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Pablo Petrowitsch vs Claudio Orpinas Konnig
ARAIS tt-B (1993), Santiago, rd 3
French Defense: Advance Variation. Main Line (C02)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
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Nov-06-12
Premium Chessgames Member
  Once: <Abdel Irada> If we've got time to analyse Rc7 and Rc8+, haven't we got enough time to see that 31...Qd2+ followed by Qxc3 renders those moves all but impossible?

I suppose it depends how we want to use our time. In a winning position, I would far rather look for a continuation that gives my opponent zero counterplay. I don't see the point in worrying about whether an inferior line is okay or not.

Nov-06-12  Abdel Irada: <Once>: Whether or not I had "time" to see 31. ...Qd2, the fact is that I didn't. I overlooked that; in fact, I never even glanced at it. But as a matter of course I *did* rule out any danger from the rook on c3 before embarking on a variation that would leave it on the board.

This may not make sense, but there you have it. That's just the kind of thing that happens when one calculates a sequence of moves: One finds *a* solution, confirms that it works, and plays it.

In any case, we can agree that both lines win handily. In fact, you'll note that we arrived at essentially the same position via completely different move sequences, so it's possible to win in multiple ways.

In such circumstances, practical players find different ways to ice the game, but the result will be the same: Within a few moves, the opponent will resign.

(All of this assumes that we don't want to perform a Paul Keres impression: Relish our position, find *all* the different ways to win ... and then lose on time.)

Nov-06-12
Premium Chessgames Member
  morfishine: <Adbel Irada> Now thats funny, your comment <(All of this assumes that we don't want to perform a Paul Keres impression: Relish our position, find *all* the different ways to win ... and then lose on time.)> A real belly-buster!
Nov-06-12  tbentley: My line started with Rxf2+ and ended with Qxh1. It's not necessary to calculate whether 31...Qxh1 or 31...Qd2+ is better at move 28; you can consider that (after wondering why your opponent hasn't resigned) at move 31.

Black's position is so dominant that 28...Bh4 also wins (in Rybka's 15 ply line black picks up the e5 pawn). Rxf2+ appears to be a mate in 13 with something like 28...Rxf2+ 29. Bxf2 Rxf2+ 30. Kg1 Qxd1+ 31. Kxf2 Qd2+ 32. Kf1 Qxc3 33. Rh2 Qd3+ 34. Kg1 Qg3+ 35. Rg2 Bc5+ 36. Kf1 Qf3+ 37. Ke1 Qxg2 38. Kd1 Be3 39. Ke1 Qd2+ 40. Kf1 Qf2#

Qxh3+ also appears to be a mate in 13 with something like 28...Qxh3+ 29. Kg1 Qg4+ 30. Kf1 Rxf2+ 31. Bxf2 Qxd1+ 32. Kg2 Qe2 33. Rf1 Bh4 34. Re3 Rxf2+ 35. Rxf2 Qxf2+ 36. Kh3 Qxe3+ 37. Kxh4 Qf3 38. Kg5 Qg3+ 39. Kh5 Kh7 40. a4 g6#

Nov-06-12
Premium Chessgames Member
  agb2002: Black is a pawn ahead.

The obvious move is 28... Rxf2+ forcing the king to block the protection of his queen or to be mated:

A) 29.Bxf2 Rxf2+

A.1) 30.Kg1 Qxd1+ 31.Kxf2 Qxh1 - + [Q+2P vs R].

A.2) 30.Kg3 B(Q)h4#.

B) 29.Kg1 Qxd1#.

C) 29.Kg3 B(Q)h4#.

Nov-06-12  Patriot: There are several checks here but only one that seems to have real merit.

28...Rxf2+ 29.Bxf2 Rxf2+ 30.Kg1 (30.Kg3 Qh4#) Qxd1+ 31.Kxf2 Bh4+ (why not?) Black will at least win a rook or mate.

It's not the typical "easy" Tuesday.

Nov-06-12
Premium Chessgames Member
  chrisowen: Chow-down fat rook chance in chilling 28.Rxf2+ corporeal body of

work it seem like for together h3 an option king g1 evade the check

redoubled attack indifference on black behalf too remaining positive

the win will come it alive in blew away a focal point in f2 whood it

stall in mind black only got eyes it now in d1 alternative to queen

right off h3 play having taken a different route paddle around rook

f2 in benev - o - lence diction retreat in d4 box queen.

