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Friedrich Saemisch vs Alexander Alekhine
Dresden (1936), Dresden GER, rd 9, Jun-14
Dutch Defense: Alekhine Variation (A92)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-03-10  patzer3844: forget it....30.f4 Qe3
Oct-03-10  CHESSTTCAMPS: <<gofer> <30 ... f4 31 Qxf4 and Qf6# is coming.. > Good analytical post. 31.Qxa7 also forces a quick mate.>

I take it back - black avoids quick mate with 31... R5e7 32.Qxe7 Qf3+.

Oct-03-10  rapidcitychess: Nope, missed this one again.
Oct-03-10
Premium Chessgames Member
  benveniste: I see the key move as 32. ♕xe7. Since I didn't see it at move 30, I was only "hoping" that 30. ♖g1 won. While I gave myself credit yesterday for finding the right first move, I won't do so today.
Oct-03-10  e fred: What about 30 f4 ... How black can answer it ?
Oct-03-10  lost in space: As often on Sundays: no chance for me
Oct-03-10
Premium Chessgames Member
  Sastre: If 30.f4, then <30...Qxe3 31.Qxe3 Rxe3 32.cxb5 Re1+ 33.Rxe1 Rxe1+ 34.Kg2 Rb1> and Black should win the endgame.
Oct-03-10
Premium Chessgames Member
  chrisowen: Grew Samisch in hold 30.qh4, fort esconce 34.qxe7 rats gnap. Delroy queen's frumious coal black 32.qxd6, wait it was chaldron in-to taxing fare exchange rook e8 mops up. Deck er race home been correct in guessing 30.rg1 collide favourably. 31.qxa7 link on defence, white sap peak eye point witness reaccept re7 queen sac. Final position mountain for Friedrich to climb ersatz end bishop food bad.
Oct-03-10  JorgeEA: What a noble and honorable task review
with hardware and software of the 21st century
human analyzes a century earlier!

Rather than trulychess I would call
cowards-analysis-chess.com

Oct-03-10  TechnoGuyRob: Woohoo, Rybka confirms my main line. At depth 19:

30. Rg1 Qxf2 31. Qxa7 R5e7 32. Qxe7 Qxg1+ 33. Kxg1 Rxe7 34. cxb5 Kg7 35. b6 Kf6 36. b7 Re8 37. a4 Ke5 38. Bc6 Rg8+ 39. Kf2 d5 40. a5 Kd6 41. b5 Kc7 42. a6 Kb6 43. Bxd5 Rd8 44. Kf3 Ka7 45. Bc6

In the endgame Rybka actually got the king over to the queenside, I didn't think that would be possible. But the price is steep, the trio of passed pawns is solid as a rock and completely ties the rook down. Looks like an easy win. Interesting that zugzwang plays a role in further variations.

Oct-03-10  scormus: Seemed to me that W must keep the R pinned on e5 and occupy the g-file, so 30 Rg1 looked the only move. But after 30 ... h5 I was out of ideas so I looked it up. I didnt see then that 31 Qh4 would have been unanswerable, and I cannot claim credit now because I've seen that W played that on move 30.

<Once, however> when I saw that your German friend had difficulty I knew I'd made a good decision - get in, pick a first move, say a prayer, then quit. Perhaps I'll make that my strategy on Sundays.

BTW I do think its a shame Saemisch didnt play it, looked so obvious too :(

Oct-03-10  wals: Analysis Rybka 4 x 64

Black: depth 19 : 2 min :
(+3.55):28...b5.
Best,
1. = (0.00): 28...Qg4 29.Qh6 Qg7 30.Qxd6 f4 31.Rg1 Rg5 32.Rf1 Rge5 33.Rg1 Rg5 34.Rf1 Rge5 35.Rg1 Rg5 36.Rf1 Rge5 37.Rg1 Rg5 38.Rf1 Rge5 39.Rg1 Rg5 40.Rf1 Rge5 41.Rg1 Rg5 42.Rf1 Rge5 43.Rg1 Rg5

White: depth 20 : 15 min :
(=0.00):
Best,
1. (6.83): 30.Rg1 Qxf2 31.Qxa7[] R5e7 32.Qxe7 Qxg1+ 33.Kxg1 Rxe7 34.cxb5[] Kg7 35.b6 Kf6 36.b7[] Re8 37.a4 Ke5 38.Bc6[] Rg8+ 39.Kf2[] d5 40.a5 Kd6 41.b5[] Kc7 42.a6[] Kb6 43.Kf3 Ka7 44.Kf4[] Rd8 45.Kxf5[]

White: depth 21 : 3 min :
(-1.45):34.Qxe7.
Best,
1. = (0.00): 34.Qc6 Qh4 35.Qc7 R5e7 36.Qc5 Rg7 37.Rxg7 Kxg7 38.Qxa7+ Re7 39.Qc5[] Re8 40.Qc7+ Re7 41.Qc5 Re8 42.Qc7+ Re7 43.Qc5 Re8 44.Qc7+ Re7 45.Qc5 Re8 46.Qc7+ Re7 47.Qc5 Re8 48.Qc7+ Re7 49.Qc5

White: depth 17 : 3 min :
(-2.83):39.Kg2. Best, Kg1, -2.27.
White needs a miracle.

White: depth 20 : 2 min :
(-7.15):51.Bh7. Best, f4+, -5.03.

White: depth 20 : 3 min :
(-#19):52.f4+. best, Bf5, -7.56.

