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Suat Atalik vs Bernd Baum
Groningen Open (1998), Groningen NED, rd 4, Dec-23
Modern Defense: Averbakh Variation (A42)  ·  1-0



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-24-13  Nick46: Gorilla, You're a Desperado
Premium Chessgames Member
  mike1: 30... b6 is certainly not the best.
Does White got anything after Ke8?
Apr-24-13  Nerwal: 30... ♔e8 is met by the same 31. ♖xd6. 31... cxd6 32. cxb7 ♗xb7 33. ♕e6+ and obviously black isn't doing too well. Black is probably just busted at move 30 and even earlier (maybe after 26. c6)
Apr-24-13  morfishine: I quickly settled on <31.Qf7> originally noting "Its all over after <31.Qf7> since Black cannot defend the threatened 32.Rxd6+

Play might continue <31...Rg7 32.Rxd6+ cxd6 33.c7#> or something along this line

After seeing the solution, I thought "Oops" and quickly re-huddled hoping 31.Qf7 also wins and got this slower solution: 31.Qf7 Be6 32.Rxd6+ cxd6 33.c7+ Kc8 34.Qxe6+ Kxc7 35.Nd5+ Kb7 36.Qd7+ Kb8 37.Qxd6+ Ka7 38.Qc7+ Ka8 39.Nxb6#

PM: After reading the posts, its good to see 31.Qf7 at least "wins easily" although 31.Rxd6+ "crushes"; The difference between a Grandmaster and "Grinding Patzer" :)

Apr-24-13  Abdel Irada: <<•> The loneliest number <•>>

Pity the black king, for he is about to be isolated in a countryside filled with his enemies, and his friends are too distant to come to his aid.

Like an adventurer-king in a medieval romance, he has gone a-questing far from the safety of his palace, with only a chaplain and his doughty war-horse for company, and an escort of three footmen to guard him.

But here is the ambush, and here the archers:

<<•> 31. Rxd6†! ... >,

and, his horse fallen beneath him, he must defend himself afoot.

The footmen will do their limited best, so of course the impudent rook that aimed the bow is killed in turn, for to leave it alive would merely leave the king still worse beleaguered.

<<•> 31. ...cxd6

32. Qf7 ... >

Now this is the worst of it. A powerful enemy force has cut off the king's retreat; he is trapped as surely as was Roland in the Pyrenees. But sound his horn though he may, no one will ride to his aid in time.

The threat is 33. c7#, so the prelate must give up his life to save, for a moment, that of his liege.

<<•> 32. ...Be6

33. c7†, Kc8

34. Qxe6† ... >

Now the king is bereft indeed. His guards are loyal, but there is nothing they can do against an enemy so numerous and powerful.

The sole choice left him: To kill the hostile foot soldier that assails him, or to perish unavenged.

< (1) 34. ...Kxc7
35. Nd5† ... >

The pikeman has been dispatched; this much is a relief. Not so the cavalry detachment that takes the opportunity of the brief combat to leap into the fray.

The king now has three ways to try to dodge.

< (1.1) 35. ...Kd8
36. Qe7†, Kc8
37. Qc7# >

< (1.2) 35. ...Kb8
36. Qxd6†, Ka8 (best)
37. Qc6† >

It's mate in two.

< (1.3) 35. ...Kb7
36. Qd7†, Ka8 (best)
37. Qc6† >

As above, so here. The moves may transpose, but the pattern is well formed: the king will be forced to a8 with a queen check from b6 or c7, and then the knight will move to the other of those squares for the finish.

Since fighting fails, what if the king merely flees?

< (2) 34. ...Kb7
35. Qd7!, Rc8 >

The threat of queening with double check and mate can be met only by this or 35. ...Ka8, which fails to the same continuation.

< 36. Qc6†, Ka7
37. Kb2 >

Black is indeed in a bad way. He cannot even delay for a move White's 38. Ra1†, and his longest-standing defense is 37. ...Rxc7 38. Ra1†, Kb8 39. Ra8#, when White needn't even bother taking the rook.

Perhaps this is why kings stopped going a-questing without a proper guard.

Apr-24-13  TomOhio: So what is White's continuation if

31. Rxd6 Ke7
32. Bb3 Rg7

The 32. Bb3 offers some interesting mating possibilites, but is not conclusive.

Now the Rook can really be taken, so it's either retreat or attempt to sacrifice the exchange with the Bishop. If at d7, the White recapture with the c-pawn is met with Rd8, and if at e6 (if Bishop takes, it's over) then Kf7. Apparently, Black can escape all the way to the h-file if necessary.

I feel I must be missing something.

