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Victor Bologan vs Ian Rogers
Bundesliga (1995/96), GER
Scandinavian Defense: Main Lines. Mieses Variation (B01)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-17-11
Premium Chessgames Member
  scormus: I never heard of the Scandinavian defense before, is it what we used to call Centre Counter Gambit and told our school team mates not to play. Looks like W gets one of those nice attacking positions typical against the Sicilian, only B doesnt get the open c-file
Apr-17-11  M.Hassan: "Insane" White to play 20.?
Sides are equal
I started with :
20.Bxe6 fxe6
21.Qxe6+ Nxe6
22.Rxe6 Kf8
And next 7 moves proves to me that Black can win!
23.Nxh5 fxg5
24.Bxg5 Qd7
25.Rf6+ Bf7
26.Ng6+ Kg7
27.Nxh8 Rxh8
28.Rxd6 Qxd6
29.Bf4+ Qg6
30.Rg6+ Kxg6
0-1
------------
Very difficult puzzle.I Could not solve it
Apr-17-11
Premium Chessgames Member
  ZUGZWANG67: Missed it.
Apr-17-11  EXIDE: Too many combinations for me to figure out. On a gut level g6 was my choice, however I did not find any win for white. I am still not convinced that 21. Bxe6 wins for white. I have tried but have no answer for 21--,NxB. But that is me talking, an expert may be able to win.
Apr-17-11  stst: Quite many variations, one plausible line:
20.Qe4 (eying g6 wit P advance) Pxg5
21.Nxg5 Pf6 (Rg8 is also playable.)
22.Nxe6 Nxe6
23.Qxe6 Be7
24.Qxf6 Rf8
25.Qxf8 ... if (A) Kxf8 26.Rg8#
if (B) Kd7 26.Rxe7+ Qxe7
27.Qxa8 and Bk can resign when WQ can sweep the Q-side pawns.
Apr-17-11  sevenseaman: Was traveling yesterday and had a look at this Sunday puzzle.

Is a tough one and I can give myself no 'airs' of coming close. The feature common between the text solution and my mite is that e6 is the hinge.

Motoring around the state of Punjab I had a small break and I saw this beauty on the Sunday Chess page of the 'Times of India'. Try it.

Rustom Kasimdzhanov-Vishwanathan Anand.


click for larger view

w

White to play and win. Vishy did a 10 move#.

Apr-17-11  newton296: I didn't even try to unwind this mess!
Apr-18-11
Premium Chessgames Member
  patzer2: <Jimfromprovidence> and <computerchessguy> Looks like 21...Qd7! is a really good defensive move. Can't find any lasting advantage for White.

One possibility played out with Friz to a draw went:

21... Qe7! 22. Bb3 Qxe2 23. Rxe2+ Kd7 24. Bc2 Rag8 25. Rge1 Ne6 26. Bxg6 Rxg6 27. Re4 Rg2 28. R1e2 Ng5 29. Rxh4 Rxh4 30. Nxh4 Rh2 31. Be3 Nxh3 32. Nf5 Bc7 33. Rd2 Nf4 34. Kc2 Ke6 35. Ng7+ Kd7 36. Bxf4 Bxf4 37. Re2 Bg3 38. Nf5 Bxf2 39. Re7+ Kd8 40. Rxb7 Bxd4+ 41. Kb3 Bc5 42. Kc4 Bg1 43. Ne7 Rh4+ 44. Kb3 c5 45. Nc6+ Kc8 46. Rxf7 c4+ 47. Ka2 Rh5 48. Rxf6 Kd7 49. b4 axb4 50. cxb4 Rh2+ 51. Ka3 Re2 52. Rg6 Bf2 53. Na5 Re4 54. Rc6 Re3+ 55. Ka2 Re2+ 56. Kb1 Re1+ 57. Kc2 Ra1 58. b5 Ra2+ 59. Kd1 c3 60. Rc4 Kd6 61. Nc6 Kd5 62. Rxc3 Rxa4 63. Kd2 Ra2+ 64. Kc1 Bc5 65. Kb1 Re2 66. Rc1 Rg2 67. Na5 Bd4 68. Nc4 Rg1 69. Rxg1 Bxg1 =.

Apr-18-11  sevenseaman: I've had a deeper look at the Sunday puzzle and its text solution.

I am more inclined now to agree with <tacticalmonster> that it is a 'non-puzzle' and also with <dzechiel> feeling the need for a worser adjective than 'Insane' to classify the difficulty; Or even with <Once> concluding the 'mess' isn't worth unraveling.

