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Peter K Wells vs Vitezslav Priehoda
"Wishing Wells" (game of the day Nov-06-2016)
Cappelle op 8th (1992), Cappelle-la-Grande FRA, rd 8
English Opening: Symmetrical. Anti-Benoni Variation Spielmann Defense (A33)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-02-16  ndg2: Got it up to 30.a6 (preparing a fork if black takes with the rook).
Apr-02-16
Premium Chessgames Member
  agb2002: The material is identical.

Black threatens 26... Nxc5 and 26... N(R)xa5.

The black king doesn't have much mobility and the black pieces are poorly coordinated. The attempt to exclude the rook on a6 from play with 26.Nd6+ Nxd6 27.Rxd6, with the threat e4 followed by Bf1, seems to fail against 27... Kc7 (27... Rb5 28.Rxb5 cxb5 29.Rxa6).

Another idea is to try to exploit the position of Black's king and pieces with 26.Rxc6+:

A) 26... Rxc6 27.Nxa7+ Kc7 (27... Kd8 28.Nxc6+ followed by 29.Nxb8 is crushing) 28.Rxd7+ Kxd7 29.Nxc6

A.1) 29... Ra8 30.a6

A.1.a) 30... Rxa6 31.Nb8+ followed by 32.Nxa6 + - [B+2P].

A.1.b) 30... Nc5 31.Ne5+ Ke6 32.Bxa8 Kxe6 33.a7 followed by Bf3 wins.

A.1.c) 30... Nd6 31.Ne5+ Ke6 32.Bxa8 Kxe6 33.a7 Nb5(c8) 34.Bd5+ Kxd5 35.a8=Q+ wins.

A.2) 29... Rc8 30.a6 (30.Bh3+ Kxc6 31.Bxc8 Nxa5 followed by the attack against the c-pawn)

A.2.a) 30... Rxc6 31.Bxc6+ Kxc6 32.a7 wins.

A.2.b) 30... Nd6 31.a7 Kc7 (due to 32.Nb8+) 32.Nb8 followed by a8=Q wins.

A.3) 29... Re8 30.a6 looks similar to A.2.

B) 26... Bxc6 27.Bh3+ Bd7 28.Rxd7

B.1) 28... Rxa5 29.Rd1(2-6)+ f5 30.Bxf5#.

B.2) 28... Rh6 29.Nxa7#.

B.3) 28... g6 29.Rd6+ f5 30.Rxa6 + - [B+P].

B.4) 28... Nd8 29.Rc7#.

B.5) 28... Nxa5 29.Nxa7+ Rxa7 30.Rxa7+ Kd8 31.Rxa5 + - [B+P].

B.6) 28... Nc5 29.Nxa7+ Rxa7 30.Rxa7+ Kd8 31.Rxf7 + - [B+3P vs N].

Apr-02-16  PeterJ: Got this. A really nice one for a hard position - some beauty and depth to the combination but not so complex that there is no real definition of where the fireworks start or clear forcing sequences as in some of the end of week puzzles.
Apr-02-16
Premium Chessgames Member
  patzer2: I was in over my head on this Saturday puzzle. If it had been a rapid or blitz game, OTB I would have been content to play 26. Nd6+ Nxd6 27. Rxd6 Kc7 28. Rd1 Be6 with reasonable drawing prospects.

Since it was a difficult Chess puzzle, I correctly guessed the first move was 26. Rxd6+!. However, I had no clue as to the clever follow-up needed to secure the win.

Here's a breakdown of my move-by-move look with Deep Fritz 15 at the winning 26. Rxd6+! solution:

<26. Rxc6+!>

(26. Nd6+ Nxd6 27. Rxd6 Kc7 28. Rd1 Be6 )

<26... Rxc6>

(26... Bxc6 27. Bh3+ (27. Bxc6? Nc5 ) 27... Bd7 28. Rxd7 Nc5 29. Rxf7+ Kd8 (29... Ne6 30. Rf8+ Kd7 31. Rxb8) 30. Rf8+ Ke7 31. Rxb8)

<27. Nxa7+ Kc7 28. Rxd7+>

(28. Nxc6 Bxc6 )

28... Kxd7 29. Nxc6 Ra8?

(Putting up more resistance is 29... Rf8 when White must find the more difficult win 30. a6 Nd6 31. a7 Kc7 32. Nd4 Nb7 33. Nb5+ Kb6 34. c4 h5 35. f4 Ra8 36. Kf2 Rf8 37. Bd5 f5 38. Kf3 g6 39. e4 fxe4+ 40. Bxe4 Rg8 41. Bd5 Rd8 42. Ke4 Re8+ 43. Kd4 Rd8 44. Kc3 Ra8 45. Kb4 Rh8 46. Be4 Rg8 47. a8=Q Rxa8 48. c5+ Nxc5 (48... Ka6 49. Nc7+ ) 49. Bxa8 )

<30. a6 Kc7>

(30... Nd6 31. Ne5+ Ke6 32. Bxa8)

31. Nb4

Black's decisive mistake appears to be <24...Nb7?> allowing 25. Nb5+ to (+1.77 @ 18 depth, Deep Fritz 15).

