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John Nunn vs Slim Bouaziz
"Your Chances of Winning Are..." (game of the day May-07-2019)
Reggio Emilia (1983/84), Reggio Emilia ITA, rd 8, Dec-31
Sicilian Defense: Najdorf. Amsterdam Variation (B93)  ·  1-0



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Kibitzer's Corner
Premium Chessgames Member
  tamar: After 19...f6 20 Bxf6! chances for a winner are between Slim and Nunn.

And Slim just left town... ;-)

Apr-18-15  Albanius: In the final position, 24..Qe7 allows mate in 3:
25 Rf8 + Rf8
26 Rf8+ Qf8
27 Qh7#

24 .. Ree8 isn't much better:
25 Bh7+ Qh7
26 Qg5+ followed by pinning the Q
followed by mate with Q+R.

Apr-18-15  Albanius: Black would have been better off fianchettoing the KB, transposing to the Dragon Levenfisch variation, as in Ljubojevic vs Miles, 1980 which led to a complex game with chances for both sides, in other words, with two chances...
Premium Chessgames Member
  andrewjsacks: Excellent pun.
May-07-19  nalinw: Yes - great pun - rare occasion when both players names are relevant ....
May-07-19  SeanAzarin: Best pun I've seen on this site in at least six months.
May-07-19  onigorom: What happens after, say
25 Bh7+ Qh7
26 Qg5+ Kh8
27. Rh6 Bf5

I see
28.h3 Bxc2

May-07-19  catlover: Excellent game title. Well done, <tamar>!
May-07-19  Ironmanth: Wow. Yes, great pun; need more coffee, as didn't get the whole thing past "Slim" at first. Bravo. Hugely destructive game for Black here. Thanks, chessgames!
May-07-19  paavoh: Front runner in the contest for the Best Pun of the Year award!
May-07-19  Strategsson: 12...d5?
It seems like this was the main cause for Black's subsequent problems. Completing development with 12...♗g4 was probably best, with moves like ♖e8 and ♕b6 to follow. Black should obtain an active enough position with equality at minimum.

Opening up the position is wrong on principle; Black is not fully developed while all of White's pieces, apart from the queen's ♖, are actively placed. It's especially ill-timed here since White temporarily emerges a pawn up, forcing Black to further stall his development in order to restore the material balance. It's only logical that White should stand better after this.

16... ♘xa4?
Black gets the pawn back but at the price of sidelining the knight, which is no longer able to capture the powerful ♗d3 (its potential being unleashed by 12...d5?) and Black still hasn't been able to develop his queen side. These are prerequisites for a successful kingside assault which is logically initiated by White's next move.

17. ♘g5!
If Black now defends against the threat on h7 with 17...g6 there is the tactical sequence 18. ♘xf7! ♔xf7 19. ♗g5 ♗f5 20. ♗xf5 ♗xg5 21. ♗e6+ ♔g7 22. ♕d4+! which picks up the ♘ on a4 and White emerges a pawn up and with a weakened Black king position to play against.

20. ♗xf6!
After this blow Black's position seems to collapse. White can use a combination of threats on h7, f6 and a ♖-lift to finish Black off.

Premium Chessgames Member
  wood n tempo: Awesome pun!
May-07-19  faulty: grats, Tamar. Excellent, purely excellent.
May-07-19  Ilkka Salonen: Ok, the pun has been praised about engaging both the player's names. I do hope you don't mean also the name of the opening, as that would be a reminiscent of holocaust and some horrible thing.
Premium Chessgames Member
  Breunor: Great pun and comment from Tamar!

Yup computer agrees with Stategsson; d5 is the problem. Black is slightly ahead otherwise.

After d5:

1) +1.01 (20 ply) 13.Nxd5 Nxd5 14.exd5 Bf6 15.c4 Re8 16.Be3 Nxd3 17.Qxd3 Bf5 18.Qb3 Bxb2 19.Qxb2 Rxe3 20.Ne5 g6 21.Rae1 Rxe1 22.Rxe1 f6 23.Nf3 Qd6 24.Nd2 Rb8 25.Qd4

Best is Bg4 (24 fuel):

1) -0.24 (22 ply) 12...Bg4 13.h3 Bh5 14.Be3 Rc8 15.Rad1 Nxd3 16.Qxd3 Re8 17.Bd4 d5 18.Bxf6 Bxf6 19.Nxd5 Bg6 20.Rfe1 Bh4 21.Nxh4 Qxh4 22.Nc3 Bh5 23.g4 Bg6 24.b3

Here we see black does still sacrifice the d pawn but it is set-up better.