Dec-12-12  jvasea1990: Houdini 2.0c w32
0.54 (depth 22) 20.Qe3 fxg5 21.Nxg5 Qe7 22.Ne4 O-O-O 23.Nxd6+ Qxd6 24.Bc2 Nd5 25.Qe5 Bf3 26.Qxd6 Rxd6 27.Rg7 Rd7 28.Bd3 b6 29.Kc2 Kc7 30.Reg1 Kb7 31.Bg5 c5 32.dxc5 bxc5 33.Kb3

( 0.50 (depth 22) 20.Bc2 Qe7 21.g6 fxg6 22.Bxg6+ Bxg6 23.Rxg6 O-O-O 24.Qe4 Rdg8 25.Rxg8+ Rxg8 26.Nxh4 Qd7 27.Nf3 c5 28.h4 Qxa4 29.h5 f5 30.Qe3 cxd4 31.Nxd4 Qd7 32.Qf3 Kb8 33.h6 Qf7 34.c4)

( 0.45 (depth 22) 20.g6 Bxg6 21.Bxe6 Qe7 22.Qc4 fxe6 23.Rxg6 O-O-O 24.Reg1 Kb8 25.Qb3 Ne8 26.Kb1 Bc7 27.Be3 Rh7 28.Qc2 Qf7 29.Qd3 Rh8 30.R6g4 e5 31.Qc2 Qe6 32.dxe5 fxe5 33.Ng5 Qd5 34.Ne4)

( 0.39 (depth 21) 20.Qd3 Bg6 21.Qc4 Nd5 22.Bc2 f5 23.Qb3 Qb6 24.Qxb6 Nxb6 25.b3 Nd5 26.Ne5 Bxe5 27.Rxe5 Kd7 28.Kb2 Kc7 29.Rge1 b6 30.c4 Nb4 31.Bb1 Kb7)

Oct-31-21  Brenin: The obvious tries are 21 Bxe6 and 21 Rxg6, e.g. 21 Bxe6 Nxe6 22 Rxg6 fxg6 23 Qxe6+ Kf8, or 21 Rxg6 fxg6 22 Bxe6 fxe6 23 Qe6+ Kf8, givng the same position, with White's attack looking rather underwhelming. I don't see why in the game Black didn't reply Nxe6 to White's 21 Bxe6. A puzzling Puzzle. What am I missing?
Oct-31-21
Premium Chessgames Member
  Teyss: Was a baked puzzle back in 2011 one move earlier, still is. "Loony" instead of "Insane".
Oct-31-21  Olavi: <Brenin> You are not missing anything, it is just a promising position for white, perhaps 24.Qg4 g5 25.Re6 and sacrifices on g5 are looming.
Oct-31-21
Premium Chessgames Member
  Dionysius1: It makes me wonder. I'm not generally good enough for the late in the week puzzles, but...

1. Does the puzzle setter sometimes know the game continuation isn't the best, and expect us to find something else? A whole new level of complexity if so, or maybe just an opportunity to talk through alternatives. Not very inspiring for this patzer!

2. Do some strongish players lose because they go in for flashy combinations that if they were weaker they wouldn't see, and if they were stronger they would be able to calculate don't work? Of course they do

3. Is it better to be a weak defender than a strongish one, because I wouldn't "see ghosts" or "fall for bluffs", and just let the attacker get on with self destructing?

4. "The road to chess mastery: how to win by not being too smart" - that kind of thing?

Oct-31-21  AlicesKnight: I saw the combination of Rxg6 and Bxe6 threats as the key but was unsure of the best way round. The Black K is batered from pillar to post.
Oct-31-21  goodevans: I'd expect Sunday puzzles to have either a multitude of candidate moves or candidate moves that are obscure and surprising but here it's a straight choice between 21.Bxe6 or 21.Rxg6 and, as <Brenin> points out, if Black accepts the sac they end up the same. I prefer 21.Bxe6 as declining the sac simply means White has a free pawn.

Here's the position after <21.Bxe6 Nxe6 22.Rxg6 fxg6 23.Qxe6+ Kf8 24.Qg4 g5> which is Black's only attempt to hang on to the sac'd material.


click for larger view

<Olavi>'s 25.Re6 "and sacrifices on g5 are looming" looks pretty good but White can even sac straight away: <25.Nxg5 fxg5> leaves Black hopelessly exposed and now 26.Re6, 26.Bxg5 and 26.Qf5+ all look devastating.

Oct-31-21  mcguigan97: Not sure why this is an 'insane' game. 21. Bxe6 leads to a 0.95 advantage with the simple fxe6. Not exactly amazing. Qe7 is not bad either. Instead black plays 21...Kf8 which is a blunder.
Oct-31-21
Premium Chessgames Member
  Jimfromprovidence: I completely missed the best response if 21...Qe7 back in 2011, namely 22 Bc8!


click for larger view

If black takes the bishop with 22... Rxc8, then 23 Qc4.

