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Manuel Rivas Pastor vs Robert Huebner
Linares (1985), Linares ESP, rd 5, Mar-13
Queen's Indian Defense: Miles Variation (E12)  ·  0-1



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sac: 39...Rxf3+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jul-09-19  goldfarbdj: I decided that after Rxf3+ and Rc3+ black should have an unstoppable mating attack, and did not calculate out every variation.
Jul-09-19  zb2cr: Okay, this one's almost entirely forced, so it's easy.

39. ...Rxf3+; 40. Kxf3, Rc3+. White can interpose with 41. Re3, but after 41. ... Rxe3+; 42. Kf2, Qxg7 White will be down by Q vs. R. Therefore, he has to move the King to e2 or g2.

A. 41. Kg2, Rc2+.
A.1. 42. Kf1??, Qf2#.
A.2. 42. Kh1, Qh4+; 43. Kg1, Qh2+ and mate next. A.3. 42. Kg3, Qf2+.
A.3.a. 43. Kh3, Rc3+; 44. Kg4, Qg3#.
A.3.b. 43. Kg4, Rc4+; 44. Kh3, Rh4#.

B. 41. Ke2, Rc2+.
B.1. 42. Ke1, Qd2+ and mate next.
B.2. 42. Kf1??, Qf2#.
B.3. 42. Kf3, Rf2+; 43. Kg3, Qf4+; 44. Kh3, Rh2#.

Premium Chessgames Member
  FSR: A very sharp position! Whoever is on move wins by sacrificing his rook for a pawn (although if White did so it would be a sham sacrifice, since it would win Black's queen).
Jul-09-19  NBZ: I thought it was White to play and was debating between Rxe6+ (obvious) and Rxa7+ Kd6 Rxe6+ Kd5 Rd7+. Ugh. Never even thought it might be Black to play.
Premium Chessgames Member
  agb2002: Black is three pawns ahead.

White threatens Rxe6+, Rxa7+ and Qf6+.

The white king looks defenseless. Therefore, 39... Rxf3+ 40.Kxf3 (40.Kg(h)2 Qf2+ 41.Kh1 Rh3#) 40... Rc3+:

A) 41.Ke2 Rc2+ 42.Kf3 (42.Ke1 Qd2+ 43.Kf1 Qf2#; 42.Kf1 Qf2#) 42... Rf2+ 43.Kg3 Qf4+ 44.Kh3 Rh2#.

B) 41.Kg2 Qd2+

B.1) 42.Kf1 Rf3+ 43.Kg1 Qf2+ 44.Kh1 Rh3#.

B.2) 42.Kg1 Rg3+ 43.Kf1 (43.Kh1 Qg2#) 43... Rf3+ as in B.1.

B.3) 42.Kh1 Rh3+ 43.Kg1 Rg3+ as in B.2.

Jul-09-19  stacase: Today's Tuesday puzzle is easier than yesterday's Monday puzzle.
Jul-09-19  Sally Simpson: ***

Hi satcase,

Gone are the cherished days of placings these puzzles in order of difficulty following the days of the week.

The person who sets these things is a Monk of the Delta Dynasty, a religious sect that does not have weeks or months.

Every one of the 365 days has a different name, I believe to them today is Voomer Day - named after the hovering Voomer spirit who cleans things up - it's where we get the name hoover from.

Hope this helps.


Jul-09-19  saturn2: I looked at 39...Rxf3+ 40. Kxf3 Rc3+

41. Ke2 Qg4+ 42. Kd2 Qd4+ 43. Ke2 Re3+ 44. Kf1 Qxe5

41. Kg2 Qd2+ 42. Kf1 Rf3+ 43. Kg1 Qf2+ 44. Kh1 Rh3#

Jul-09-19  saturn2: In my first line there is 44 Rxe3 Qxg7
2R vs Q and some pawns. Maybe it is also won for black but 43...Re3 is a mistake.
Jul-09-19  malt: I Have 39...R:f3+ 40.K:f3 Rc3+ 41.Kg2

(41.Ke2 Rc2+ 42.Kf3 Rf2+ 43.Kg3 Qf4+ 44.Kh3 Rh2# )

41...Rc2+ 42.Kg3 Qd3+ 43.Re3

(43.Kf4/g4/h4 Rc4+ 44.Re4 R:e4# )