Premium Chessgames Member
  TheTamale: Ugh, I saw the exact move combination--indeed, it's about the only one on the board--I just couldn't see that it threatened anything!
Premium Chessgames Member
  keypusher: Hromadka vs M Schreiber, 1936
Apr-24-13  James D Flynn: Black is a pawn up, it is a passed pawn, however it is doubled and will prove extremely difficult to advance. White’s B is hemmed in by his own pawns whereas only the h5 black pawn is on the same colour as his B, however that B currently has no square to which h he can move without being taken. White has more space and can more easily occupy the open a file and his N can occupy the excellent central square d5 but not immediately because that would unpin the Black N and lose the Q. Black has the immediate threat of opening the g file for his R and winning a pawn by gxh4. White can counter that by playing 31.hxg5 followed by 32.g4 threatening Rxh5. Black can reply h4 creating a passed pawn which can be blocked by Ra3 and will be subject to attack. White had better try to exploit his extra space immediately because in the long term his bad B will tell against him. 31.Qf7(threat 32.Rxd6+ cxd6 33.c7#) Bg4(Rg7 or Rh7 fails against the aforementioned Rxd6+. Only a B move providing an escape square foils the immediate mate) 32.Rxd6+ cxd6 33.Qb7+ Kd8 34.c7+ Ke8(not Ke7 35.c8=N+ Ke6 Qe7#) 35.fxg4 Kf7 36.c8=Q+ Kg6 37.Qf5#.
Apr-24-13  MountainMatt: This is easy for Wednesday - 31. Rxd6+ cxd6 32. Qf7 and black must sac his bishop to avoid immediate mate...and that's as far as I care to tax my little brain this morning.
Premium Chessgames Member
  Phony Benoni: <TomOhio> After <31.Rxd6+ Ke7 32.Bb3 Rg7>:

click for larger view

33.Re6+ looks like a killer. After 33...Bxe6 34.Qxe6+ Kf8 35.Rd1, the rook will reach d8 with deadly effect. A funny line would be 35...Rgh7 36.Rd8+ Kg7 37.Qf7#:

click for larger view

Sort of an "Alekhine's Popgun Mate". If Black declines the rook with 33...Kf8, then 34.Rd1 again, when fleeing by 34...Kg8 35.Rxf6+ just loses the queen--and there is probably even better.

Also, after 31.Rxd6+ Ke7 32.Nd5+ is interesting but 32.Bb3 looks more conclusive. White could also just retreat the rook with an extra piece, but what fun is that?

Black would have good defenses if White were attacking down the i-file, but the Western Front is where the action is.

Premium Chessgames Member
  Phony Benoni: By the way, if Black wants to string it out 32...Be6 may be the best chance, though it's already been shown to lose, since it at least guards d5. After desperate moves like 32...Bf5, White can play 33.Nd5:

click for larger view

Threatening 34.Qe7+ Kc8 35.Qc7#. Black appears to have nothing besides putting something on seventh rank, but again White can just ignore it: 33...Qg7 34.c7+ Kc8 35.Nxb6+ Kb7 36.c8Q+ (double check!) and mate next move.

Chess is so much fun when you can scorn your opponent's feeble attempts to buy you off.

Apr-24-13  gofer: <31 Rxd6+ ...>

31 ... cxd6 32 Qf7!

The threat of c7# means white will have to jettison Bc8 and from there its all down hill very quickly.

<Crafty EGT> refuses the sacrifice and lasts another 24 moves...

Apr-24-13  snakebyt: rook sac and I pushed the c-pawn up to check again then Qf7
Apr-24-13  BOSTER: <FSR> <31.Rxd6+ cxd6 32.Qf7 threatens c7#. Any bishop move hanghs the bishop. First!>.

But who needs the bishop when you sacr. the rook for the knight?

Premium Chessgames Member
  doubledrooks: 31. Rxd6+ cxd6 32. Qf7 with the threat of 33. c7# should do the trick.
Premium Chessgames Member
  kevin86: The knight will come in next...and mate will follow.
Apr-24-13  Jack Kerouac: Of course we know <chrisowen> is not a human. Does that make the machine a sort of Chess Games comment-bomber? In need of the Cyber-Attack game?
Premium Chessgames Member
  ajk68: Does Rxd6+ win any faster than Qf7?
Apr-24-13  peterjam: If black is prepared to do anything other than resign 31 Qf7 is about as fast as Rd6 e.g.31 Qf7,Qg7 32 Rd6,Bd7 33 Rd7, Kc8 34.Rc7,Kb8 35 Rb7, Kc8 (35...Ka8 36 Qa2#)36 Qe6, Kd8 37 Rd1 or 31 Qf7,Be6 32 Rd6 transposes 32... cd 34 Qe6 is about as good as c7. Note that 31 Qf7 foils the attempt to survive some extra moves by not capturing the rook on d6 with Ke7. Not especially advocating Qf7 so much as saying that Rd6 is really no more "crushing" than Qf7.
Apr-24-13  TomOhio: <Phony Benoni:

[TomOhio] After [31.Rxd6+ Ke7 32.Bb3 Rg7]:

33.Re6+ looks like a killer. After 33...Bxe6 34.Qxe6+ Kf8 35.Rd1, the rook will reach d8 with deadly effect. A funny line would be 35...Rgh7 36.Rd8+ Kg7 37.Qf7#

Sort of an "Alekhine's Popgun Mate". If Black declines the rook with 33...Kf8, then 34.Rd1 again, when fleeing by 34...Kg8 35.Rxf6+ just loses the queen--and there is probably even better.>

But, if as you say,

31. Rxd6+ Ke7
32. Bb3 Rg7
33. Re6+ Kf7 (BxR = disaster)
34. Rd1


34. ... Kg6 (NOT Kg8.) Escape complete, no?

Apr-24-13  cormier:

click for larger view

Analysis w32:

1. (#13): 32...Be6 33.Qxe6 Qg7 34.Qxd6+ Ke8 35.Bb3 Qe7 36.Qb8+ Qd8 37.c7 Ke7 38.cxd8Q+ Rxd8 39.Qb7+ Rd7 40.Nd5+ Kf8 41.Qxd7 Rh7 42.Qd6+ Kf7 43.Qe7+ Kg8 44.Nxf6+ Kh8 45.Qxh7# 2. (#5): 32...Bh3 33.Nd5 Rg7 34.c7+ Kc8 35.Nxb6+ Kb7 36.c8Q+ Kxb6 37.Qa6# 3. (#5): 32...Bg4 33.Nd5 Rg7 34.c7+ Kc8 35.Nxb6+ Kb7 36.c8Q+ Kxb6 37.Qa6#

Apr-24-13  The17thPawn: In the event Dr. Baum is a Medical Doctor than the pun, "Physician heal thyself", practically writes itself:)
Premium Chessgames Member
  Phony Benoni: <TomOhio> Actually, I didn't consider <31.Rxe6+ Ke7 32.Bb3 Rg7 33.Re6+ Kf7>:

click for larger view

I only looked at 33...Kf8 and 33...Bxe6. Careless of me to miss that. And it appears you're right that 34.Rd1 Kg6 isn't very effective in this position.

Being finally at home, I took the modern way out and fed the engine, which recommended 34.hxg5! Now 34...Qg6 or 34...Qxg5 lose the queen, and 34...Rxg5 gets mated quickly, one line being 34...Rxg5 35.Rd6+ Ke7 36.Qf7+ Kxd6 37.Rd1#

That leaves 34...Qh7, when White has a number of good continuations. Admittedly there doesn't seem to be a mate in there somewhere, but 35.Rxf6+ Ke8 36.Rh6 Qg8 37.Qxg8+ Rhxg8 38.Bxg8 pockets an exchange in addition to all the spare change White has been picking up.

Looking at the alternatives, 31...Ke7 attempting to flee is clearly Black's best chance, But the basic outline of the position still holds: Black's pieces aren't effective defensively--and he's a piece down to boot.

Apr-25-13  Abdel Irada: <Phony Benoni>, <Tom Ohio>:

I looked a bit at the flight attempt 31. ...Ke7 myself, but I think 32. Nd5† looks quite strong.

< 32. ...Kxd6
33. Rd1 ... >

Black has (in essence) four choices.

< (1) 33. ...Ke6
34. Nxb6†, Ke7
35. Nxc8†, Kf8 >

Not (a) 35. ...Rxc8 36. Rd7†, with mate next move.

< 36. Rd8†, Kg7
37. Rd7†, Kg6
38. Ne7† >

White wins the queen if he has nothing better.

< (2) 33. ...Be6?
34. Nf4†, Ke7
35. Qxe6† >

White mates in two.

< (3) 33. ...Rd8
34. Nxb6†, Ke7
35. Nxc8† >

White mates in four.

< (4) 33. ...Rg7 >

This is what I meant about "in essence." Black can also contest the seventh with 33. ...Rh7/Qg7/Qh7.

< 34. Nxb6†, Ke7
35. Nxc8†, Rxc8
36. Bb3, f5
37. Qxc5†, Ke8 >

Not (b) 37. ...Kf6 38. Rd6†! .

< 38. Qxe5†, Re7
39. Qxf5 >

White already has three pawns for the exchange, retains the initiative against an insecure king, and has potential threats with his advanced pawns.

This appears to be Black's toughest defense, and the win will not be trivial, but a win I'm fairly sure it is. However, since I'm analyzing without benefit of engine, I may be missing a defense.

Black can, of course, decline the rook after the knight check, but I will omit analysis of those lines because Black is simply a piece down.

I'd be interested in how the engines rank 32. Nd5† as compared with 32. Bb3, or if in fact they simply transpose.

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