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Michael Wilder vs Anatoly Lein
Lone Pine Open (1981), Lone Pine, CA USA, rd 9, Apr-08
Indian Game: Wade-Tartakower Defense (A46)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Feb-04-07  Fisheremon: <crafty: 22. Rxe6 fxe6 23. Qg6 Qb7 24. Bxh6 Bf8 25. Bg5 Qe7 (eval -1.60; depth 14 ply; 500M nodes)> 26.Rh6 Rf5 27.g4 Rxf3 28.Kxf3 Rxd4 29.Bxf6 Qxf6 30.Qxf6 gxf6 31.Rxf6 with minimal advantage of Black and quite likely draw if White could promote 3 pawns on King-side as well.
Feb-04-07  Fisheremon: <bandito: What about 22...Rxd4 ?> 23.Rxd4 cos' in this position Knight is much stronger than Rook, and if gxh6 then 24.Rxe6 with a huge advantage or mate.
Sep-09-07  MostlyAverageJoe: Allright, looks like CG has recycled a Sat puzzle on Sunday. While I did not remember the position at all, perhaps it was filed in my subconsciousness and this is why it seemed familiar and easier than expected.

Not that I managed to get much past the first 6 plies within my allocated time, but I did get the first 6 plies and a couple of variations after Kf8. Overall, it looked bad enough for the black that I concluded that the Bxh6 sac should be refused, but now the puzzle got too twisted for me.

Sep-09-07  dzechiel: Looks like this was a Saturday puzzle back in February, now it's a Sunday puzzle. Is CG actually running out of games? Not a good sign.
Sep-09-07  King mega: ...Bxh6...too simple...nowadays sunday is easy.
Sep-09-07  symmer17: Themofro: "I saw both the sac of h6 and on e6, but i was thinking a rook sac on h6, then rook sac on e6, then Qg6+ and bishop h6."

I was thinking the same thing about sacking the rooks, but I would have played bishop h6 first to trap the king.

Sep-09-07  Monkey King: Not that insane, Bxh6, gxh6 pretty much forced, rxe6, can't take back because of mate, and after any move that protects the Bishop, Rxh6 is crushing.
Sep-09-07
Premium Chessgames Member
  al wazir: No points for me. I guessed the first two moves, but I had no real plan after either 23...fxe6 or 23...Kf8, the move played. It looked as if the ♔ could escape via e7 or e8 and d7.

I doubt if I solved it back in February either. The worst part is that I don't remember. I wonder if I would do better the second time around on any of the puzzles. A discouraging thought . . .

Sep-09-07
Premium Chessgames Member
  chessgames.com: We posted this puzzle by accident, not realizing it was used only a few months ago. As we're only 90 minutes into the new day, we posted a replacement puzzle, V Kovacevic vs H Ree, 1980.
Oct-04-10  cehertan: A nice win for the former US Champ--another great talent who quit in his prime.
Jun-20-14  RookFile: 18. c5 is a terrific move by white. This ugly move keeps the black queen out of the game.
Apr-18-15  yadasampati: 22. Rxe6 was a move that came into my mind immediately when i saw the position, followed by fxe6 and 23. Qg6. Wilder played 22. Bxh6 followed by gxh6 and then 23. Rxe6. I wonder if the immediate 22. Rxe6 also works. I hope that someone can either confirm or disprove that (preferably the first).
Apr-18-15  diagonalley: whoof... i wouldn't have got this one in a month of saturdays - the sacrifice follow-up 23.RxKP is just startling... lein must have wondered what hit him
Apr-18-15  Cheapo by the Dozen: My thoughts were much as <yadasampati>'s.
Apr-18-15
Premium Chessgames Member
  patzer2: <yadasampati> Your 22. Rxe6!? is interesting but falls short after 22...fxe6 23. Qg6 Qb7 24. Bxh6 Bf8 25. Bg5 Qe7 26. Rh6 Rf5 27. Bxf6 Rxf6 28. Qh7+ Kf7 29. Ne5+ Ke8 30. Rh4 Rd5 (-1.28 @ 25 depth, Deep Fritz 14).
Apr-18-15
Premium Chessgames Member
  patzer2: Here's a look with Deep Fritz 14 at a key position in the game (21...?) and today's Saturday puzzle position (22. ?):

<21...Rad8?> This natural positional move doubling rooks on the d-file can't be wrong, can it? Yes it can, because it allows White the near winning combination which follows!

