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Vitaly Tseshkovsky vs Slavoljub Marjanovic
Minsk (1982), Minsk URS, May-??
Sicilian Defense: Paulsen. Bastrikov Variation (B47)  ·  1-0



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Kibitzer's Corner
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Premium Chessgames Member
  chrisowen: I sting bishopg5 as first in cage rookxg5 or f6 see ar light

composes right off the batter yonder in charge threaten g2 mate

alive so in requires hope g5 lighted couple on candidates either in

guess stint in g5 then qxg5+ allowing bf6 repels the flipper.

click for larger view

Key 30.fxe6 an white should go on to win steady f6 allow it groundin

28.fxe6 ugh easy louise whats to be done? Loads hanging rookxg5

exd7+ king sidestep in e5 see one effect f7 o ok at a pull tame

g5rook queen clean dufus in d8 rooke8+ has him scrambling so back to

29...e5 the line rookxe5+ linger on im often inclined to sac further given king exposed rook re-take 31.qg7+ and, from a baby to mature d7 queens in, good games really to study before g5 and after g7+ eminate king back rookd1 all over gritting his teeth in the corner a8 d7 brings home the motherload.

Premium Chessgames Member
  Once: <Jim> I always enjoy the extra dimension that you bring to these puzzles!

And after your diagram, white can defuse the black mate threat once and for all by forcing the exchange of either queen or rook:

32...Qc7 33. Qxc7+ or

32...Kc5 33. Re5+

click for larger view

Sep-02-12  JRMenezes: <Memethecat: <JRMenezes> I'm finding it very difficult to follow your analysis, it makes no sense & I gave up.>

Actually I was in a hurry to be the first to post an analysis. So I might have made a little errors in numbering the moves. This part <29. exd7+ Be5 [if 30. ...Re5 31. Qg7+ Kd8> should read as <29. exd7+ Be5 [if 29. ...Re5 30. Qg7+ Kd8>

Also this part <31. Qg7+ Kd8 <WHAT NEXT>> I had forgotten to post the continuation. It should be 29... Re5 30. Qg7+ Kd8 31. Qf8+ Kxd7 (if 31... Kc7 32. Qxb8+ KxQ 33. d8=Q+ and black loses a rook) 32. QxR... and white has an advantage but not necessarily a material advantage. But I feel Black still has a chance and am not sure why Black didn't choose this line.

Yes I agree I should have mentioned the square names but u know it's such a hassle to scroll up and down every time u want to refer to a square. This game actually required a lot of analysis and hence a lot of typing. I was really exhausted after I posted my comments.

But please don't go by my analysis. When I checked on the computer I found it was not perfect. I just posted my views on the game without any help from a computer program.

Sep-02-12  master of defence: Why black played 32...Qa8?
Sep-02-12  JRMenezes: <gofer: My guess would be...

<27 ... Kf8>
<28 fxe6 dxe6>
<29 Rxe6! ...> >

if 29 Rxe6 then 29... Rxg5

30. RxQ RxQ 31. PxQ Rh8+ with mate to follow

I think the right continuation after 27... Kf8 should be

28. fxe6 dxe6

29. Qf4 (threatening to take Rook) Qb7 (if 29... Rb7 30. QxB RxB 31. Qd8+ and black loses a rook)

30. Qd6+ Ke8 (if 30... Kg7 31. QxB+ gains bishop with check)

31. Rxe6+ PxR 32. QxP+ with mate to follow

Sep-02-12  JRMenezes: <master of defence: Why black played 32...Qa8?>

Black had to protect the d8 square. White was threatening to play 33. Qf8+ Kc7 34. d8=Q+ RxQ 35. QxR+ with mate in a few moves

Sep-02-12  LoveThatJoker: Cool! A GM Tseshkovsky puzzle!