Instead, 24...Re8 = (0.12 @ 21 depth, Deep Fritz 15) appears to hold.

Apr-02-16  RandomVisitor: After 25...Kc8


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Komodo-9.42-64bit:

<+1.51/35 26.Rxc6+ Rxc6 27.Nxa7+ Kc7 28.Rxd7+ Kxd7 29.Nxc6> Rh8 30.a6 Nd6 31.a7 Kc7 32.Nb4 Nb7 33.Nd5+ Kc6 34.c4 Ra8 35.Nc3+ Kb6 36.Nb5 Rh8 37.Bd5 f6 38.Kf1 Rd8 39.Kg2 Rf8 40.Kf3 g6 41.Ke4 h5 42.Kf4 Rh8 43.Be4 h4 44.gxh4 Rxh4+ 45.Ke3 Rh8 46.Kd4 g5 47.Bd5 Rf8 48.Ke4 f5+ 49.Kd4 f4 50.Nd6 Nxd6 51.a8Q Nf5+ 52.Ke5 Rxa8 53.Bxa8 Nh6

+0.29/35 26.Rc4 Nxa5 27.Rcd4 Be6 28.Nd6+ Kc7 29.Nxf7 Nb3 30.Re4 Nc5 31.Ng5 Re8 32.Re5 Bb3 33.Rxe8 Bxd1 34.f4 Ra3 35.Re7+ Kb6 36.f5 Bc2 37.g4 Rxc3 38.Rxg7 Rg3 39.f6 Rxg4 40.f7 Nd7 41.Rg8 Bb3 42.f8Q Nxf8 43.Rxf8 Bd5 44.e4 Rxg5 45.exd5 cxd5 46.Rb8+ Kc7 47.Rb1 a5 48.Kf2 d4 49.Ra1 h6 50.Bf3 Rf5 51.Rd1 Kd6

Apr-02-16  wooden nickel: It's easer to spot 28.Nb5+ which could lead to a draw... the text line 28.Rxd7+ is a great move!


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Apr-02-16
Premium Chessgames Member
  thegoodanarchist: Beautiful combo! I will play over it again.
Apr-02-16  RandomVisitor: as Patzer2 suggests above, black might have drawing opportunities after 24.Rd1:


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Komodo-9.42-64bit:

<+0.27/32 24...g6> 25.Re5 Re8 26.Rxe8 Nxe8 27.Ra1 c5 28.Nb3 Re6 29.e4 Nf6 30.Nxc5 Rc6 31.Nxd7 Nxd7 32.Ra3 Rd6 33.Bf1 Rd2 34.Ra4 Ne5 35.Ba6 Kd6 36.Rb4 f6 37.Rb7 Ng4 38.e5+ fxe5 39.Rf7 h5 40.Bc8 Rc2 41.Bxg4 hxg4 42.Kg2 Rxc3 43.Rxa7 Ra3 44.Ra6+ Kd5 45.Rxg6

+0.37/32 24...h6 25.Ra1 f6 26.Nc2 Nb7 27.Rh5 c5 28.Bxb7 Rxb7 29.Rxc5+ Rc6 30.Rxc6+ Kxc6 31.f3 Kd6 32.Nd4 Rc7 33.Rd1 Ke7 34.Rd3 Rc5 35.Nb3 Rc7 36.Kf2 Bb5 37.Re3+ Kf7 38.Nd4 Rc5 39.Re6 Rd5 40.Re4 Ba4 41.Nf5 Rxa5 42.g4 Bc2 43.Re7+ Kf8 44.Rb7 Bxf5 45.gxf5 h5

+0.38/32 24...f6 25.Rh5 h6 26.Ra1 Bg4 27.Rc5 Bd7 28.Nc2 Nb7 29.Rh5 c5 30.Bxb7 Rxb7 31.Rxc5+ Rc6 32.Rxc6+ Kxc6 33.f3 Kd6 34.Nd4 Rc7 35.Rd1 Ke7 36.Rd3 Rc5 37.Nb3 Rc7 38.Kf2 Bb5 39.Re3+ Kf7 40.Nd4 Rc5 41.Re6 Rd5 42.Re4 Ba4 43.Nf5 Rxf5 44.Rxa4 Rc5 45.Rd4 Rxa5 46.Rd7+

+0.52/32 24...Re8 25.Rb1 f6 26.e3 Re5 27.Rxe5 fxe5 28.Nb3 c5 29.Ra1 Nc4 30.Bd5 Bb5 31.e4 Rf6 32.Kg2 h6 33.Nxc5 Kd6 34.Nb3 Rf8 35.Rd1 Ke7 36.Nc5 Rc8 37.Nd3 Kf6 38.Nb4 Ke7 39.Ra1 Kf6 40.Re1 Nd6 41.Rc1 Nc4 42.f3 Nxa5 43.Ra1 Nc4 44.Bxc4 Bxc4 45.Rxa7 Be6

Apr-02-16
Premium Chessgames Member
  kevin86: The sacs and forks decide this one.
Apr-02-16  dfcx: Got the first two moves but did not see 28.Rxd7+ followed by Nxc6 (Bxc6+ draws)

As pointed out by <patzer2>

Black has better drawing chance with 29...Rf8/h8.