Instead, Black can hold with 21... Qb7! when Fritz indicates play might continue 22. a3 (not 22. Bxh6? gxh6 23. Rxe6 Qd7! ) 22... Rad8 23. Ba5 Re8 24. Bd2 Rc8 25. Qc1 Nd7 26. Rf4 Nf8 27. Rfe4 Ng6 =.

<22. Bxh6!!>

The try 22. Rxh6? wins for Black after 22...gxh6 23. Rxe6 fxe6 24. Qg6+ Kh8 (not 24... Kf8?? 25. Bxh6#) 25. Bxh6 Rg8 26. Qf7 Ng4 27. Qxe7 Nxh6 .

Interesting but falling short for white is 22. Rxe6!? fxe6 23. Qg6 Qb7 24. Bxh6 Bf8 25. Bg5 Qe7 26. Rh6 Rf5 27. Bxf6 Rxf6 28. Qh7+ Kf7 29. Ne5+ Ke8 30. Rh4 Rd5 (-1.28 @ 25 depth).

<22... gxh6?> Another natural response, which in this case is the decisive mistake.

Instead, Black can hold only a pawn down after 22... Ne8 23. Rg4 Bf6 24. Bg5 Qb7 25. Bxf6 Nxf6 26. Rf4 Nd7 27. Rh4 Nf8 28. Rg4 (+1.08 @ 20 depth).

<23. Rxe6!>

Not so good for White is 23. Rxh6? when Fritz indicates play might continue 23...Rf5 24. Rh3 Qc8 25. Qc1 Rh5 26. Rxh5 Nxh5 27. Qh6 Ng7 28. Re4 f5 29. Re1 Qd7 30. h4 Rf8 31. Qg6 a6 32. b4 Rf6 33. Qg5 Rf7 34. Qg6 Bd8 35. Re2 Rf6 36. Qg5 Kh7 37. Qf4 Qd5 38. Qd6 Rf7 39. Re3 Qxd6 40. cxd6 Rd7 41. Ra3 Rxd6 42. Rxa6 Bf6 43. a4 bxa4 44. Rxa4 Ne8 45. Ra8 Nc7 46. Ra7 Rd7 47. Rb7 Re7 48. Rb6 Nd5 49. Rxc6 Nxb4 50. Rd6 Nd5 (-1.08 @ 27 depth).

<23... Kf8>

If 23... fxe6?, then it's mate-in-six after 24. Qg6+ Kf8 25. Rxh6 Ng8 26. Rh8 Bf6 27. Qxf6+ Ke8 28. Rxg8+ Kd7 29. Qxd8#.

<24. Rxh6 Ng8>

Here Fritz prefers 24... Qc8, but Black is still busted after 25. Rhxf6 Bxf6 26. Rxf6 Kg7 (26... Ke7 27. Rh6 Qf5 28. Qe2+ Kf8 29. Rxc6 a5 30. Ra6 a4 31. Qxb5 axb3 32. Qxb3 Kg7 33. a4 ) 27. Rf4 Qe6 28. Ne5 Rxe5 (28... Rf8 29. Rg4+ Kf6 30. Qh7 Ke7 31. Qh4+ Ke8 32. Re4 f5 33. Re3 f4 34. gxf4 Rxd4 35. Nc4 Qxe3 36. fxe3 ) 29. dxe5 Qxe5 30. h3 .

