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Helgi Olafsson vs Jonathan Levitt
Reykjavik Open (1990), Reykjavik ISL, rd 2, Mar-18
English Opening: Symmetrical Variation. Hedgehog Defense (A30)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jul-01-12
Premium Chessgames Member
  FSR: I had a vague sense of déjà vu seeing this position, and immediately started looking at sacrifices on e6. I tried 17.Ng5 Bxe2 18.Rxe6, but 18...Na6 seems like a sufficient response. After a few minutes of thought came up with 17.Rxe6!! fxe6 18.Ng5! Bxg2 19.Qxe6+!! and Black stands up. Now I see that I commented on the game last year, so I obviously <did> see it before. I would have thought that I would more vividly remember such a dramatic combination.
Jul-01-12  PhilFeeley: Rxe6 jumped out at me immediately, but white has so many threats, I wondered if there was a better one. I didn't play it all the way out, so no points for me..
Jul-01-12  Marmot PFL: Although black is behind in development it's not easy to find a combination here. In a game I would probably play the routine 17 Qxc5 without too much thought. The line played leads to bigger advantage but black could improve with 20...Qxb6 pinning the knight and seeking to get the queens off.
Jul-01-12
Premium Chessgames Member
  chrisowen: Lovely coup de grace for light it transpires my line going horse in

g5 means black can escape via f7 so looking over evidence I quickly

found 17.Rxe6 and reverse proceedings so ng5 has more impact it try

in HO gives rook over and now in g5 provides winningformula as h6 is

necessary on low king air and bishop can be whisked off as lsb is

key in such lines for exemplified nf6 gains rooka8 so my idea is

find middle man road for big gains good again:

<17.Rxe6 fxe6 18.ng5 h6 19.Nxe4>

A cod rod in ghost it the back door black rank is weak again so

given deluxe find gamble in rooke6 level off equlibrium road is long

to conclude e6 eat it tender e3 joins fray c5 off and mop up d7

queen rook bishop all converge for one climbing around d6.

Jul-01-12
Premium Chessgames Member
  Jimfromprovidence: <stukkenjager>
<How does white win after 17.Rxe6 fxe6 18.Ng5 h6 19.Nxe4 Nc6 20.Nxc5 Qb6

17.Qc5: looks at least equaly good.>

This is good point. Even with all of these deep moves, white wins very little material at first.

It seems to me that the logic of 17 Rxe6 instead of Qxc5 is that this line is totally attacking, as it exposes the king and prevents it from moving off of g8. It's up to black to ably defend this vulnerable position and he did not succeed.

The continuation 17.Rxe6 fxe6 18.Ng5 h6 19.Nxe4 Nc6 20.Nxc5 Qb6 might continue 21 Nxd7 Qxe3 22 fxe3 Rac8 23 Bxc6 Rxc6 24 Nf6+ Kf7 25 Rxd8 Kxf6.


click for larger view

I'm sure that this is not an easy win for white.

Jul-01-12  BOSTER: Black, being a pawn up, has couple disadvantages: the weakness on back rank, poor development ( rook a8 and knight b8 out of game) , the pinned bishop on e4.

White has the nice camp for his king, and pressure on the opened d file.

The main line is:
17.Rxe6-the break in the most protecting place, attacking the bishop e4. 17...fxe6, if black bishop moved Re8+ with mate.
18.Ng5 using the pinned bishop on e4,and controling the f7 square. 18...Bxg2
19.Qxe6+ with mate in couple moves.

if after 18 Ng5 18...Nc6 19.Qxe4 g6(forced) where white has a strong attacking chances.

Jul-01-12  znsprdx: what a delightful demolition...the hidden Philidor mate threat was a treat
Jul-01-12  BlackSheep: Wow , that was tricky I didnt get it as such I saw (among other lines I couldnt make work) Rxe6 , fxe6 , Ng5 , h6 , Nxe4 , Nc6 and then my minds eye told me that apart from stealing c5 black was not in any imminent danger and didnt/couldnt/wouldnt continue the line , but I dont think i'll ever be able to calculate 11 moves deep into a puzzle with so many branches my mind wont allow it .
Jul-01-12  ricardolopez: <Jimfromprovidence> In your line I think 21. Rxd7 is better. A posible line: 19...,Rxd7; 22. Qxe6+, Rf7; 23. Bd5, Kd8; 24. Qd8+, Kh7; 25. Qe4*, g6; 26.Bxf7, Kxf7; 27. Qxa8, Qxc5; 28. Qd5. Trhree pawns by the knight, is that worthy in this position? In this line the main problem to W is the point f2 (R & Q pins the WK) Case of 23..., Rd8, then 24. Qxf7+,Kh8 , 25. Ke6
Jul-01-12  heuristic: two better defensive moves?
20...Qb6 21.Nxd7 Qxe3
21...Re8 22.Qc5 Rac8
Jul-01-12  bachbeet: I thought of taking that e6 pawn with the rook but really didn't see any following advantage. No points for me.
Jul-01-12
Premium Chessgames Member
  sorokahdeen: Time out for a Tal phrase: "Head-Spinning complications."
Jul-01-12  agb2002: White is a pawn down.

The black castle is intact but defenseless. The rook on d8 is defenseless. Black's back rank will remain weak until Black plays the knight. The black bishop is a potential target.