Our colleague is also correct about 16 Nxa4?

1) +1.01 (22 ply) 17.Ng5 Bxg5 18.Bxg5 f6 19.Bxf6 gxf6 20.Rf3 f5 21.b3 Qb6+ 22.Kh1 Nb2 23.Re1 Bd7 24.Re6 Qd4 25.c3 Qg7 26.Rxe8+ Rxe8 27.Qxb2 Qe5 28.Qc1 Qe1+ 29.Qxe1 Rxe1+ 30.Rf1 Re3 31.Bxf5 Bxf5 32.Rxf5 Rxc3

Holding was Bxb2 (Nx d3 has a similar score):

1) +0.27 (20 ply) 16...Bxb2 17.Be3 Nxd3 18.Qxd3 Bf6 19.c4 Bd7 20.Rb1 b5 21.axb5 axb5 22.cxb5 Bg4 23.d6 Bh5 24.Rbe1 Bg6 25.Qd2 Qd7 26.b6 Rad8 27.Bc5 Be4 28.Rf2 Bb7 29.Rxe8+ Rxe8

2) +0.30 (20 ply) 16...Nxd3 17.Qxd3 Qb6+ 18.Kh1 Qxb2 19.Bg5 Qc3 20.Bxf6 Qxf6 21.c4 Bf5 22.Qd4 Qxd4 23.Rxd4 f6 24.a5 Re2 25.c5 Be4 26.d6 Bc6 27.d7 Rd8

17 Bb6 ch? was a big blow:

1) +2.05 (21 ply) 18.Kh1 Nxb2 19.Rb1 Qd4 20.Bxh7+ Kh8 21.Qxd4 Bxd4 22.Be4 f6 23.Nf7+ Kg8 24.Bg6 Rf8 25.Nd6 b5 26.Nxc8 Rfxc8 27.Bf5 Rd8 28.d6 Nc4 29.d7 Ne5 30.Be6+ Kf8 31.Bd5 Nxd7 32.Bd6+ Ke8

Best was

1) +0.42 (22 ply) 17...Bxg5 18.Bxg5 f6 19.Qb4 Qb6+ 20.Qxb6 Nxb6 21.Bf4 Na4 22.Rde1 Bd7 23.b3 Nc3 24.Bc7 Kf7 25.d6 Nb5 26.Rxe8 Rxe8 27.Bc4+ Kf8 28.Rd1 Re5 29.Bd8 h6 30.Bb6 h5 31.h3 Nc3 32.Rf1

So the 'obvious' check cost about 1.5 points!

And again Straegson is correct about 18 f6? Best was Qd6, still bad, but much better:

1) +1.84 (20 ply) 19...Qd6 20.c4 Nc5 21.Bf4 Qf8 22.Bc2 Bg4 23.Rde1 Rxe1 24.Rxe1 Re8 25.b4 Nd7 26.c5 Rxe1+ 27.Qxe1 Bh5 28.c6 bxc6 29.dxc6 Nf6 30.Bb3 Bg6 31.c7 Qa8

After f6 its all over:

1) +4.87 (22 ply) 20.Bxf6 gxf6 21.Qh6 f5 22.d6 Qd4 23.Bb5 Re6 24.Qg5+ Qg7 25.Qxg7+ Kxg7 26.d7 Bxd7 27.Rxd7+ Kh8 28.Bxa4 b5 29.Bb3 Re5 30.Kg1 a5 31.c3 Re2 32.Rxf5 Rxb2 33.Rxb5 Rb1+ 34.Kf2 Rb2+ 35.Kf1 Rf8+ 36.Kg1 Rb1+ 37.Rd1 Rb2 38.Bc4 Rxb5

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