<27. Bxb4+>

A) 27...Rxb4 28. Qxg8

B) 27...Kd8/...Ke8 28. Qxg8+

C) 27...Kf6 28. fxe6+ (28. Qxd4+ is also winning for White) Ke7 29. exf7+ and 30. fxg8=Q

D) 27...Bc5 28. Bxc5+ Qxc5 29. Qh4+ White is up two pawns and has the initiative.

E) 27...d6! 28. Qe4 Qxc4 (28...Qxe4 29. Rxe4 and White's position is preferable) 29. fxe6 and White has the much better game.


Sep-02-12  LoveThatJoker: Air-ball today!

Stockfish agrees with me that 27. Bxb4+ d6! is the best defence for Black. It also goes on to tell me that the game is equal (and slightly better for Black) after 28. Qe4 Qxe4 29. Rxe4 something between the full equal 0.00 to -0.28 range.

I finish my week with 5.75 out of 7 for a pass.


Sep-02-12  gofer: <JRMenezes: <gofer: My guess would be... <27 ... Kf8> <28 fxe6 dxe6> <29 Rxe6! ...> > <if 29 Rxe6 then 29... Rxg5 30. RxQ RxQ 31. PxQ Rh8+ with mate to follow>

It is difficult to play 31 ... Rh8+ with the king on f8! You try it!


The line <29 Rxe6!> looks sound to me, it works against <Crafty EGT> and that is okay by me...

Sep-02-12  gofer: <David 2009>: Mate in 13 posted - as requested...
Premium Chessgames Member
  agb2002: White is a pawn ahead.

Black threatens 27... Rxg4.

The black bishop is hanging but 27.Qxd4 is impossible due to 27... Qxg2#.

The rook on b8 is overburdened. This suggests 27.Bxb4+, grabbing another pawn and trying to disturb the coordination of the black pieces and the safety of the black king:

A) 27... Kf6 28.fxe6+ and mate in two.

B) 27... Rxb4 28.Qxg8 e5 (to prevent 29.fxe6) 29.f6+ Ke6 (29... Kd6 30.Qf8+ Kc7 31.Qxb4) 30.Qe8+ Kd6 31.Qf8+, etc.

C) 27... Bc5 28.Bxc5+ Qxc5 (28... d6 29.Bxd6+) 29.Qf4 with the double threat 30.fxe6 and 30.f6+ Kd(e,f)8 31.Qxb8.

D) 27... d6 and White has to face Rxg4 and Rxb4.


Another option is 27.Bg5+, with the same idea and closing momentarily the g-file:

A) 27... Kd6 28.Qxd4+ Kc7 29.Bf4+ d6 30.Qf2 + -.

B) 27... Kf8 28.fxe6 dxe6 29.Rxe6 looks winning for White. For example, 29... Qc5 30.Be7+ Qxe7 31.Qxg8+ Kxg8 32.Rxe7 + -.

C) 27... Ke8 28.Qxd4 Rxg4 29.Qh8+ Ke7 30.f6+ Kd6 31.Qxb8+ Kc5 32.Qa7+ Kd6 33.Rd1+ wins.

D) 27... Bf6 28.Bxf6+ Kxf6 29.fxe6+ Ke7 30.exf7+ wins.

E) 27... f6 28.fxe6

E.1) 28... Rxg5 29.exd7+

E.1.a) 29... Kf8 30.Qxg5 + -.

E.1.b) 29... Kd8 30.Rd8+ Kc7 31.Rc8+ Kb7 (31... Kb(d)6 32.Qxd4+ + -) 32.Rxb8+ wins (32... Ka7 33.Qxd4+).

E.1.c) 29... Be5 30.Rxe5+ Rxe5 (30... fxe5 31.Qxg5+ + -) 31.Qg7+ Kd8 (31... Ke6 32.Rxf6#; 31... Kd6 32.Rd1+ Kc5 33.d8=Q Rxd8 34.Rxd8 Re1+ 35.Kh2 + -) 32.Qf8+ Kc7 33.Qxb8+ looks winning.

E.1.d) 29... Re5 30.Qxd4 with an overwhelming position.

