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Tamas Banusz vs Nigel Povah
Gibraltar Masters (2018), La Caleta GIB, rd 1, Jan-23
Zukertort Opening: Queen Pawn Defense (A06)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Jun-13-19  SpamIAm: 29.Rxe5 'screams' to be played, as it removes the defense of the g6 square. The lack of a lateral defense on the seventh rank dooms black's defensive chances.
Jun-13-19  SpamIAm: Maybe trying 18...e5!?, a move earlier (instead of 19...e5) was a better idea. As it is as black played it, it gave white the chance to play 20.Bd5.
Jun-13-19  Mayankk: I saw everything except 33 Bxc5 and the resulting forks... which basically means I saw nothing.
Jun-13-19
Premium Chessgames Member
  al wazir: I got 29. Rxe5 fxe5 30. Qg6+ Kg8 31. Ne6 Rb7 (or 31...Rd7)...

But I missed 32. Ng5.

Jun-13-19
Premium Chessgames Member
  agb2002: Black threatens Rxf8.

The black knight controls g6. This suggests 29.Rxe5:

A) 29... fxe5 30.Qg6+ Kg8 31.Ne6 (31.Nh7 Qxh3 32.Ng5 Qh6)

A.1) 31... Rd7 32.Ng5 Bc5 33.Bxc5 Qxc5 34.Qh7+ Kf8 35.Ne6+ and 36.Nxc5 wins.

A.2) 31... Qd7 32.Ng5, as above.

B) 29... Rxf8 30.Re7#.

Jun-13-19  malt: Got 29.R:e5 fe5 30.Qg6+ Kg8 31.Ne6 Rb7(Rd7)

32.Ng5 Bc5 33.B:c5 Q:c5 34.Qh7+ Kf8 35.Ne6+ wins

Jun-13-19  RandomVisitor: Nigel Edward Povah, the black player in this game, is credited with the "Monkey's Bum" opening: from wikipedia

The Monkey's Bum is a variation of the Modern Defense, a chess opening. Although it may also be loosely defined as any approach against the Modern Defense involving an early Bc4 and Qf3, threatening "Scholar's mate", it is strictly defined by the sequence of moves:

1. e4 g6
2. Bc4 Bg7
3. Qf3 e6
4. d4 Bxd4
5. Ne2 Bg7
6. Nbc3
The Monkey's Bum Deferred is a more respected variation in which White develops his queen's knight before playing Bc4 and Qf3.

<The Monkey's Bum was discovered and championed by IM Nigel Povah in the 1970s during a wave of popularity for the Modern Defence.> In 1972, after Keene and Botterill published their book The Modern Defence, Povah began looking for a response to the opening. He happened across the game Ljubojević–Keene, Palma de Mallorca 1971, which started 1.e4 g6 2.d4 d6 3.Bc4 Bg7 4.f4 Nf6 and eventually ended in a draw. Intrigued by Ljubojević's early Bc4, Povah began investigating a rapid assault on f7 with 3.Qf3. When he showed the first few moves to Ken Coates, <a friend at Leeds, Coates declared, "If that works then I'm a monkey's bum!" The name stuck.> The Monkey's Bum first appeared in print five years later in the British Chess Magazine. Povah wrote an article on the theory of the Monkey's Bum, in which he stated that although he had never yet lost with the variation, it was still "in its infancy".

Jun-13-19  gofer: Mr Povah recently played against us on Board 1 in the final of the Alexander Cup (Surrey Knockout) Wimbledon v CCF. He defended well, a pawn down, and managed to draw.

https://www.scca.co.uk/comps/comps_...

His game was the last to finish and decided the result, but not in his teams' favour. The 10 second increment meant the game lasted ages and was really horrible for the onlookers watching each player's clock repeatedly go down the wire and back up again...

Jun-13-19  mel gibson: The first move was obvious.
Remove that Knight.

Stockfish 10 says mate in 22.

29. Rxe5

(29. Rxe5 (♖e1xe5 f6xe5 ♕h7-g6+
♔f7-g8 ♘f8-e6 ♖b8-b7 ♘e6-g5 ♗b6-c5 ♗b4xc5 ♕c8xc5 ♕g6-h7+ ♔g8-f8 ♘g5-e6+ ♔f8-f7 ♘e6xc5 ♖b7-b6 ♕h7-f5+ ♖b6-f6 ♕f5xe5 ♔f7-g6 ♘c5-e6 ♖d8-e8 ♕e5-g5+ ♔g6-f7 ♕g5xg7+ ♔f7xe6 ♖d1-e1+ ♔e6-d5 ♖e1xe8 ♖f6-c6 ♕g7-b7 ♔d5-d6 ♕b7-b8+ ♖c6-c7 ♕b8-b6+ ♖c7-c6 ♕b6xd4+ ♔d6-c7 ♖e8-e7+ ♔c7-b8 ♕d4-a7+ ♔b8-c8 ♖e7-e8+) +M22/48 500)

Jun-13-19
Premium Chessgames Member
  TheaN: Typical. I looked at the game line for at relatively long time and didn't managed to make it work after any major piece defends the 7th rank for Black on move 31. In hindsight, the idea of 32.Ng5! on as good as any defense works wonders.