Black stumbled
53...Rff2,(-#21), Rb6, -#13, was quicker.

White finally departed move 56.

Oct-03-10  CHESSTTCAMPS: For those who want to try their hand at winning the puzzle position against Crafty, go to the following link:

http://www.chessvideos.tv/endgame-t...

Crafty's defense is different from the line found by Rybka (mentioned by <TechnoGuyRob> in his last post), but your result should be the same.

Oct-03-10
Premium Chessgames Member
  patzer2: <ashvalkyrie: 30.Rg1 is actually staring you in the face, saying 'im such an awesome move and I bring forced mate along". So after 30.Rg1 30..Qxf2
31.Rg8+
31... RxR
32.Qxe5+
32..Rg7

... and mate in 2.
anything wrong with my line ... ?>

What's wrong in that line is 32...cxe5 when Black has tuned the tables and will mate on his next move (e.g. 33. Bxg8 Qf1#).

Oct-03-10
Premium Chessgames Member
  patzer2: For today's Sunday puzzle solution, 30. Rg1!! combines the weakened back rank, pinning and mate threat tactics to leave Black powerless against the incursion of the White Queen for a decisive attack on the helpless Black King position.

Black can defend and prevent an immediate mate, but in doing so he must concede White an army of passed pawns and a won endgame.

Fritz doesn't catch on at first (initially recommending 30. Qh5?!), at least not on the older Fritz 8 version I used today, but after forcing a few moves it finds the winning 30. Rg1!!

One clear winning line is 30. Rg1!! Qxf2

(Other moves such as 30... h6 allow White to win even more easily after 31. Qxa7 when play might continue 31...R5e7 32. Qd4+ Kh7 33. Qf6 Qh5 34. cxb5 Rc7 35. b6 Rce7 36. b7 Rc7 37. Qxd6 Rg7 38. Rxg7+ Kxg7 39. Qd7+ Kh8 40. f3 f4 41. Be4 Kg8 42. exf4 Kf8 43. Bc6 )

30... bxc4 31. Qxa7 R5e7 32. Qxe7! Qxg1+ 33. Kxg1 Rxe7 34. cxb5 (+3.44 @ 18 depth) with a clearly won endgame for White.

P.S.: I considered 30. Rg1!! but for some reason was uncertain about 30...Qxf2 31. Qxa7 and switched to 30. Qh4 =, which might still be good enough to hold the draw if White avoids the exchange of Queens with 33. Qc6 = to instead of going for it with 33. Qxe7 .

Oct-03-10  nariga: if

30. Rg1 Qh4
31. f4 ?? then I think black loses

How about:
30. c5 to be followed by cxd and move this pawn to queen etc. Anong the way exchange the queens if offered. If not, black R stays pinned and the C file is open for the white R to move freely.

Oct-03-10  nariga: Hmm, I think 30. c5 is winning for White.

30. c5 dxc
31. bxc

e.g. 31 ... Qxf2 32. c6 ...
I dont see any good moves for black on 31 above.

Actualy, is there any good move for black for 30. c5??

Oct-03-10
Premium Chessgames Member
  patzer2: Correction: My Fritz program initially picked 30. Qh4?! , but then after a longer search switched to 30. Rg1 .
Oct-03-10
Premium Chessgames Member
  patzer2: <nariga: Hmm, I think 30. c5 is winning for White.

30. c5 dxc
31. bxc

e.g. 31 ... Qxf2 32. c6 ...
I dont see any good moves for black on 31 above.>
How about 32...Qxe3 next.

Instead of 32. c6? here, try 32. Bc6 = or 32. Rg1 .

In any event, 30. Rg1!! is the clearly winning move.

Oct-03-10  EXIDE: No way. Not even after looking at the suggested Rg1 could I find the winning moves. Wait for the next puzzle.
Oct-03-10  DarthStapler: I didn't get it, I actually picked the move that was played in the game
Oct-03-10  nariga: <patzer2>
30. c5 dxc
31. bxc Qxf2
32. c6 Qxe3
33. Qa1 ??

There are no black checks, and the next move would be c7 or Rg1 for white. I think once the pawn is on c7,black rook will not be of much use.

Oct-04-10  nariga: The more I analyze, I think that White missed a chance to win with the moves I listed. Any one can see any flaws in these moves?
Oct-04-10  M.Hassan: "Insane"- White to play 30.?
White is behind by a Rook for a Bishop and a pawn

Black Rook on e5 is pinned and it is very tempting to play 30.f5 to get a free Rook, but it is not as easy as that. This is what will happen: 30........Qxe3
31.Qxe3 Rxe3
And Black wins the exchange by a pawn.
The best move for White will be 30.Qh4 to protect the f2 pawn and threatening mate on f6 30...........Rf8
31.Qh6 Ree8
32.cxb5 Qd2 attacking Rook & Bishop
33.Rg1 Qb2
34.Rg6 Qa1+
35.Kg2 Qe5
36.Bc6 Rg8
37.Rxg8 Rxg8+
38.Kh3 Qb2
39.Bd5 Rd8
40.Qg5 Rf8
41.Qf4
It seems that forces are even and I can't say what happens. Time to check

Oct-04-10
Premium Chessgames Member
  patzer2: < nariga: <patzer2> 30. c5 dxc
31. bxc Qxf2
32. c6 Qxe3
33. Qa1 ?? >

What follows is 33...Qxc1+ 34. Qxc1 Re1+ 35. Qxe1 Rxe1+ .

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