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Richard Rapport vs David Anton Guijarro
Tradewise Gibraltar (2016), Catalan Bay GIB, rd 7, Jan-26
Formation: King's Indian Attack (A07)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Feb-01-16
Premium Chessgames Member
  patzer2: White's decisive mistake was 28. Qd3? allowing 28...Nb6! with the triple threat 29...Nxd7 , 29...Qf2+ 30. Kh1 Qxg2# and 29. Bxb6 Qxb6+ 30. Kh1 Qf2 31. Qf3 Nxg3+ 32. Kh2 Rh8+ 33. Qh5 Rxh5#.

Earlier, White can improve with 25. Rd5 Nc4 26. Bc5 Qg5 27. Bxf8+ Rxf8 28. Rd3 = (0.00 @ 20 depth, Deep Fritz 15).

P.S.: Perhaps (28...?) would make for a good Thursday puzzle.

Feb-03-16
Premium Chessgames Member
  whiteshark: David Anton survived Richard Rapport's attempts of bewilderment and hit the Hungarian on the break.
May-18-16  bachiller: Atom Ant!
May-18-16  7he5haman: I'm not getting it. Why not 30.Rxf6?
May-27-16  blazerdoodle: I find it curious that the triple threat seems to have a response.

Doesn't 29.Bxb6 stop the f2 hit?

29...Qb6+, sure he has a check.

30.Kh2 Qf2 31.Rd2 and what does black do 31...Rd2 32.Qd2 Qd2 33.Rd2

Or is their something obvious I've missed?

Jun-09-16  grootbrabant: @blazerdoodle

You overlooked 30...Rh8 with a decisive attack on the white king.

Jun-06-17  crwynn: Or even 29...Qxb6+ 30.Kh2 Nf4
Jul-16-17  borabc: 30. Rxf6 is . Why Qxd7 ?
Jul-16-17  diagonalley: <drollere> ... watch out for white's QB!!
Jul-16-17
Premium Chessgames Member
  morfishine: 29.Bxb6 Qxb6+ 30.Kh1 Qf2 31.Qf3 (or 31.Rg1 Nxg3+ 32.Kh2 Rh8#)...Nxg3+ 32.Kh2 Qxf3

Yikes

*****

Jul-16-17  Walter Glattke: 29.Bxb6 Qxb6+ 30.Kh2 Qf2 31.Rg1 Rh8 32.Rxf7+ Qxf7 33.Rf1 Nf4+ 34.Kg1 Nxd3 35.Rxf7+ Kxf7 or
30.Kh1 Qf2 31.Qf3 Nxg3+ 32.Kh2 Rh8+
33.Qh5 Rxh5#
Jul-16-17  bubuli55: I thought White is better off taking the Q with 30.Rf6
Jul-16-17  RandomVisitor: After 28...Nb6 white has no good options, due to multiple threats at multiple points, especially the weak f2 square:


click for larger view

Stockfish_17061704_x64_modern: <6 hours computer time>

<-6.47/39 29.Rf1 Qc6> 30.Rd8 Rxd8 31.Qxd8 Qc5+ 32.Kh2 Qe3 33.Qh4 Qe2 34.Rg1 Nd7 35.a4 Rb7 36.g4 Nf4 37.Bf2 Rb2 38.g5 Qxf2 39.Qxf2 Rxf2 40.Kg3 Ra2 41.Bf3 Rxa4 42.Re1 Nc5 43.Kg4 Rc4 44.Re3 Nd5 45.Re1 Nxc3 46.Rc1 N5xe4 47.Bxe4 Rxe4+ 48.Kf3 Rf4+ 49.Kg2 Rg4+ 50.Kf2 Ne4+ 51.Kf3 Rf4+ 52.Ke2 Nxg5 53.Kd3 Ra4 54.Kc3 Ne4+ 55.Kb2 Rb4+ 56.Ka3 Rb5