These details suggest the line 17.Ng5 Bxg2 18.Rxe6 fxe6 19.Qxe6+ and mate soon. However, Black could play 18... Na6, which leads one to consider a different move order, starting with 17.Rxe6:

A) 17... fxe6 18.Ng5

A.1) 18... Bxg2 19.Qxe6+ Kh8 (19... dxe6 20.Rxd8#; 19... Kf8 20.Qf7# or 20.Nxh7#) 20.Nf7+ and mate in three.

A.2) 18... Bc6 19.Qxe6+ is almost identical to A.1.

A.3) 18... Bd5 19.cxd5

A.3.a) 19... exd5 20.Bxd5+ wins the queen.

A.3.b) 19... e5 20.d6 Nc6 21.Bd5+ Kf8 (21... Kh8 22.Nf7+ Kg8 23.Nxd8+ and 24.Nxb7) 22.Nxh7+ Ke8 23.Qg5 Rdb8 24.Qxg7 wins.

A.3.c) 19... Re8 20.dxe6 Nc6 21.Dd3 g6 22.exd7 Re7 23.Qd5+ wins the knight.

A.4) 18... Nc6 19.Qxe4 g6 20.Qh4 h5 (20... d6 21.Bxc6; 20... d5 21.cxd5 exd5 22.Bxd5+) 21.g4 (21.Nxe6 dxe6 22.Rxd8+ Rxd8 23.Qxd8+ (23.Bxc6 Rd1+) 23... Nxd8 24.Bxb7 Nxb7) 21... Kg7 (to answer 22.gxh5 with 22... Rh8) 22.Bxc6 Qxc6 (22... dxc6 23.Nxe6+) 23.Ne4 Rf8 24.gxh5 and White seems to have compensation for the exchange.

B) 17... f5 18.Ng5

B.1) 18... Nc6 19.Rxe4 fxe4 20.Qxe4 g6 21.Qd5+ Kg7 22.Qf7+ Kh6 23.Qxh7+ Kxg5 24.Qh4+ Kf5 25.Bh3+ Ke5 26.Qf4#.

B.2) 18... Bxg2 19.Re8+ Rxe8 20.Qxe8#.

Jul-01-12  I Love You: Nice! Rxe6! is a surprise attack by White and Black would need a strong nerves to counter White attack.
Jul-01-12  ounos: I saw the key point after a minute or so! Rxe6, Ng5, and then Bxg2 is impossible due to Qxe6+. I didn't examine the defences after that though, just noticed this tactical point.
Jul-04-12  LoveThatJoker: Sunday, July 1st, 2012

Cool! An Olafsson puzzle!

<17. Rxe6! fxe6>

[17...Kf8 18. Rxe4 ; 17...B moves 18. Re8+ mating; 17...f5 18. Ng5! Nc6 (18...h6 19. Nxe4 ) 19. Rxe4! fxe4 20. Qxe4 ]

<18. Ng5! h6>

(18...Bxg2 19. Qxe6+ mates whether White's Q is captured or not; 18...Bd5 cxd5 ; 18...Bc6 19. Qxe6+! )

<19. Nxe4> as White dominates on the squares c5, d6 and e6; while the the h1-a8 diagonal is weak as well.

LTJ

Jul-04-12  LoveThatJoker: Week of Monday, June 25th 2012 to Sunday, June 1st 2012 finished with 6/7 for a pass!

LTJ

Mar-17-14
Premium Chessgames Member
  LIFE Master AJ: An absolutely brilliant game ...

Its # 87 in the Soltis book, "The 100 Best."

Sep-05-21
Premium Chessgames Member
  GrahamClayton: The rook sacrifice 17. Re6 can't be declined, as 17...Nc6 or any queen move drops the bishop on e4, while 17...Bc4/Bf5/Bg6 allows 18. Re8+ Re8 19. Qe8#.
Oct-13-24  mel gibson: No - I didn't see that.

Stockfish 17 sees only a minor advantage:

17. Rxe6

(17. Rxe6 (1.Rxe6 fxe6 2.Ng5 h6 3.Nxe4 Nc6 4.Nxc5 Qb6 5.Nxd7 Qxe3 6.fxe3 Rac8 7.Bxc6 Rxc6 8.Nf6+ Kf7 9.Rxd8 Kxf6 10.Rd7 a6 11.Ra7 g5 12.Kf2 g4 13.a4 Kf5 14.Ra8 h5 ) +1.42/62 503)

score for White +1.42 depth 62.

Oct-13-24
Premium Chessgames Member
  An Englishman: Good Evening: Flubbed it then, flubbed it now. Eh, bien. Solved all but three puzzles this week, can't complain.
Oct-13-24  stacase: <mel gibson: No - I didn't see that.> The first move (17.Rxe6) or the whole thing? I went for 18. Qg5 which doesn't work )-:

In any event, I'm happy to get the 1st move on a Sunday puzzle (-:

Oct-13-24  mel gibson: <The first move (17.Rxe6) or the whole thing? I went for 18. Qg5 which doesn't work )-:>

I chose 17. Qg5 which is close to a draw.
I should have looked for longer.

However - there is no knockout move in this puzzle.

Oct-13-24
Premium Chessgames Member
  rodchuck: Chris Owen is almost understandable. What's wrong?
Oct-13-24
Premium Chessgames Member
  chrisowen: Eek its wups its bid cro its Rxe6 its abluff frazzle huck its affable its pat Rxe6 etc;
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