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Borislav Ivkov vs Raimundo Garcia
Tel Aviv ol (Men) fin-A (1964), Tel Aviv ISR, rd 9, Nov-19
King's Indian Defense: Fianchetto Variation. Lesser Simagin (Spassky) (E62)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Sep-25-08
Premium Chessgames Member
  Domdaniel: <Chessgames> It's Raimundo Garcia. Tel Aviv 1964 was an Olympiad.
Sep-25-08
Premium Chessgames Member
  Domdaniel: <Chessgames> PS - the match was Yugoslavia vs Argentina, in round 9 of the Finals.
Sep-25-08
Premium Chessgames Member
  Domdaniel: <Chessgames> And this - Raimundo Garcia - is our man. A couple of his other Tel Aviv games are correctly attributed in the database.
Sep-25-08
Premium Chessgames Member
  playground player: "Easy" is in the eye of the beholder! Looking at this puzzle, my first response was, "Black resigns." But of course that can't be the answer. It took me quite a while to find Nh4+, and I don't know that I would've found it OTB--it'd depend on how my biorhythms were running.
Sep-25-08  MiCrooks: I actually found this one difficult. I did eventually land on Nh4+, but not before exhausting tries around the pawn on d6. I even stepped back to look at the threats in White's position and realized that Black was in dire straights. That was when Nh4+ popped into mind.
Sep-25-08
Premium Chessgames Member
  johnlspouge: Thursday (Medium): Ivkov vs Garcia, 1964 (40…?) Black to play and win.
Material: Down a P. The White Kg2 has 5 legal moves. The White K-side has a weak light-square complex, which Nf5 can attack in one move. Interestingly, if Nf5 moves, Qd7 contributes to the attack on the light squares. The Black Rd8 has the open e-file. Candidates (40…): Nh4+

40…Nh4+ 41.gxh4 [else, Re8# preceded by Qh3+ if necessary]

41…Qg4+

(1) 42.Kg1 [or Kh1] Re1#

(2) 42.Kf1 Qh3+ 43.Kg1 Re1#

I missed the defense 43.Qg2 in Variation (2).

Sep-25-08  Justawoodpusher: A good week for me, 4/4 now. Another chance for me to have 5 solved in a week. Let's hope for tomorrow...
Sep-25-08
Premium Chessgames Member
  Domdaniel: Ironically, this was Ivkov's only loss at Tel Aviv. A few rounds earlier he'd mated Benko in 24 moves, as black, with a combination ending with 24...Nf4#. So maybe he ought to have seen this coming.

40...Re1, btw, can be answered with various moves, all good for white. 41.h3 should win easily. So should 41.Ne5 (not, as we've seen 41.Ne3 Rxe3 42.fxe3 Nxe3+). After 41.Ne5 Black can try to mix it up with 41...Ne3+ 42.fxe3 Qf5, but simply 43.Qxf7+ Qxf7 44.Nxf7 Kxf7 45.Rxa7+ is a won rook ending for white.

Sep-25-08
Premium Chessgames Member
  kevin86: I solved this one! What looks like an ordinary position becomes a special one when black sacrifices the knight. The knight must be taken or else a back rank mate comes. When it is taken,the queen comes in for the kill.

Sep-25-08  skemup: First I was thinking about:
40..Nh4+ 41. gxh4 Qg4+ 42. Kf1 Qh3+ 43.Qg2 Re1+ 44.Kxe1 Qxg2 but i realised that white still can win (passed pawns) so i found 43..Qd3+ which is key move in this combo. Funny that position looks so normal..
Sep-25-08  Kasputin: It didn't take long to notice that 40 ...Nh4+ is a dangerous looking move, with possibilities of back rank mates. But does it work?

40 ...Nh4+
The move cuts off f3 from the king and white is faced with either taking the knight or moving the king to the back rank. But the back rank won't do because (if 41. Kg1 or Kh1) then 41 ...Re1#.

On the other hand 41. Kf1 Qh3+ then white has a choice - whether the black rook delivers checkmate or the black queen: a) 42. Qg2 Qxg2# or b) 42. Kg1 Re1#

So all of this leaves only:
41. gxh4 Qg4+
White can't move the king to h1 because ...Re1#
42. Kf1 Qh3+
43. Qg2 (forced or else mate with the rook again)
43 ...Qd3+
44. Kg1 Re1+
45. Qf1 Qxf1#

There are lots to be said about why black can pull of the tactical fireworks (e.g., the how the white knight and rook are cut off from defence of the king), but it is really the black rook on the open e-file that is the killer here.

Probably white played it out to 43 ...Qd3+ and then resigned. It should be noted that black might miss the queen capturing the queen - it is always possible that black takes the white queen on f1 with the rook instead. (Incidentally that was the move that I thought of first until I realized of course that mate with 45 ...Qxf1 is a much better ending to the story). But even in that case (i.e., 45 ...Rxf1+), it is quite hopeless for white since black can scoop up the knight and also easily stop any of white's pawn from queening. (For example, 45 ...Rxf1+; 46. Kg2 Qxc4; 47. d7 (or 47. b6 Qxa6) Rd1; 48. Rxa7 Qg4+ and then ...Rxd7. Alternatively, 47. Rxa7 Rd1 and neither 48. d7 or 48. b6 will work. I suppose it is possible that white played past 43 ...Qd3 in the very slim hope that black might take the queen with the rook but again black will win with best play past that point as far as I can tell.)