-8.09/39 29.Rd2 Rxd2 30.Qxd2 Nxd7 31.Bf2 Qe6 32.a4 Ra8 33.Qd5 Rxa4 34.Qxe6 fxe6 35.Kh2 Nhf6 36.Bf3 Nxe4 37.Bxe4 Rxe4 38.Kg2 Ra4 39.Be3 Ra3 40.Bf2 Rxc3 41.Be1 Rc2+ 42.Kf3 Nf6 43.Ba5 Ra2 44.Bd8 Ra3+ 45.Ke2 Rc3 46.Ba5 Rxg3 47.Kf2 Ne4+ 48.Ke1 Rd3 49.Bc7 Ra3 50.Ke2 Rc3 51.Ba5 Rg3 52.Be1 Rb3

-11.58/39 29.Qf3 Nxd7 30.a3 Ra8 31.Be3 Qxf3 32.Bxf3 Ndf6 33.g4 Ng3 34.Re1 Rc2 35.Bc1 Rh8 36.g5 Nfxe4 37.Be3 Rch2 38.Ba7 Rh1+ 39.Bxh1 Rxh1+ 40.Kg2 Rxe1 41.Bb8 Re2+ 42.Kf3 Rf2+ 43.Ke3 Rf5 44.Kd3 Rxg5 45.a4 Rf5 46.Kc4 f6 47.a5 Rf3 48.Kb4 Rxc3 49.a6 Rc1 50.a7 Ra1 51.Kb3 Nf5 52.Kb4 Ra6 53.Kc4 Ra4+ 54.Kd3 Nc5+ 55.Kd2 Ng3 56.Kc3 Nce4+ 57.Kc2 Ra3 58.Kb2 Ra4

-11.86/39 29.Qf1 Nxd7 30.Rxd7 Qc6 31.Qd3 Ra8 32.Qd5 Rb1+ 33.Bf1 Qxd5 34.exd5 Nxg3 35.Rc7 Nxf1 36.Kf2 Rh8 37.Ke2 Rh3 38.d6 Rh2+ 39.Kd3 Rd2+ 40.Kc4 Rxd6 41.Kc5 Rd3 42.c4 Nd2 43.Rc8 Ne4+ 44.Kc6 Rd6+ 45.Kc7 Ra6 46.Be3 Ra4 47.c5 Re1 48.Re8 f6 49.Re7+ Kf8 50.Bd2 Nxd2 51.Re6 Ne4 52.Rb6 Rxa2 53.c6 Rc2 54.Kd7 Kg7 55.Ke8 Re3 56.Rb7+ Kh6 57.Rb6 Rec3 58.Rb4 f5 59.Kf7 Rxc6

-16.30/38 29.Qe3 Nxd7 30.a4 Ra8 31.Rf1 Qe6 32.a5 Qg4 33.Rf2 Rb1+ 34.Rf1 Rxf1+ 35.Kxf1 Qd1+ 36.Kf2 Nhf6 37.Qe2 Qxe2+ 38.Kxe2 Rxa7 39.Kd3 Nc5+ 40.Kc4 Rxa5 41.Bh3 Nfxe4 42.Kd5 Nxc3+ 43.Kc4 N3e4 44.Kb4 Ra4+ 45.Kb5 Ra3 46.Kb6 Rxg3 47.Bf1 Rf3 48.Bg2 Rb3+ 49.Kc7 Rg3 50.Bh1 Rg1 51.Bf3 Rf1 52.Bg2 Rc1 53.Kc8 Rc3 54.Bh1 Nd3+ 55.Kb7 Ng3 56.Bc6 Nc5+ 57.Kc7 Nge4 58.Kb6

-17.90/38 29.Qd2 Rxd2 30.R7xd2 Nc4 31.Rc2 Nxg3 32.Bf2 Qg5 33.Bc5 Rh8 34.Rd3 Qh4 35.Ba7 Nxe4 36.Kf1 Qf4+ 37.Kg1 Ncd2 38.Rcxd2 Nxd2 39.Re3 Qh2+ 40.Kf2 Ra8 41.Re2 Qf4+ 42.Ke1 Rxa7 43.Bd5 Nf3+ 44.Kf1 Nh2+ 45.Ke1 Qf1+ 46.Kd2 Rd7 47.c4 Nf3+ 48.Kd3 Ng1 49.Kc2 Qxe2+ 50.Kb3 Qd2 51.a4 Ne2 52.a5 Qxa5 53.Kb2 Qc3+ 54.Kb1 Qb3+ 55.Ka1