E.2) 28... dxe6 29.Qxd4 Rxg5 30.Qxf6+ wins.


27.Bg5+ looks better than 27.Bxb4+.

Sep-02-12  James D Flynn: White is a P up, but his Q-side pawns are doubled. The material is otherwise equal. His immediate problem is the attack by the R on g8 on his Q. If the Q moves it must either check or go to a square where it covers the threat to his g2 P, therefore the B on d4 is not under attack, Instead of moving the Q he can interpose with 27.Bg5+ when f6 allows 28.Qxd4 and Bf6 allows 28.Bxf6+ Kxf6 29.Qh4 + or better f5xe6+. He can also try diverting the defender of the g8 R by 27.Bxb4+ d6(not Rxb4 28.Qxg8). He can also consider allowing the Q to be taken in exchange for an attack on the Black K by 27.e6 Rxg4 28.exd7+ or 28.Rxf7+. This may be stronger after the attempt to divert 27.Bxb4+ d6 28.fxe6 Rxg4 29.Rxf7+ Ke8 30.hxg4 Rxb4 31,e7 Kxf7 32.e8=Q+ Kg7 33.Re7+ Kf6 34.Qf8+ Kg5 35.Qf5+ Kh4 36.Rh7+ Kg3 37,Rh3#. Candidates 27.Qh4+, Bg5+, Qf3, Qe4, fxe6, Bxb4+.
27.Qh4+ Bf6 28.Qe4(not Qxf6+ Kxf6 29.fxe6+ Kg6 30.exf7 Rf8 and White is down a Q for a B) Qxe4 29.Rxe4 Bc3 30.Re2 Bxd2 31.Rxd2 Rg3 and Black will win the P on a4 leaving a fairly even game. 27.Bg5+ f6( if Bf6 28.Bxf6+ Kxf6 29.Qh4+ Rg5 30.f5xe6+ Kg6 31.Qxg5+ Kxg5 32.exf7 Rf8 33.Re8 Rxf7 34.Rg8+ Kh6 35.Rxf7 and the 2 Rs have the Black K in a mating net ) 28.Qxd4 Rxg5 29.Qe4 Qxe4 30.Exe4 Rg3 and the R wiil win the P on a4 when the chances will be fairly even. 27.Qf3 Qxf3 28,Rxf3 a5 and Black can create a central passed pawn by e5 that cannot immediately advance but will divert the attention of the White pieces while Blacks R pile up on the White P on c4. The endgame prospects are unclear. 27.Qe4 Bc3 28,Qxc6 dxc6 29.Rd2 Bxd2 30,Rxd2 a5 and the winning chances appear negligible. 27, fxe6 Rxg4 28.Rxf7+(not exd7+ Re4) Ke8 29.hxg4 dxe6 and Whites compensation for the Q appears insufficient. 27.Bb4+ d6 28.fxe6 Rxg4 29.Rxf7+ Ke8 30.hxg4 Rxb4 31.e7 32.Kxf7 Qe8+ 33.Kf6 Rf1+ Qf8+ and Blacks K is in a mating net.
Premium Chessgames Member
  al wazir: <consul: which line would you have played?> Probably something cautious and safe, like 27. Qf3. At least that threatens 28. fxe6 and 29. Qf7+ and prevents ...Qxg7+. White is a ♙ up after all.

In a real game there's no alarm that goes off and signals "You have a winning combination!"

Sep-02-12  Tiggler: <chrisowen>

Nice analysis! I think I got most of your thoughts today. Usually they are too esoteric for me.

Sep-02-12  Tiggler: <chrisowen> But I'm still puzzled because from your diagram <yonder in charge threaten g2 mate> because the other rook came over. What am I missing?
Sep-03-12  stst: Long sequence, but not too shabby...
27.Bg5+ f6
28.Bxf6+ Kxf6
29.fxe6 dis+ Ke7
30.exd7 dis+ Kd8 (Kd6 loses Q more quickly.)
31.Qxg8+ Kxd7
32.Rf7+ Kd6
33.Qxb8+ Kc5
34.Rc7 pinning the Q
The rest is cake.
Sep-03-12  Abdel Irada: "When one has eliminated the impossible, that which remains, however improbable, must be the truth."