Nov-06-12
Premium Chessgames Member
  FSR: 28...Rxf2+ 29.Bxf2 Rxf2+ 30.Kg1 (30.Kg3 Bh4# or Qh4#) Qxd1+ 31.Kxf2 Qxh1 0-1
Nov-06-12
Premium Chessgames Member
  chrisowen: Gin zen good gaming rookf2 adventure d4 kaputz the cobweb in f2 rook

dangle pawn it tired in f2 eat wicker h3 mitigate flow in e7 to h4

ticker manage light g3 overs it a tile on gunning for level playing

field in give try church of reason in jam it rookf8 in framer

cuckold kicker table i net ride NT in mind b5 eat route in making e8

to h5 and g6 in tonic for whining I proof in jole go building in he

it h3queen my attention barking toward a very h5 no light advantage

in grip the bottle neck in queen g6 allow chop in h5 h3 timed in f2

or mull over f8 tendence toward youth in game have a cigar pin key a

good break in b4 I h5 in tainted g3 bishoph4# our energy in.

Nov-06-12  ForeverYoung: I found 28 ... Rxh3+ 29 Kg2 Rh2+!!
Nov-06-12  Patriot: <ForeverYoung> 29...Rh2+ is indeed nice but only if white plays along. 28...Rxh3+ 29.Rxh3 and black is the one resigning.
Nov-06-12
Premium Chessgames Member
  kevin86: I had a little trouble with this one:it looks like Qxh3+ is a winner/is it?
Nov-06-12
Premium Chessgames Member
  keypusher: Took me a while to notice that the queens were lined up so the king couldn't retreat to g1 after 28....Rxf2+ 29.Bxf2 Rxf2+ without losing his consort.
Nov-06-12  lost in space: I found it hard to find a move which is not winning for white.

I found a few king or bishop moves not wining instantly.

Nov-06-12  LoveThatJoker: <28...RxP/B7+ 29. BxR>

(29. K-N1 QxQ mate; 29. K-N3 Q-R5 mate or 29...B-R5 mate)

<29...RxB+ 30. K-N1>

(30. K-N3 Q-R5 mate or 30...B-R5 mate)

<30...QxQ+ 31. KxR Q-Q7+ 32. any QxR>

LTJ

Nov-06-12  James D Flynn: At last the electric power is back here in Westfield NJ and the gas line this morning was only a 5 minute queue. There are 2 ways to obtain decisive material advantage the most obvious is 28..Qxh3+ 29.Kg1 Qg4+ 30.Kf1 (not Kh2 3Rxf2+ 31.Bxf2 Rxf2#) Rxf2+31.Bxf2(worse is Ke1 Qe5+ 32;Be3(or Re3) Qxh1#) Qxd1+ 33.Kg2 Qe7 34.Rf1 Bh4 and another piece falls. Better still is 28..Rxf2+ 29.Bxf2 Rxf2+ 30.Kg1(not Kg3 Bh4#) Qxd1+ 31.Kf2 Qd2+(Black has a choice of rooks but Qxh1 would be less of a mate threat) 32.Kf1(orKg1) Bh4 33.Rf3 Qe1+ 34.Kg2 Qe2+35.Kg1 Qxf3 36.Rh2 36.Qd1+ Kg2 37.Qe2+ Kg1 38.Qe1+ Kg2 39.Qf2+ Kh1 40.Qf1# Now for the game
Nov-06-12  stst: NO clean mate is apparent, but
28......RxP+
29.BxR RxB+
IF (A)30.Kg3 Qh4#
IF (B)30.Kg1 QxQ+, 31.KxR QxR and White has nothing good to proceed, while Black got overwhelming material and pawns in stock.
Nov-06-12  stst: Game proceeds exactly as mine, only that White stops after the second R+, seeing what's coming ===> more struggle simply wastes time.
Nov-06-12  Steve.Patzer: My question is what would have been the continuation if white had moved 27. Kh1 ?
Nov-06-12  Bengambit: 27.Kh1??? 27....Qe3. 28. RxF3 Rxf3 29.R or Qe1 Rh3 double ++ 30.Kg1 Qh1 mate.
Nov-06-12  Steve.Patzer: @Bengambit I believe you meant 27....Qe4 28. Rxf3 Rxf3 but does 29. Kh2 help?
Nov-06-12  Steve.Patzer: Oops. My 29. Kh2 loses to Qf5. What about 29. Kg2?
Nov-06-12  Bengambit: Yes,thanks Steve.
Nov-06-12  Bengambit: The K cannot go to g2 on move 29......
Nov-06-12  Steve.Patzer: If 27. Kh1 Qe4 28. Rxf3 Rxf3 29. Kg2 then Rd3+ 30. f3 loses to Qg6+ but 27. Kh1 Qe4 28. Rxf3 Rxf3 29. Kg1 loses to Qf5.
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