Jul-16-17  Pasker: I was wondering why this simple mate in two is an insane puzzle until I saw the little guy sitting on on a7 :-)
Jul-16-17
Premium Chessgames Member
  morfishine: Its very unusual for Rapport to become inveigled in a position like this

*****

Jul-16-17  JTV: 28...Nb6 was an excellent move in setting up a poisoned knight. However, after 29.Rf1, black makes a very lousy move, 29...Nxd7 and white fails to sack the queen. A very poorly played game from both sides...
Jul-16-17
Premium Chessgames Member
  Jimfromprovidence: Interesting side puzzle after 28...Nb6 29 Rf1 Qc6 30 Bxb6.


click for larger view

Black to play and win.

Jul-16-17  devere: <JTV: 28...Nb6 was an excellent move in setting up a poisoned knight. However, after 29.Rf1, black makes a very lousy move, 29...Nxd7 and white fails to sack the queen. A very poorly played game from both sides...>

There is nothing wrong with 29...Nxd7 (although 29...Qc6 also wins). After 30.Rxf6 Nhxf6, material may temporarily be equal but Black has a decisive positional advantage.


click for larger view

Stockfish 8 rates the position as -5.19 at depth 45.

Jul-16-17
Premium Chessgames Member
  agb2002: Black has two knights for the bishop pair and a pawn.

White threatens Qxc4.

The bishop on a2 controls f2. White's threat and this detail suggest 28... Nb6:

A) 29.Bxb6 Qxb6+

A.1) 30.Kh2 Qf2 (30... Rh8 31.Rxf7+ looks bad for Black, another option is 30... Nf6, threatening Rh8+ and Nxd7)

A.1.a) 31.Rg1 Nf4

A.1.a.i) 32.gxf4 Rh8+ 33.Qh3 Qxf4+ 34.Kh1 Rxh3+ 35.Bxh3 Q(R)h2#.

A.1.a.ii) 32.Rxf7+ Kxf7 33.Qd7+ (33.Rf1 Qxg2#; 33.gxf4 Rh8+ as above) 33... Kg8 34.gxf4 Qxf4+ with the exchange for a pawn loks very good for Black.

A.1.b) 31.Qf1 Qxg3+ followed by Nf4 looks winning.

A.2) 30.Kf1 Qf2#.

A.3) 30.Kh1 Qf2 looks similar to A.1.

B) 30.Rf1 (30... Nxd7 31.Rxf6 Ndxf6 unclear) 30... Qc6

B.1) 31.Bxb6 Qxb6+ 32.Kh2 (32.Kh1 Nf6) 32... Nf6 with the double threat Rh8# and Nxd7 looks winning.

B.2) 31.Rd6 Qc5+ followed by Rh8 seems to be very good for Black.

Jul-17-17
Premium Chessgames Member
  patzer2: Here's a deep move-by-move look at Sunday's 28...Nb6!! solution with Stockfish 8 (copy and paste to the Stockfish 8 engine for further analysis):

[Event "Tradewise Gibraltar"]
[Site "Catalan Bay GIB"]
[Date "2016.01.26"]
[Round "7.4"]
[White "Richard Rapport"]
[Black "David Anton Guijarro"]
[Result "0-1"]
[ECO "A07"]
[EventDate "2016.01.26"]
[PlyCount "82"]