— Sir Arthur Conan Doyle, author of the Sherlock Holmes mysteries.

<A sleuth for the truth> (Part 1 of 4)

This position may not be quite "insane," but it is definitely sufficient to induce a touch of neurosis in the would-be solver. Several red herrings beckon, and it takes some analysis to refute candidate moves 27. f6†? and 27. ♗xb4†; however, examination makes it apparent that neither line is sufficient. Meanwhile, of course, the bishop on d4 is immune unless taken with check because of the mate on g2. But White can't win without something forcing thanks to all the counter-threats, so this leaves <27. ♗g5†>. Here Black has four reasonable replies (which do not include 27. ...♔d6?, losing the bishop with check):

(1) 27. ...♗f6?
28. ♗xf6†, ♔xf6
29. fxe6†

White has achieved all he could hope for: open lines against Black's exposed king at no cost to himself.

(2) 27. ...♔e8?
28. ♕xd4, ♖xg5?
29. ♕h8†, ♔e7
30. f6†, ♔d6
31. ♕xb8†, ♔c5
32. ♖e5†

White is a rook ahead, and Black's threats on g2 have evaporated.

(3) 27. ...♔f8?
28. fxe6, dxe6
29. ♖xe6

The road forks:

(3.1) 29. ...♖xg5?!
30. ♖xc6, ♖xg4
31. hxg4

White enters the endgame with an advantage of the exchange plus two pawns, and Black's counterplay is easily stifled.

(See parts 2, 3 and 4 below)

Sep-03-12  Abdel Irada: <A sleuth for the truth> (Part 2 of 4)

(3.2) 29. ...♕c5?
30. ♗h6†, ♗g7
31. ♖xf7†!, ♔xf7
32. ♕g6†, ♔f8
33. ♕f6#

(3.3) 29. ...♕d7
30. ♗h6†, ♗g7
31. ♖b6! and then

(3.3.1) 31. ...♕xg4?
32. ♖xb8†, ♔e7
33. hxg4, ♖xb8
34. ♗xg7 or

(3.3.2) 31. ...♕b8/♕a7/♕c8/♕d8
32. ♖xb8, ♕xb8
33. ♕d7, ♕e8
34. ♕d6†, ♕e7
35. ♕b8†, ♕e8
36. ♕xb4†, ♕e7
37. ♗xg7†

After exchanging on e7, White will go into a rook ending with three pawns' advantage.

(3.4) 29. ...♕c7
30. ♕xd4, ♖xg5
31. ♕h8†, ♖g8
32. ♕h6†, ♖g7
33. ♖g6, ♕e5
34. ♕h8†, ♔e7
35. ♕xg7

White emerges a rook ahead. Thus all the weaker defenses are disposed of, leaving:

(See parts 3 and 4 below)

Sep-03-12  Abdel Irada: <A sleuth for the truth> (Part 3 of 4)

(4) 27. ...f6
28. fxe6!

Again Black has options:

(4.1) 28. ...dxe6
29. ♕xd4, fxg5

Not 29. ...♖xg5?; 30. ♕xf6†, when White wins a rook.

30. ♕f6†, ♔d7
31. ♕f7†

White either wins a rook with check or skewers the queen.

(4.2) 28. ...fxg5
29. ♖f7†, ♔e8
30. ♕xd4

The coming queen incursion on f6 will be fatal.

(4.3) 28. ...♖xg5
29. exd7†

Again there are choices:

(4.3.1) 29. ...♔f7/♔f8?
30. ♕xg5

White's attack persists; Black's doesn't.

(4.3.2) 29. ...♔d6
30. ♕xd4†

This queen-and-rook endgame is not trivial, but it should be won.