43...Q:e3+ 44.Kg4 Rg2+ 45.Kh4 Qg3#

Jul-09-19  Damenlaeuferbauer: Of course, my old friend Robert found 39.-,Rxf3+! 40.Kxf3,Rc3+ and mate in 5 moves! By the way, in Zoltan Ribli / Gabor Kallai, "Winning with the Queen's Indian", Batsford, London 1987, Huebner's lucidious play with 5.-,Be7!, 6.-,c5! and later on is given as nearly the refutation of the very dangerous Miles set-up with 4.Bf4, 5.e3, 6.h3, 7.Nc3, 9.Bd3, and 10.0-0.
Jul-09-19  Cheapo by the Dozen: I found the thumping, harder-than-Tuesday, inferior-to-the-game-line win with 40 ... Qc3+, and stopped there. The most interesting/challenging variation is:

39 ... Rxf3+
40 Kxf3 Qc3+
41 K(somewhere on the 2nd rank) Qb2+
42 K(back to the 3rd rank) Rc3+
43 Kf4 (so that interposing with the rook is finally viable) Qf2+ and mate quickly follows

Premium Chessgames Member
  ChessCoachClark: This game is only the third time I have seen post a game that uses the Railroad Mate sequence.

I came upon a reference to it a few years ago and it fascinates even my younger chess students with its zig-zag approach to a short King Hunt between the 'railroad ties' formed by the Queen and Rook.

Also impressive is the fact that it may be done either vertically and horizontally.

Got to love it! Yez!

Jul-09-19  TheaN: To be honest, I was looking longer at the actual variations rather than <39....Rxf3+ 40.Kxf3 (otherwise Qf2+ 41.Kh1 Rh3#) Rc3+>.

Typical with these major piece nets is that queen and rook combine perfectly to shift the king further until he's stuck. I see Clark uses the term <railroad sequence>. I'm not sure if there is a term for it, but I like it.

In this position it's irrelevant where the king goes. Black follows <42....Rc2+>. If White interposes Black always has RxR+ with QxQ so that's unavailable. Going to the first rank allows Black to take the second rank with the queen followed by mate. So White has to go back to the third rank.

On f3 follows <43.Kf3 Rf2+ 44.Kg3 Qf3+ 45.Kh3 Rh2#> which is dubbed the <railroad sequence> (would like to know if there's an official name.

On g3 and h3 follows <43.Kg3/Kh3 Qd3+> where Black will follow the opposite route: <44.K4 Rc4+ 45.Re4 Rxe4#>.

Jul-09-19  TheaN: Yeah I'm not too far off. White can prolong mate by an additional move by interposing the rook sooner, allowing to interpose the queen as well. For naught, of course:

1) mate-in-7 (24 ply) 39...Rxf3+ 40.Kxf3 Rc3+ 41.Kg2 Rc2+ 42.Kh3 Qd3+ 43.Re3 Qxe3+ 44.Kh4 Rc4+ 45.Qd4 Rxd4#

Premium Chessgames Member
  mjmorri: It looks like White was holding his own until he started to drift with 36.Re7 and then ran off the rails with 37.g5. Time pressure perhaps, or just the strain of having to fight against a superior opponent.
Jul-09-19  whiteshark: Elementary, my dear Watson.
Jul-09-19  schachfuchs: <stacase: Today's Tuesday puzzle is easier than yesterday's Monday puzzle.> Yep. I calculated all the different possibilities till mate.

What I don't understand is White's 38.Ra1 and 39.Qg7. Why not, at least, 38...Qxd4 39.Rxa7+ ?

Jul-09-19  20MovesAhead: schachfuchs : a good question

39. Rxa7+ R8c7 40. Rxc7+ Rxc7 41. Qg7 Qg1+ 42. Kh3 Rc1 43. Qf6+ Ke8 44. Qh8+ Kd7 and no more checks for W queen

Premium Chessgames Member
  ajk68: White self-destructs starting with move 36!
Jul-10-19  patzer2: For the Tuesday Jul 9, 2019 puzzle, the game continuation 39...Rxf3+ +- forces mate in seven.

P.S.: So where did White go wrong? Things went bad for White after 36. Re5? Ke7 ∓ (-1.31 @ 31 ply, Stockfish 10) allowed Black a strong, nearly winning advantage.

Instead, 36. Kg2 Ke7 37. Qg5+ = (0.00 @ 38 ply, Stockfish 10) holds it level.

Things went from bad to worse for White after 37. g5? Rxc3 -+ (-3.69 @ 30 ply, Stockfish 10) gave Black a clear winning advantage.

Instead, White can put up more resistance with 37. Re1 Rxc3 ∓ (-1.27 @ 31 ply, Stockfish 10).

At the beginning of the game, instead of making Black happy with 4. Bf4 Bb7 =, our Opening Explorer indicates Masters overwhelmingly prefer the popular move 4. g3 ⩲ to = as in White's win in Eljanov vs Jobava, 2018.

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