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Miguel Cuellar Gacharna vs Samuel Reshevsky
Sousse Interzonal (1967), Sousse TUN, rd 2, Oct-17
Benoni Defense: Hromadka System (A56)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-13-05
Premium Chessgames Member
  patzer2: As a continuation of the combination which began with the deflection 37. f6!, as an attack on Black's weakened castled position (following 36...g5?), today's puzzle solution 42. Re4! combines the clearance, obstruction (i.e. interference or Blockade), double attack, mating attack and defensive move tactical themes.

White's 42. Re4! is a clerance move in that it clears the f4 square and the diagonal for the potential capture 43. Qxg5+ with mate to follow. It is an obstruction or interference move (classified by Informant's Encyclopedia of Middle Games as blockade) in that it obstructs, interferes, blockades or breaks communications between the two Black Rooks. It is a double attack in that it threatens at least two different mates, depending on Black's response (e.g. 42...RxQ RxR# or 42...R8xe4 43. Qxg5+ Kf8 44. Qg7+ Ke8 45. Qh8#). It is a mating attack in that White's multiple mate threats cannot be defended. Finally, it is a defensive move in that it uses a decisive defense by counter attack to defend against Black's double attack on White's Queen and Rook after 41...Re2.

Jul-13-05
Premium Chessgames Member
  patzer2: <al wazir> <Also winning is 42. Re1.> Yes! indeed it does! Good catch!

However, after 42. Re1! Rxe1 White's quickest path to mate is 43. Re4!, with essentially the same scheme as 42. Re4!

Jul-13-05  jahhaj: <Stevens> Don't worry, we're all patzers here.
Jul-13-05  trumbull0042: <However, after 42. Re1! Rxe1 White's quickest path to mate is 43. Re4!, with essentially the same scheme as 42. Re4!> Yeah, 42. Re1 is kind of a waste of time.
Jul-13-05  bpdoc: Actually, <Stevens>, I think 42.Rh4 has potential. After black takes the Queen, white has 43.Rh7 Qa5 44.Rg7 Kf8 45.Bh7 Rg2 46.Kh1 Re1 47.Rxe1 Qxe1 48.Kxg2 Qe2, at which point, with black's h4 pawn gone, I think White's king may be able to escape. Anyone want to figure the rest of this line out, or correct my analysis?
Jul-13-05  tbirdas: 42.Rh4 only draws after 42...Rxd2 43.Rh6 (43.Rh7 Qd8! attacking the f6 pawn) and repetition after Bh7+ Kf8 Be4 Kg8 to avoid mate on h8. Interestingely, evacuating e8 for the king doesn't work, i.e. 43...Ree2 44.Bh7+ Kf8 45.Be4 Ke8?? (45...Kg8=) 46. Rh8+ Kd7 46.Bf5+ Re6 47.Bxe6+! fxe6 48. Rh7+ Kd8 49. Rxc7 Kxc7 50. Rf1! and the f-pawn promotes (Fritz 8)
Jul-13-05
Premium Chessgames Member
  YouRang: Got it, but it took me a minute. I immediately saw that black was vulnerable to back rank mate (thanks to the pawn and bishop), and I even looked at Re4, but dismissed it because of R8xe4. Only later did I notice that white had the reply Qxg5+, with mate to follow.
Jul-13-05  zb2cr: Got it, I'm proud of myself.
Jul-13-05  Colombiano: What a great game by my former chess teacher.Thanks for showing it. It brought great memories back. I was part of the chess team of La Universidad Nacional de Colombia that became champion at the Colombian National Chess Championship at Universitary level in Ibague in 1962? Is he still alive?
Certainly he was a great guy?
Does any one know his adress?
Jul-13-05  Pawsome: <colombiano> I googled Cuellar-Ganchara and learned he passed away in 1985.
Jul-13-05  euripides: I had never heard of Cuellar before today. What a wonderful game to be remembered by !
Jul-13-05  snowie1: I like...40 Rf5 and no matter....Qxg5+ followed by mate; either QxN,if Kh8, or Qg7 mate immediately.
Jul-13-05  Drudge: Sorry i am new at chess can someone who is better then me please examine the way i looked at this puzzle and maybe give me advice oh how i am seeing this incorrectly? I would really appricate it.

On playchess server i average 1350 elo... (blitz games 10 minutes 95 percent of the time) . When i first started playing chess like 7 months ago i was at like 1100 elo in blitz (10 min). On slow I average around 1550 elo but i have not played slow in a while...hard to find people who will play slow (slow btw 90 percent of the time was 16-20 minute games).