According to Stockfish 6
29...Rf8/Rh8 (+1.32/29) is much better than
29...Kc7 (+3.88) or 29...Ra8?? (+4.57)

White has to play precisely to win:

29...Rf8 30.a6 Nd6 31.a7 Kc7 32.Nd4 Nb7 33.c4 Kb6 34.Nb5 Ra8 35.Be4 g6 36.Bd5 f6 37.e4 Rxa7 38.Nxa7 Kxa7 39.Bxb7 Kxb7 40.Kg2 g5 41.Kh3


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Apr-02-16
Premium Chessgames Member
  whiteshark: The 'usefullness' of a fianchettoed ♘ has once again confirmed. ;)
Apr-02-16  David2009: The puzzle of the day (P K Wells vs V Priehoda, 26?)


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It took me for ever to find the solution. In a real game I might have lost on time, or played by instinct and worked out the correct continuation over the board. Who knows? White has two pieces en prise and should settle for a draw by repetition: 26.Rxc6+ Rxc6! (26...Bxc6? 27.Bh3+ is fine for White) 27.Nxa7+ Kc7 28.Nb5+ and now Kd8? (which I at first thought would win for Black) is a losing blunder (28...Kd8?? Bxc6 1-0), so Black accepts the forced repetition. White cannot play for the win: 28.Rxd7+? Kxd7 29.Nxc6 and Black can unravel with 29...Re8 or 29...Ra8. Time to check:
=====
White could and did play for the win - and won!

I missed 29...Ra8 30.a6! (which I had analysed but thought was well met by 30...Rxa6) and if Rxa6 31.Nb8+ 1-0.

29...Re8 seems a better defence. No doubt the kibitzes will explain the White win. Good puzzle!

Apr-02-16  David2009: P K Wells vs V Priehoda, 1992 26? postscript: Here's a link to the puzzle position


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set up in Crafty End Game Trainer.
http://www.chessvideos.tv/endgame-t...

Enjoy winning the ending against good defence: I only drew first time round.

The EGT is back and playing as toughly as ever - indeed better : it has been re-programmed to play alternativve, strong, defences.

Apr-02-16
Premium Chessgames Member
  devere: A very nice problem. If Black defends well White has to be careful to win.

26.Rxc6+ Rxc6 27.Nxa7+ Kc7 28.Rxd7+ Kxd7 29.Nxc6 Rh8 30.a6 Nc5 31.a7 Kc7 32.Nd4 Nb7 33.Nb5+ Kb6 34.c4 h5 35.Bd5 f6 36.f4 g5 37.fxg5 fxg5 38.e4 h4 39.gxh4? gxh4


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Now whenever White plays e5 it seems that Black can draw with Na5. If instead 39.g4! White can win


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39...Rf8 40.e5 Na5 41.a8=Q Rxa8 42.Bxa8 Nxc4 43.e6 Kxb5 44.e7 Nd6 45.Bd5 Kc5 46.Bf7 1-0


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Nov-06-16  offramp: A pun using Black's name would have been more inventive.
Nov-06-16  AlicesKnight: 24....Nb7 looks such a natural move, but it allows the dramatic follow-up. The N check takes an attack off the c-pawn, only for it to be captured next move and suddenly the Black K is jammed against his Q-side pieces. Very good.
Nov-06-16  morfishine: <offramp>...Ah, that dog isn't so smart, I got him down 3 games to 1
Nov-06-16
Premium Chessgames Member
  thegoodanarchist: <offramp: A pun using Black's name would have been more inventive.>

I prefer <Wells Go Far>, but given the recent bad conduct of Wells Fargo I don't think it had a chance of being approved.

Nov-06-16  belgradegambit: All's Wells that ends well.
Nov-06-16  NimzoCharlie: Did White miss 7. cd ed 8. Nxd5 Nxd5 9. Qxd5 Qxd5 10. Nc7, winning a pawn?
Nov-06-16  Shams: <NimzoCharlie> Well spotted but in this particular line that continuation has brought White mostly troubles; Black keeps the Queens on and just plays a dangerous gambit instead.

Suba vs Portisch, 1984

Nov-06-16  Rookiepawn: Is 29... Nxa5 givng any chances to B? 30. Nxa5 Rb5 31. Nb7 Rb1+ and 32... Rc1.

Though... After 31. Nc6 Rc5 32. c4 and the pawn is untouchable... <sigh...> . But maybe this resists more?

Nov-06-16  ajile: If White doesn't play d5 after Black's ..c5 it takes all the fun out of the game for Black.

: /

Nov-07-16
Premium Chessgames Member
  kevin86: White is behind in material, but the threats win it.
Dec-23-20
Premium Chessgames Member
  fiercebadger: The black player (the loser) very sportingly submitted this game to "chess informant"
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