If 22... Be4, then 23 Bxb7.

Oct-31-21  awfulhangover: Insane indeed. 21.Bxe6 or 21.Rxg6? That is the question. Both lead to a slight plus for white, according to compy.
Oct-31-21  goodevans: <Jimfromprovidence> Against 21...Qe7 I had simply 22.Qc4 (to avoid exchanging Qs) 22...Nxe6 23.Rxg6 regaining the sac'd pawn with the prospect of soon winning Black's weak pawn on h4. Your <22.Bc8> is certainly a lot more cunning than that.

If after your suggested <21...Qe7 22.Bc8 Rxc8 23.Qc4> play continues <23...Be4 24.Rxe4 Qxe4 25.Re1> Black will end up with two Rs for the Q and it's not obvious to me that White's better (although SF confirms that he is). If this is what we're meant to have seen then maybe this is a proper Sunday puzzle after all.

Oct-31-21
Premium Chessgames Member
  chrisowen: Quick o vet Bxe6 hocum a cuff muff aid fluffers lev quick o vet cigar cia v its gab bag vint bam marbles vent death hent think quick it squaw its woof poverty pj puzzle it is vint recluse it wad other bind bemuse its z nah vent qg axled it off jump vibrant vat hand effaces flipper eg flush fades its dank hog fluff v icicle bud x hub cad v ho crewed it herd cow v duff good hug back cab u c v icarus it hag u if ooo gag bob v it diffused its room adept gi v ha other ye eh hun na hob ja v judged its be gads uvray reverse escry terrific v i god c leo ft gab cast cd verify vacuum dote roof v i brother bind ovid rolo fage its o negligent bam c greed its evict refers vent ovid bad touch uba fx tod u do it vint e6 verdict killer man ja rob v c hawk land i vent pages he tie it eh fang george its aint be6 drag on uno c vertical bert in now duff ah ted its back i v o resume business g6 ball roger guv thou shalt not pass vent grain rose its return on investment angered it i rear vast song 2 rids little nob it eddy lav i rats put right ave its o Bxe6 clung!
Oct-31-21  mel gibson: Didn't have a clue.

Stockfish 14 says:

21. Bxe6

(21. Bxe6 (♗b3xe6 f7xe6 ♖g1xg6 ♕d8-e7 ♕e2-e4 O-O-O ♖e1-g1 ♘c7-d5 ♔c1-b1 ♔c8-b8 c3-c4 ♘d5-b4 ♗d2-h6 ♕e7-h7 ♕e4xe6 ♗d6-g3 ♕e6-f5 ♗g3xf2 ♖g1-g4 ♗f2-g3 ♕f5xa5 ♘b4-a6 ♗h6-d2 c6-c5 ♔b1-a2 ♖d8-g8 ♖g6xf6 ♖g8xg4 h3xg4 h4-h3 d4xc5 ♕h7-c7 g4-g5 h3-h2 ♘f3xh2 ♖h8xh2 ♕a5-b6 ♕c7-c8 ♗d2-c3 ♘a6xc5 ♕b6-b4 ♘c5-d7 ♖f6-f7 ♕c8-c6) +1.44/34 253)

score for White +1.44 depth 34.

Oct-31-21
Premium Chessgames Member
  agb2002: White is one pawn down.

A quick scan yields funny lines like 21.Bxe6 Bh5 22.Bxf7+ Kxf7 23.Qc4+ Kf8? 24.Bh6+ Rxh6 25.Q(R)g8# or 21.Bxe6 Nxe6 22.Rxg6 fxg6 23.Qxe6+ Qe7? 42.Qxd6, obviously not forced.

In any case, they suggest 21.Bxe6. I'd probably play it and go watch other games.

Oct-31-21
Premium Chessgames Member
  Jimfromprovidence: <goodevans> This is Chessgames' output after 19 plies.

21...Qe7 22.Qc4 Nxe6 23.Rxg6 O-O-O 24.Rg4 Kb8 25.Kb1 Qd7 = +0.15 (19 ply)

But when you ask for more plies the outcome changes to the following:

1) +1.99 (34 ply) 22.Bc8 Rxc8 23.Qc4 Be4 24.Rxe4 Qxe4 25.Re1 Qe6 26.Rxe6+ fxe6.

So in 10+ years a little more clarity emerges, perhaps?

Oct-31-21
Premium Chessgames Member
  Steve Holloway: I came up with 21.Rxg6 fxg6 Bxe6 Kf8 d5 cxd5 Qd3 which should win
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