Here is what i saw but it required 42... Kxh7 then i looked at the other moves Black could play.

if 42. Bh7+ Kxh7, would result in a mate also via..... 43. Rxh4+ hx4
44. Qd3+ Kh6
45. Qg7#

---
42... Kf8 43. Rf5 ... which to excellent white possition 42... Kh8 43. Qd3 .... which leads to excellent white possition

I did not see the whole continuations though. I got confused on what Black would do next after like 3 or four moves in my examples above.

I ran my choices through fritz though and all my choices fritz said I would win. Of course I cannot see so far ahead like fritz but the possition just looked good in my head for white.

Why could i not see the very simple elegant solution though????

Drudge

Thanks for any advice.

Jul-13-05  euripides: <drudge> You're on the right lines, but there is a flaw.

After 42 Bh7+ Kxh7 43 Rxh4+ gxh4 44 Qd3+ Kh6 45 Qd3-g7 is not legal; Black can also meet 44 Qd3+ with 44...R8e4.

42 Bh7+ Kxh7 43 Rxh4+ gxh4 44 Qg5 has been suggested by earlier posters when if 44...Rg8 45 Qh5 is mate. However, 44 ... Rxg2+ keeps Black in the game after 45 Qxg2 (not 45 Kxg2 ? Rg8 wining the queen)Rg8.

Some posters have also analysed 42 Rxh4+ above.

Jul-13-05  jahhaj: <Drudge> <I got confused on what Black would do next after like 3 or four moves in my examples above> I think anyone gets confused in tactical analysis at some point. The only method I know of improvement is practise. That means sitting down with a puzzle book or a annotated book of games and trying to visualise what might happen next.

<Why could i not see the very simple elegant solution though?> In this case I would say a lack of appreciation for the important things in the position. The line you chose is attractive because it is forcing. Somewhere in your mind you thought that you had to pick forcing moves because your queen is en prise. Most of the time this would be right, but in this particular position it is wrong.

Two things led me to the right move, firstly I realised than any ♖f4 move would threaten ♕xg5+ and secondly if a rook could get to the back rank Black would be mated. Combining those two suggested ♖e4!.

Jul-13-05  Colombiano: <colombiano>Pawsome Thanks very much. He was a very good person. I lost track of him and chess when I became a general surgeon. Thanks
Jul-13-05
Premium Chessgames Member
  al wazir: <patzer2: White's quickest path to mate is 43. Re4!, with essentially the same scheme as 42. Re4!> Yes, of course, but if I had seen Re4 in the first place I wouldn't have analyzed Re1.
Jul-13-05
Premium Chessgames Member
  patzer2: <al wazir> Indeed, I was impressed that you found 42. Re1 to be a win, as I over looked that possibility. A win is a win, and there's no need to look for others when you've got a sure one in hand. Congratulations again on finding a winning alternative to this puzzle.
Jul-13-05  soberknight: Those of you who suggested 42.Bh7+ have missed ...Kh8.
Jul-14-05
Premium Chessgames Member
  Richard Taylor: I first looked at Re1 but then I saw Re4 which clearly wins -very instructive combination - a complex game - Reshevksy didnt seem to play very decisively but it was hard for either side to break through each other...
May-02-09
Premium Chessgames Member
  patzer2: In addition to clearing the key f4 square with a decisive double attack, the move 42. Re4! is also an interference move in that it decisively breaks communication (breaks the guard or interferes with the line of defense) between the two Rooks.

As such it (42. ?, White to move) is listed as number 366 in Informant's 1980 (Batsford) Encyclopedia of Chess Middlegames/Combinations.

Nov-18-09  GMMandetowitch: Needless to say,42-Re4 is much much stronger then Re1 or Rxh4,after which black can simply capture the queen.(In the case of the unbelievable Rxh4 with all that Idea of Rh7 Rg7 Bh7,I'll stop here,its just to slow,I wouldn't even calculate it in a real game,specially if I could notice a much better and imediate move like Re4).
Mar-14-11
Premium Chessgames Member
  Eduardo Bermudez: 42.Re4 !!!!!!
Nov-18-12
Premium Chessgames Member
  Eduardo Bermudez: See this beautiful combination: number 366 in Informant's 1980 (Batsford) Encyclopedia of Chess Middlegames/Combinations.
Oct-25-17
Premium Chessgames Member
  Eduardo Bermudez: 42. "Re4! combines the clearance, obstruction (i.e. interference or Blockade), double attack, mating attack and defensive move tactical themes."
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