(4.3.3) 29. ...♔d8?
30. ♖e8†, ♔c7
31. ♖xb8!

If 31. ...♖xg4?; 32. d8=♕#. And if 31. ...♕xd7; 32. ♖b7† wins the queen.

(4.3.4) 29. ...♖e5
30. ♕g7† and now

( 30. ...♔e6??
31. ♖xf6# or

( 30. ...♔d6?
31. ♖xf6†

White wins the queen with check.

(See part 4 below)

Sep-03-12  Abdel Irada: <A sleuth for the truth> (Part 4 of 4)

( 30. ...♔d8
31. ♕g8† and either

( 31. ...♔xd7
32. ♕xb8 or

( 31. ...♔c7
32. ♕xb8†, ♔xb8
33. d8=♕†, ♔b7/♔a7/♕c8
34. ♕xd4

This leaves us with Black's most stubborn defense:

(4.3.5) 29. ...♗e5
30. ♖xe5†!, ♖xe5

Not 30. ...fxe5; 31. ♕xg5†

31. ♕g7† and one of

( 31. ...♔e6?
32. ♖xf6# or

( 31. ...♔d6!?
32. ♕xf6†, ♔xd7

Not 32. ...♖e6?; 33. d8=♕†

33. ♕xe5

This leaves us in another favorable queen-and-rook ending in which Black must guard against mating nets. And finally:

( 31. ...♔d8
32. ♕f8†, ♔xd7

If 32. ...♔c7; 33. ♕xb8†, ♔xb8; 34. d8=♕†

33. ♕xb8

This ending will require more play to bring home the point, but Black's threat on g2 has been removed, he has a two-pawn deficit, and his king remains exposed.

Sep-04-12  Dr. J: <Abdel Irada> Impressive! I haven't checked it all yet, but I can add the following: <(3) 27 Bg5+ Kf8 28 fxe6 dxe6> If 28...f6, 29 Qxd4, and the White Bishop is immune. <29 Rxe6


(3.3) 29...Qxd7 30 Bh6+ ... > Instead, 30 Re7 is an immediate, and pretty, win.


(3.5) 29... Qxc4 30 Rxf7+ Kxf7 31 Qf5+ leads to mate.

More later, I hope.

Sep-04-12  Abdel Irada: <Dr. J> Thank you for your clear-sighted emendations. Your analysis appears to be solid in both cases: the correction to (3.3) as well as the addition of (3.5), the latter examining a line I meant to include in my analysis but somehow forgot to post. :-/

As I indicated elsewhere, my analysis is likely to contain flaws. This puzzle is immensely complex, and I'm not sure one person can reach a definitive conclusion without consulting the nearly ubiquitous silicon oracle. And since the one place where that oracle cannot be found appears to be on my computer, my posts are necessarily based wholly on my all-too-human calculations.

Sep-05-12  Dr. J: Mine, too. One disadvantage of silicon is that it seems to have replaced dialogue among analysts as we try to tease out the truth of a position. The journey can be more fun than the destination.
Premium Chessgames Member
  chrisowen: <Tiggler> Coming back to you saw in a f2 raid rookg8 off back king

taker myth in white escape at g3 lock in g5 then Qg7+ damage in d8

as me a golly lord in for Slavojub never in got remedy it drag on in

g5 short resistance in coping for pawn it green mind in e6 instead

man f5 tis king at asking bishop f6 to g5 yeah it hot in accordence

black in king ply it pawnf6 look socket it he in b8 over.

Sep-06-12  Abdel Irada: <Dr.J.>: Not only that, but there is a standing assumption that the oracle is infallible.

While I agree that strong computer programs *are* nearly flawless in certain aspects of the game and in certain kinds of positions, I also think that they perform far worse in others, particularly where there is no well-defined tactical objective. This is why so often we find a program, confronted with such a position, appraising it as slightly favoring one player and then, after a few moves that come easily and naturally to experienced human players, suddenly and seemingly inexplicably reversing its assessment.

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