6+ Kf8 33.Rf3+ Bf6 34.Rxf6+ Qxf6
May-26-17  claudi: I agree that 29.Rxf5+ is the best move
May-26-17  Cybe: 28... d:e5!
Premium Chessgames Member
  rodchuck: Hoo Phlung Dung?
May-26-17  Walter Glattke: White has a rook more after 30.-Ke7
31.Qf7+ Kd8 32.Qxf8+ Kd7 33.Bg4+ Kc6
34.Qxc8 only pupil level, no real puzzle, no mate final.
Premium Chessgames Member
  gofer: It always suprises me how a couple of co-ordinated pieces can out-manoeuvre their opponents even when they are significantly out-numbered. This POTD is again one such case.

I imagine we all saw...

29 Rxf5+ exf5 (Ke7 Rf7+ )
30 Qxf5+ Ke7
31 Qf7+ Kd8
32 Qxg8 Kd7
33 Bg4+ Kc6
34 Bxc8

But what about 30 ... Kg7?

<29 Rxf5+ exf5>

<30 Qxf5+ Kg7>

Okay, we have a strong attack but no obvious entry point for our last attacker Rd3! So what next?! The answer a massive <GOOT>!

<31 Rh3 ...>

click for larger view

White threatens Qg5+, Qg6+ and Qf7+ - but also Bg6 and Bf7!

White controls all the white squares around the king and black needs to find a defence, but there are so many tries to look at!

Bf6/Rgh8/Rgf8/Rge8/Rgd8/Rcf8/Rcd8/Rce8/Qc3/Qb7/Q- d7/Qe7/Kh6/Kh8/d5

After that there are probably <Fritz> defences, that we might never consider... ...perhaps <31 ... Bf4>?

Lots to analyse. Could I swear to have looked at them all? Nope.

Would I play the move anyway!? Well after finding <31 Rh3> I would be pretty confident, may be not 100% certain, but pretty confident...

May-26-17  Walter Glattke: Ah, the finesse here is 31.Rh3, so 30.-Kg7 would win with all other moves, 31.Qg5+ Kh8 32.Bg6 Rg7 etc.
Premium Chessgames Member
  morfishine: got the first two moves
May-26-17  Moszkowski012273: Got it!
May-26-17  bla bla: 14...Na5?? whyyy
May-26-17  bla bla: just duplicating pedestrians
May-26-17  bla bla: is not it?
Premium Chessgames Member
  agb2002: The material is identical.

Black threatens Qxc2.

White can take advantage of the weak light squares around the black king with 29.Rxf5+:

A) 29... exf5 30.Qxf5+

A.1) 30... Ke7 31.Qf7+ Kd8 32.Qxg8+ Kd7 (32... Ke7 33.Qf7+ Kd8 34.Qe8#) 33.Bg4+ Kc6 34.Bxc8 + - [R+2P].

A.2) 30... Kg7 31.Rh3

A.2.a) 31... Qxc2 32.Qf7+ Kh6 (32... Kh8 33.Bg6#) 33.Bd1+ Kg5 34.Rh5#.

A.2.b) 31... Rc(g)f8 32.Qg6+ Kh8 33.Be2+ Qh7 34.Q(R)xh7#.

A.2.c) 31... Qc3 32.Qg6+ Kh8 (32... Kf8 33..Qf7#) 33.Bd3#.

A.2.d) 31... Rgd8 32.Qg6+ Kf8 33.Rf3+ and mate in three.

B) 29... Ke7 30.Rf7+ Kd8 (30... Ke8 31.Rxc7+ wins) 31.Qh4+ and mate soon.

C) 29... Kg7 30.Rxe5 (probably better than 30.Rf7+ Qxf7 31.Bxf7 Rxc2)

C.1) 30... dxe5 31.Qxe6 (with the double threat Rd7+ and Rg3+)

C.1.a) 31... Qxc2 32.Rd7+ and mate in two.

C.1.b) 31... Rcd8 32.Rg3+

C.1.b.i) 32... Kf8 33.Rxg8#.

C.1.b.ii) 32... Kh7 33.Bg6+ and mate soon (33... Kg7 34.Bf7+; 33... Kh6 44.Rh3+ Kg7 45.Rh7+ Kf8 46.Rf7+).

C.1.b.iii) 32... Kh8 33.Qf6+ Rg7 (33... Kh7 34.Bg6+ and mate in three) 34.Rxg7 Qxg7 (34... Rd1+ 35.Bxd1) 35.Qxd8+ wins.

C.2) 30... Qxc2 31.Rg3+ Kf8 (31... Kf6 32.Q(R)xe6#) 32.Rxg8+ Kxg8 33.Rg5+ Kf8 34.Qf3+ Qf5 (34... Ke7 35.Rg7+ Kd8 36.Qf8#) 35.Rxf5+ wins.

May-26-17  Iwer Sonsch: 29.Rxf5+ exf5 (what else?) 30.Qxf5+ Ke7 (30...Kg7 31.Qg6+ Kf8 32.Rf3+ Ke7 is no better) 31.Qf7+ Kd8 32.Qxg8+ wins back the rook.


May-26-17  Iwer Sonsch: Oh, I missed that 30...Kg7 31.Qg6+?? Kh8 32.Qh6+ was not mate.
Premium Chessgames Member
  Richard Taylor: Good attack by White. I missed 30. ... Kg7 but my excuse is I was a bit drowsy after a big dinner (and of course, OTB, coffeed up, I would have found everything, given I had enough time...well, I would have found "everything" in a correspondence game, in the old days,...well...I would have found it all with a computer...) and I then found (without a machine), on going back for a rethink the Rh3 idea. Which was the key move. Very clever play by White.

A ferocious attack by White...a typical Najdorf with both players trying to attack each other....White threw everything at Black and perhaps Black had defence somewhere...but entertaining chess...!

Premium Chessgames Member
  malt: 29.R:f5+ ef5 30.Q:f5+ Ke7 31.Qf7+ Kd8 32.Q:g8+ Kd7 33.Bg4+ Kc6 34.Q:c8 or 34.B:c8
May-26-17  et1: Rh3 was the trick
Premium Chessgames Member
  thegoodanarchist: <rodchuck: Hoo Phlung Dung?>

LOL, that was hilarious!

Premium Chessgames Member
  kevin86: White's offense is there, black's defense is not!
Premium Chessgames Member
  kevin86: Hippo game is highly ineffective for black.
Premium Chessgames Member
  whiteshark: Black missed the hedgehog spirit


Premium Chessgames Member
  ChessHigherCat: 25. Nd5 was some dung well flung! I guess if exd5 Qxf5, with thum heavy thit an nguyen
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