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Marko Rubil vs Darko Feletar
Pula Open (2010), Pula CRO, rd 7, Jun-24
Sicilian Defense: Dragon Variation. General (B70)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Dec-15-11  TheoNov: Yes, Darko playing with the "dark" pieces did make good use of the dark squares in this mating net (B on long diagonal, Rf2+, Nb3+ (on c1), Ra1#.

I also saw Rxg6, winning a piece, and stopped. But of course, forced mate is better. Maybe those that saw Rxg6 first were more focused on defense in this position, and the Qxb2+ crowd attack?

Dec-15-11  zealouspawn: Because everyone seems to like the knight mate, I'll point out the bishop mate that I saw:

31.. Ra1+ 32 Bb1 Bb2#

Notice the asthetic bishops moving all the way from black's kingside to white's queenside on the opposite end of the board. One for defense, one for mate

Dec-15-11
Premium Chessgames Member
  scormus: Neat Q-sac combination, completely turns the tables. I specially like the Nc5, blocking the WK escape to b3 ... and then going ... Nb3+

I always thought it was a bad idea for B to fianchetto QB when playing the Dragon. Was I wrong?

Dec-15-11  desiobu: Really nice combo. Everything working in concert.
Dec-15-11  Marmot PFL: Usually Thursday takes a while to solve, but not today. White didn't understand the Yugo attack, which requires h4-h5 etc.
Dec-15-11
Premium Chessgames Member
  Gypsy: In some sense, <29...Rxg6> can be viewed as a stronger motive than <29...Qxb2>. The reason is that the later depends, in a critical way, on the position of the Black Nc5 knight, which lords like a deux-ex-machina over b3. Move this knight to, say, c6 or d7 and the Qxb2 combo no longer works; yet the Rxg6 defense still wins for Black.
Dec-15-11  SuperPatzer77: < Gypsy: In some sense, <29...Rxg6> can be viewed as a stronger motive than <29...Qxb2>. The reason is that the later depends, in a critical way, on the position of the Black Nc5 knight, which lords like a deux-ex-machina over b3. Move this knight to, say, c6 or d7 and the Qxb2 combo no longer works; yet the Rxg6 defense still wins for Black. >

<Gypsy> I'll second that. Black Knight's key position is c5 because he takes control of the b3 square. The White King cannot escape to b3.

SuperPatzer77

Dec-15-11
Premium Chessgames Member
  kevin86: Wow! That queen sac hit me like a ton of bricks!
Dec-15-11  hedgeh0g: This seemed more like a Monday to me, since White has absolutely no defensive resources after Qxb2+: everything is forced.
Dec-15-11  psmith: This is more like a Tuesday puzzle, I think. White has a lot of threats, so Black has to pounce. 29…Qxb2+ is pretty obvious. 30. Kxb2 Rf2+ (a) 31. Kc1 Nb3+ 32. Kb1 Rb2#; (b) 31. Kb1 Rb2+ 32. Kc1 Nb3#. I don’t think I missed anything.
Dec-15-11
Premium Chessgames Member
  Gypsy: <SuperPatzer77> One can play a game: Where can I move the knight so that Qxb2 still works. Another 'magical' position for the knight would be Nb6, because then

1...Qxb2 2.Kxb2 Rf2++ <3.Kb3 Rb2#>

and, of course, the already familiar

1...Qxb2 2.Kxb2 Rf2++ <3.Kc1 Ra1+ 4.Bb1 Bb2#> (or <3.Kb1 Ra1#>).

---

Going back to the reality of the game. Maybe worth of noting is that after <32.Kb1...> Black can close with <32...Rb2#>, as well as with <32...Ra1#>.

Dec-15-11  Nullifidian: Got this one in five seconds. The first thing I noticed about the position was that it needed only a queen sac to bring the king to b2, where it could be subjected to a double check with ♖f2+. A second's more examination told me that there was no way for the king to escape to the third rank. Then lastly, I saw that Black had the pleasant choice, after ♔c1 (♔b1 ♖a1#) of multiple moves that would lead to mate in 2.