I opted for the less optimal <30.Qh5+?! Kg8<>> White can still reconsider once here and play Qh7+ <31.Ng6<>> threatens Ne7+, Qh8+ and Nxe5, but Black can cope partly <31....Bc5!<>> defending e7 and attacking b4. After <32.Qh8+ Kf7 33.Nxe5 Ke6!<>> putting two pieces en prise, but White wins with <34.Qxg7!!<>>. Obviously this is beyond the scope of a Thursday and the game line is a lot easier.

It is a mighty position however:


click for larger view

White's prepared to desperado Ne5 if he's allowed to follow up with the rook reload. So after as good as forced 34....Bxb4 Black goes a rook up and defends e1 but is apparently still lost after 35.Nd3! Ba5, no proper way to defend the bishop otherwise and going an exchange up isn't enough with the centralized king 36.Rc1! Qxc1!, else the king gets overrun, 37.Nxc1 Kd5 38.Nd3 +- and White's objectively winning but has a hell of a job.


click for larger view

Lets just stick to 30.Qg6+

Jun-13-19  devere: Instead of 27...Rd8?, g6 would have given Black a playable position.
Jun-13-19  patzer2: For today's Thursday puzzle, I got 29. Rxe5! fxe5 30. Qg6+ Kg8, but missed 31. Ne6! Rb7 (31...Rd7 32. Ng5 +-) 32. Ng5 +-.

Instead, I settled for a draw by perpetual with 31. Qh7+ Kf7 32. Qg6+ Kh8 33. Qh7+ Kf7 33. Qg6+ =.

P.S.: So where did Black go wrong? According to the computer, the losing move was 27...Rd8? allowing 28. Qxh7+ Kf7 29. Rxe5! +- (+16.88 @ 31 ply, Stockfish 10).

Instead, Black can put up more resistance by sacrificing the exchange with 27...g6 28. Nxd7 Qxd7 29. Kg2 Re8 ± (+1.39 @ 35 ply, Stockfish 10).

Earlier, instead of 26...Bb6? allowing 27. Nf8! ± (+1.26 @ 34 ply, Stockfish 10), Black could have kept it level with 26...Bd6 27. Bxd6 Rxd6 = (-0.17 @ 37 ply, Stockfish 10).

Jun-13-19  erichbf: If after 31. Nh7, Qxh3 then 32. Nf6+ followed by 33. Nh5, so seems 31.Nh7 works.
Jun-13-19  patzer2: <Random Visitor> Thanks for the post about Povah and his "Monkey's Bun" opening variation.

The "Monkey's Bun" looks to be an interesting and promising try against the modern defense (1. e4 g6). However, in the only game I could find in our Opening Explorer with Povah playing his "Monkey's Bun," it got beat in N E Povah vs S Kagan, 1977

Jun-13-19
Premium Chessgames Member
  Jimfromprovidence: If after 29 Rxe5 comes 29...Rb7, then after 30.Qg6+ Kg8 there is the nice 31.Nh7, below.


click for larger view

The threat is 32 Nf6+ Kh8 33 Qh5#. Black has to give up a boatload of material to prevent this outcome.

Jun-13-19
Premium Chessgames Member
  Willber G: <patzer2: <Random Visitor> Thanks for the post about Povah and his "Monkey's Bun" opening variation.>

It's <Monkey's Bum>, as in backside.

I met Nigel Povah about 15 years ago. At that time he had a company that ran management development courses which I was attending. We talked about his chess career in the bar over a few beers. Nice bloke.

Jun-13-19  R4f43l L3 M4550n: I'm afraid to say that this is easier than yesterday's problem. After realising the exchange sacrifice, white finds his way without any concern. I'm glad to have notice the first three moves.
Jun-14-19  patzer2: <Wilber G> "Monkey's Bum" not Bun. Got it. Thanks!
Jun-14-19
Premium Chessgames Member
  perfidious: I well remember reading Povah's article in BCM with much amusement.
Jun-14-19
Premium Chessgames Member
  gawain: Interesting kibitzing, today.

As for the puzzle, I did not see 31 Ng5. I did not even see the previous move 30 Nd6. I was too focused on the h7 square.

Good puzzle.

Aug-02-19  gambitfan: 1) +14.1 (21 ply) 33...♕xc5 34.♕h7+ ♔f8 35.♘e6+ ♔f7 36.♘xc5 ♖a7 37.♖e1 ♖e7 38.♕f5+ ♔g8 39.♘e6 ♖f7 40.♕h5 ♖df8 41.♘xf8 ♖xf8 42.♖xe5 a3 43.bxa3 b4 44.♖e8 ♖xe8 45.♕xe8+ ♔h7 46.♕h5+ ♔g8 47.axb4 d3 48.♕e8+ ♔h7 49.♕e4+ g6 50.♕xd3
Aug-02-19  gambitfan: une jolie fourchette 35. Ne6+ prend la Dame

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