In any case, here again is the best sequence without comment:

40 ...Nh4+
41. gxh4 Qg4+
42. Kf1 Qh3+
43. Qg2 Qd3+
44. Kg1 Re1+
45. Qf1 Qxf1#

Sep-25-08  Kasputin: Okay, I got this, but in my little sub-variation (where the rook takes the white queen instead of QxQ), I wrote: <45 ...Rxf1+; 46. Kg2 Qxc4; 47. d7 (or 47. b6 Qxa6) Rd1; 48. Rxa7 Qg4+ and then ...Rxd7> but 48 ...Qg4 is mate actually.
Sep-25-08  Kings Indian: Too easy for Thursday.

What makes it easy is a forced line seems paramount.

The white queen falling on her sword accomplishes nothing but stalling the inevitable by one move.

Sep-25-08  lost in space: Another day, another day were I am very late.

This is an easy one:

40...Nh4+ 41. gxh4
other moves are even worse: 41. Kf1 Qh3+ 42. Kg1 Re1#; or 41. Kh1 Re1#

41... Qg4+ 42. Kf1
all other moves: mate in one

42...Qh3+ 43. Qg2 Qd3+ 44. Kg1 Re1+ 45. Qf1 Qxf1#

In the meantime I am missing the weekends, were I complained not long ago to waste my time.

:-)

Sep-25-08  Woody Wood Pusher: 40..Nh4+ with mate. Did anybody else try to get Ne3+ to work? No? me neither lol
Sep-25-08  TheaN: TheaN: 3/3

Once again.... Thursday? This is not a very varied solution and not hard to spot.

<40....?>

White: a4, b5, d6, f2, g3, h2, Nc4, Ra6, Qd5, Kg2

Black: a7, c5, f7, g6, h7, Nf5, Re8, Qd7, Kg7

Material: +♙

Characteristics:

Strategy
1) White has a very healthy passed pawn extra.

2) Both White and Black have quite some space, but Black has a loose position and doesn't seem to be able to use his space.

3) Both White and Black have active pieces: all pieces, except for Ra6.

4) White's Ra6 is the only inactive piece otb, but it's not bad after a potential Rc6.

5) White controls the passed pawn d-file, but it΄s blocked. Black's control of the open e-file is extremely crucial in this position.

6) White΄s pawn chain is pretty secure, as the b-pawn (the extra pawn) supports a6. Only d6 is an isolated pawn, but dangerous and well defended. The King side is safe. Black's pawn chain on the queen side is rubbish having lost the b-pawn. Both a7 and c5 are very weak. The king side is identical to White's.

Tactics:
1) White can check with Qd4†, Qe5† and Qxf7†: important here is the power of the centralized Queen. Black can check with Ne3†, a royal fork, and Nh4†.

2) White's King seems safe but has relatively weak light squares around him. Black's King has the same problem around the black squares, but those aren't as weak as White's light squares.

3) White nor Black has loose pieces. All pieces are adequately defended. Pc5 is in though, and there's little Black can do.

4) White's Pd6 is pinned to Qd7, but it is not going to move for any reason. Black endures no pins.

5) White nor Black have potential skewers.

6) White nor Black have potential discoveries.

Candidates: Ne3†, Nh4†

-ML-
The position's characteristics shows that White is actually more active and has a pawn more, so Black wants to attack the only weakness White has and use his own strength: light squares around the White King, and the Rook's e-file. This works perfectly with the clearance sac, actually leading to mate.

<40....Nh4†!> we enter, once again (see yesterday), a completely forced sequence here. All variations lead to mate.

/A\
<41.Kg1/Kh1 Re1‡ 0-1>

/B\
<41.Kf1 Qh3† 42.Kg1 Re1‡ 0-1>

/C\
<41.gxh4 Qg4† 42.Kf1 (Kh1 Re1‡ 0-1) Qh3† 43.Qg2 (Kg1 Re1‡ 0-1) Qd3† 44.Kg1 Re1† 45.Qf1 Qxf1‡ 0-1>

Sep-25-08  niemzo: I got the puzzle, but the real question is, which would be the best move for white at move 40. Does he have a won position?
Sep-25-08  BlackWaive: Thursday.

Candidate Moves: ♘h4+

...I almost got it. I missed the ♕g2 interposition.

I don't think I would have seen it in a blitz game.

Sep-25-08  Manic: Well, I spent 20 minutes trying to solve this for white to win, seeing that there were like 15 solutions I was like what the hell.
Sep-25-08  VooDooMoves: <niemzo> I like 40. Rc6, not only attacking the c-pawn but also preparing to break the blockade on the passed d-pawn. The white queen does well on d3 as 40...Nh4+? 41. gxh4 Qg4+ 42. Qg3 and black has a lost game. Only goes to show you, when you have the better position you have to be on your guard!
Sep-25-08
Premium Chessgames Member
  Domdaniel: R Garcia vs S Schweber, 2001 is another brilliant finish by Garcia.
Sep-25-08  zanza: Missing 43. ..., Qd3+... Just considered 43. ..., Re1+; 44. Kxe1, Qxg2. But this is simply winning!
Sep-25-08  bakuazer: got it. easy, of course; but nice; yesterday's puzzle was nice too. 4/4 so far, looking forward for 7/7 :)

Sep-25-08  I Offer You A Resign: Today's puzzle was pretty easy... at least for me.

After Nh4+, if gxh4, Qg4+ really stands out!
And then you notice if Kf1, Qh3+, Qg2 followed by Re1+, Kxe1 and Qxg2, and you sort of have an advantage (am I missing something here?)

Anyway, it's easier than most Thursday puzzles.

Sep-26-08  Kasputin: <Manic: Well, I spent 20 minutes trying to solve this for white to win, seeing that there were like 15 solutions I was like what the hell.>

Only trouble is that it is black's move, not white's.

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