1.g3 c5 2.Bg2 Nc6 3.e4 g6 4.d3 Bg7 5.f4 d6 6.Nh3 Nf6 7.O-O O-O 8.Nf2 Nd7 9.Nd2 Rb8 10.h4 b5 11.h5 b4 12.Nf3 Nf6 13.hxg6 hxg6 14.Nh4 Nh5 15.Nf5 e5 16.fxe5 dxe5 17.c3 c4 18.Nxg7 Kxg7 19.Qf3 cxd3 20.Nxd3 bxc3 21.bxc3 Ba6 22.Rd1 Bxd3 23.Rxd3 Qe7 24.Be3 Na5 25.Rad1 Nc4 26.Rd7 Qf6 27.Bxa7 Rb2 28.Qd3 Nb6 $3 29.Rf1 ( 29.Rd2 Rxd2 30.Qxd2 Nxd7 31.Qxd7 Nxg3 32.Qg4 Qa6 33.Bc5 Rc8 34.Qxg3 Rxc5 $19 ) ( 29.Bxb6 Qxb6+ 30.Kh2 Rh8 $19 )
29...Nxd7
( 29...Qc6 30.Rd8
( 30.Re7 Qc5+ 31.Kh1 Qxe7 $19 )
30...Qc5+ 31.Kh2 Rxd8 32.Qxd8 Qe3 33.Qh4
( 33.Bxb6 Qxg3+ 34.Kg1 Qxg2# )
33...Qe2 34.Rg1 Nc4 35.Kh1 Rxa2 36.Bc5 Nd2 37.g4 Nf3 38.Qf2 ( 38.gxh5 Nxh4 $19 )
38...Qd3 39.gxh5 Rxf2 40.Bxf2 Nxg1 41.Kxg1 gxh5 $19 ) 30.Qxd7
( 30.Rxf6 Nhxf6 31.Bf3
( 31.Be3 Ra8 32.Bf1 Rbxa2 33.Bf2 Rb2 34.Qd1 Raa2 35.Be3 Rc2 36.c4 Rc3 37.Qb1 Rac2 38.Bg2 Re2 39.Bf2 Rcc2 40.Qf1 Rxf2 41.Qxf2 Rxf2 42.Kxf2 Nc5 43.Ke3 Kh6 44.Bh1 Kh5 45.Bf3+ Kg5 46.Be2 ( 46.Bg2 Kg4 47.Bh1 Kxg3 48.Bf3 g5 49.Bh1 g4 $19 ) 46...Nfxe4 $19 )
31...Ra8 32.Be3 Raxa2 33.Qf1 Rc2 34.Qe1 Nh5 35.Bxh5 gxh5 36.Qf1 Re2 37.Bg5 Nc5 38.Bf6+ Kg8 39.Bxe5 Nd3 40.Bd6 Re1 $19 mate-in-23 Stockfish 8 @ 57 depth ) 30...Qe6 31.Qxe6 fxe6 32.Rxf8 Kxf8 33.Kh2
( 33.g4 Nf4 34.Bc5+ Kg7 35.Bf3 Rxa2 36.c4 Rc2 37.Be3 Rxc4 38.g5 Rc3 39.Kf2 Kf7 40.Bh1 Rc4 41.Kf3 Nd3 42.Ke2 Nc5 43.Bxc5 Rxc5 44.Bf3 Ke7 45.Bg4 Kd6 46.Ke3 Rc3+ 47.Kd2 Rc4 48.Ke3 Ra4 49.Kf3 Ra1 50.Kf2 Rb1 51.Bf3 Rb2+ 52.Ke1 Rb3 53.Bg4 Rg3 54.Be2 Re3 55.Kf2 Rxe2+ 56.Kxe2 Kc5 57.Kd3 Kb4 58.Kd2 Kc4 59.Ke3 Kc3 60.Ke2 Kd4 61.Kf3 Kd3 62.Kf2 Kxe4 $18 ) 33...Rxa2 34.Bb8 Nf6 35.Kh3 Nd7 36.Bd6+ Kf7 37.Bf1 Rd2 38.Bc7 Rc2 39.Ba5 Nc5 40.Bc7 Nxe4 41.Bxe5 ( 41.Bd3 Nf2+ 42.Kh4 Nxd3 $19 )
41...Rc1
♗lack resigns in lieu of
42.Kg2 Nxc3 43.Bd3 Nd5 44.Kf3 Nb4 45.Be4 Rc4 46.Ke3 Nd5+ 47.Kd3 Ra4 48.Bb2 Rb4 49.Be5 g5 50.Bd6 Ra4 51.Bf3 Kf6 52.Be4 g4 53.Bh7 Ne7 54.Bxe7+ Kxe7 55.Ke3 Kf6 56.Kf2 Ke5 57.Bg6 Ra2+ 58.Ke1 Rg2 59.Be8 Rxg3 $19 mate-in-14 Stockfish 8 @ 57 depth
0-1

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