<25. Rh8 f5 26. Qe2 Kg7 27. Ne5 1-0>

Black resigns in lieu of 27...Kxh8

(27... Nh6 28. Qh5 Rxh8 29. Rxe7+ Nf7 30. Rxf7+ Kg8 31. Qg6#; 27... Rxe5 28. Qh5 Nf6 29. Rxf6 Kxf6 30. Rh6+ Kg7 31. Qg6+ Kf8 32. Rh8#)

28. Qh5+ Kg7 29. Qg6+ Kf8 30. Qf7#.

Apr-18-15  morfishine: Black Queen out of play

Fascinating puzzle, especially if one takes the time and read all the posts going back to 2007

I finally figured <22.Bxh6> caused the most problems, but spent consderable time on <22.Rxe6>

The trickiest defense for Black appears to be 22.Bxh6 <22...Rf5> which was noted earlier

Very difficult to work through all the branches using just visualization

*****

Apr-18-15  Karne: <morfishine: Black Queen out of play

Fascinating puzzle, especially if one takes the time and read all the posts going back to 2007

I finally figured <22.Bxh6> caused the most problems, but spent consderable time on <22.Rxe6>

The trickiest defense for Black appears to be 22.Bxh6 <22...Rf5> which was noted earlier

Very difficult to work through all the branches using just visualization

*****>

Very difficult? This is child's play compared to the infinite amount of time you require to solve 2+2.

Apr-18-15
Premium Chessgames Member
  Penguincw: 22.Bxh6 is just screaming to be played, and I expected 22...Bxh6, but not 23.Rxe6.
Apr-18-15
Premium Chessgames Member
  kevin86: nice puzzle; the sacrifices open up the position for attack.
Apr-18-15  WDenayer: I found this easy. I'm not trying to be obnoxious – I miss Wednesday puzzles. But this is straightforward. White will win if he opens the h-file and brings the Q to h7. Opening the h-file is easy. Bringing the Queen to h7 is impossible as long as the N remains on f6. There seems to be no way to dislodge the N, so is this going to work or not? You solve the puzzle once you realise that there is a way to bring the Queen close to the Black King: 23. Rxe6. The N is unimportant. The rook cannot be taken (Qg6 next). White wins in all variations.
Apr-18-15  mistreaver: Saturday. White to play. Very difficult. 22.?
Motives are obvious. White has to attack the king.
I would like to start with following:
22 Bxh6! gxh6
23 Rxe6 fxe6
24 Qg6+ Kf8
25 Rxh6
and i will terminate the calculation here since i don't see what black can do here. But what if black rejects the rook, say
23 ... Bf8
24 Rxf6
and white will soon give rook on f6 and i think he is quite good here. Time to check and see how it went.
---
Ahhh, i see, 23... Kf8 24 Rxh6! is very clever. But i think i can claim some credit for this one. According to the computer however it is best not even to take the bishop but t play 22... Ne8
with lost position a pawn down.
However instead of 24 ... Ng8, 24... Qc8 is a better defence, forsing to take twice on f6 and remaining with lost position, but still black is exchange up and doesn't lose immediately.
Apr-18-15  ajile: Off topic but did anyone else get the mandatory Java Update warning window? I was forced to update Java and now I can't get the Chess Viewer Deluxe II to work anymore. The one that works is the lower quality one.

Note: I did a system restore and went back to the previous version of Java but when I click on Update Later in the Java warning window Firefox completely crashes.

Apr-18-15
Premium Chessgames Member
  agb2002: The material is identical.

I've considered 22.Rxe6 fxe6 23.Qg6 Bf8, 22.Bxh6 gxh6 23.Qc1 Bf8, 22.Bxh6 gxh6 23.Rxh6 Kg7, etc. but my head refuses to work today.

I don't know. I probably would try the slow 22.g4 instead of a more violent solution.

Apr-18-15  yadasampati: Thank you <patzer2>, for reacting on my question and your elaborate analysis
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