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Jan Smejkal vs Lothar Vogt
October Revolution 60th Anniversary (1977), Leningrad URS, rd 2, Jun-26
King's Indian Defense: Normal. King's Knight Variation (E60)  ·  0-1



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Kibitzer's Corner
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Jul-20-05  trumbull0042: <Caissanist> : The K+B+N mate was my obsession for a little while, and I studied it a bit but I still have a lot of trouble with forcing the king in one of the "locked" positions, that is, any position leading from: kf8, Nf7, Kf6 and Bf5 (or any transposition thereof). Especially difficult is making sure the knight is on the W (f7, e5, d7, c5, b7).
Jul-20-05  Chesschatology: <Caissanist>

(1) I got it in about three seconds, but I think it was luck. It just so happened that I noticed the mating net and checked Rg2 first.

(2) None

Jul-20-05  euripides: A nice game by Vogt, with lots of small combinations. 42 Kh4 looks like a blunder but if 42 Kh2 Rg2+ 43 Kh1 Rg3 White loses a piece.
Jul-20-05  shinesaza: I didn't find this easy at all. I actually didn't search for a mate, I tried to get something out of discovery check black can force with 42.. Bg5+.

Finally found the win. Silent moves are much harder to find than some piece sacs etc.

(1) Took me about 10-15 minutes
(2) I think I tried to study that once, but I don't think I could force a mate with them against perfect defender.

Jul-20-05  awfulhangover: Took me 3 min. I'm proud of that :-)
Jul-20-05  DanRoss53: I saw 42... ♗f8 43. (move other than f6 or ♖e1) ♗e7+ 44. f6 ♗xf6# and ignored the fact that White gets to move between Black's 42nd and 43rd moves. Oops!

So don't feel too bad <dac1990>.

Jul-20-05  Ingolf: I think 42.-Bf8 still wins after 43.f6 Bb4 44.Ne2/a4/b1 Be1+ 45.Rxe1 Ng2+.
Jul-20-05  euripides: <ingolf> that's a beautiful line. If 44 f7, though, I think Black's best is to return to the other idea with 44..Rg2.
Jul-20-05  Jack Kerouac: King's Indian Defense. My choice against the Q-pawn since 1972.R. Fischer influence. Has any one seen the K.I. against a strong computer by a strong grandmaster? Wonder why it's so rare? Seems like a good defense with a myriad of choices.
Premium Chessgames Member
  kevin86: Smart move by black-instead of going for a cheap discovered check,he seals the mating net.
Jul-20-05  Knight13: So White's gonna get mated no matter what he do, right?

I was looking at 42... Bg5+ but when I calculated few moves later I see nothing. Then I sensed that White's gettin' mated so I tried to find a way to mate him so I saw the move Rg2 and found out White can't escape.

Good puzzle.

Jul-20-05  Chesschatology: <BorisSpasky>


Jul-20-05  DanRoss53: <Jack Kerouac> shows all King Indian games by computers (although many are computer vs. computer).
Jul-20-05  snowie1: White's Bs and Ns lacked action where
needed. Pawn moves by black neglected
by white, cost him. His Rs and Q were
moved several times to the wrong places.
Jul-20-05  ThomYorke: <Jack Kerouac> King´s Indian Defense is not used anymore by strong grandmasters. You can see that after 1998 Kasparov who used it a lot, stopped playing it.
Jul-20-05  hintza: The main reason is the success of the Bayonet Attack, which runs 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.b4 and now 9...Nh5 is met by Kramnik's move 10.Re1!, allowing the bishop to be preserved by retreating it to f1 if Black plays ...Nf4.

Jul-20-05  DanRoss53: <hintza> Kramnik vs Kasparov, 1997 was not the first time that line was played (D Komarov vs Oral, 1995), but is certainly the most well known.

Just looking at the final results for Games Like D Komarov vs Oral, 1995 shows that this line clearly favours White (+33 -6 =6 or 80%)!

Jul-20-05  xxdsdxx: Once I saw that 42... Bg5 opened the gate to the let the Big Dog out (Kg4), I knew that the Rook had to wander down the street to cover the back exit. 15 seconds to close the door... 42... Rg2
Jul-20-05  hintza: <<hintza> Kramnik vs Kasparov, 1997 was not the first time that line was played (D Komarov vs Oral, 1995), but is certainly the most well known.> I know.

<Just looking at the final results for Games Like D Komarov vs Oral, 1995 shows that this line clearly favours White (+33 -6 =6 or 80%)!> My point exactly.

Jul-20-05  erikcu: I really like 20. .. Nxg4. Call me amature, but moves that sacrifice and then regain a major piece a few moves later are fun to see.
Jul-20-05  chessboyhaha: easy easy
in five seconds i found
Jul-20-05  YouRang: What a dummy - I missed it! I probably would have gotten it if I didn't just jump on the first idea that I thought was a solution (42... Bf8 -- missing the reply of f6!). Doh!
Jul-20-05  BishopofBlunder: Long time poster, first time lurker...wait! Strike that, reverse it.

<Caissanist> 1. It took me a while to get this (10-15 minutes tops). I kept trying to make 42.Bg5+ work, but realized that it allowed the King to escape. Finally, I thought "gee, if only the rook were on the other end of the g-file. I was shocked when it actually worked (pleasantly of course). 2. Haven't spent any time on K+B+N endgames (or any other for that matter). Just got lucky.

Jul-21-05  Caissanist: Many thanks to everyone who responded to my little survey. One of the things that I've learned from kibitzing on this site is how different are the thought processes that different people use to solve the same problem, and this puzzle really highlighted that. I don't think I could ever have solved it without knowing how you have to use the knight to limit the other king's mobility along the edge, and the king (or in this case the rook) to control the second rank/file. Clearly that's not true of everybody.

Premium Chessgames Member
  Richard Taylor: I realized that all moves didn't force mate as the rook was in the way then saw the move -and had it solved - checked out any defences to the mate -there were none - and plumped for it -got it right - didn't take too long in this case.
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