So the solution is:
29... ♕xb2+ 30. ♔b2 ♖f2+ 31. ♔c1

And now:
31... ♗b2+ 32. ♔b1 ♖a1#
31... ♘b3+ 32. ♔b1 ♖a1#/♖b2#
31... ♖a1+ 32. ♗b1 ♘b3#/♗b2#

Dec-15-11
Premium Chessgames Member
  chrisowen: Into it every brighand bishop
Damn cop out inch ar it geckos on top
A6 idea I managed a5 a4 chin up it
Clinking black now alledge queen in bit

All piece it enclave check to king
Battery it acid rook f6 it sling
A fraind queen not I take then check
Double f2 either abbey Feletar wreck

G7 check king back fire along
C1 get smothered it down b3+ gong
Impaled in chasm it evicting fright
Ill jettison net catch bet in knight.

Dec-15-11  Yodaman: Found the solution, but it took a while. Usually I find queen sacs very quickly, but I didn't notice this one until I saw the possibility of a double check with the bishop and rook.
Dec-15-11  TheRavenPK: Well, first I found a win for White (29.Bxg7+ Kxg7 30.Qh7+ Kf8 31.Rxf6+ exf6 32.Qh8+ Ke7 33.Re1+ Ne6 34.Qxa8; I thought the difficult part was to see the whole combination :D); then noticed it is Black to move. About three minutes being sure that I am on the right way, and then I got it.

Btw, only two days ago I was on the winning end of this game: 1.Nf3 Nf6 2.d4 d5 3.c4 dxc4 4.a4 c5 5.Na3 cxd4 6.Qxd4 Qa5+ 7.Bd2 Qxa4 8.Rd1 b5??.


click for larger view

My eight move (8.Rd1) was only because of a Sucker Punch - Reti vs Tartakower, 1910). So the game ended 9.Qd8+ Kxd8 10.Ba5+ Ke8 11.Rd8#.


click for larger view

Dec-15-11  karnak64: I could guess that ... Qxb2 was the key to this, but the followup ... Rf2+ (double check) eluded me. Nifty combination; I imagine M. Rubil was stunned.

But that's the Dragon, isn't it?

Dec-15-11  LIFE Master AJ: Nice combo.
Dec-15-11  PhilFeeley: The queen sac looked pretty clear for the first move, then Rf2+. Then I expect Nb3# would become obvious.
Dec-15-11  sevenseaman: <TheRavenPK:My eight move (8.Rd1) was only because of a Sucker Punch - Reti vs Tartakower, 1910). >

A very nice exploit from good memory. I hope your opponent wasn't much higher in rating as this kind of spectacular defeat could shatter many a good player.

Dec-15-11  sevenseaman: <olmandufer> Nothing illegitimate about moving pieces. You could do that but then you'd walk away from OTB simulation.

If you try hard enough regularly, mentally playing 6 to 8 moves will not be much of a sweat.

Dec-15-11  morfishine: <Gypsy> On your comment <In some sense, 29...Rxg6 can be viewed as a stronger motive than 29...Qxb2> That cannot be denied; However, what also cannot be denied is that <29...Qxb2+> is more forcing in that it forces mate.
Feb-23-12  Madman99X: I was going over this game with the aid of a computer, and black has an incredible forced combo with 26... Ra1+ 27. Kxa1 Nxb3+ 28. Kb1 Nd2+ 29. Kc1 Bxb2+ 30. Kxd2 Rf2+ 31. Bxf2 Qxf2 32. Kd3 gxh5 and black has demolished white's pawn structure:


click for larger view

Feb-23-12
Premium Chessgames Member
  OhioChessFan: Amazing......that quiet Bishop on g7 is the key to the combination with the major pieces already lined up and staring daggers at the White King.
May-17-15  SpiritedReposte: <Donnie Darko>
Mar-11-18  CheckMateEndsTheGame: Are they gms?
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