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Wlodzimierz Schmidt vs Jerzy Lewi
"Jerzy Sure" (game of the day Jun-04-2011)
Warsaw olm qual m2 (1968), Warsaw POL, rd 4
English Opening: King's English. Four Knights Variation Fianchetto Lines (A29)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 5 OF 5 ·  Later Kibitzing>
Sep-23-17  goodevans: <Boerboel Guy> 42...e3 and I'm not sure whether white has a win.

<BxChess> "41...Qd7 (what else?" - How about YouRang's 41...Na4?

Sep-23-17
Premium Chessgames Member
  WorstPlayerEver: 34. Rd6 cd6 35. Qd5 Kf8 36. Bf4

2 minutes, not bad for a Saturday puzzle :)

Sep-23-17
Premium Chessgames Member
  WorstPlayerEver: <patzer2: I was stumped and went for the flawed "win of a piece" in attempting to solve today's Saturday (34. ?) puzzle with 34. Rxe4?>

Yeah, first I had the same feeling eying at c5, but then I noticed White was a piece up ALREADY. Black seems to have sacked one. Thereafter the solution came almost instantly to me.

For the first rule is: look at all the pieces!

Sep-23-17  patzer2: <WorstPlayerEver> Thanks! Since White starts a piece up, I guess my flawed "win of a piece line" was actually a flawed simplification to keep the "extra piece" at too high a price (i.e. the four pawns Black gets for the Bishop after 34. Rxe4?)
Sep-24-17
Premium Chessgames Member
  WorstPlayerEver: <patzer2>

To my surprize Stockfish plays the same line. I looked at Bh6 or Rg7 -as sole moves- for a split second, but didn't see the combination.

However, I spend only 1 a 2 minutes on a puzzle. Depends on the day. Since we are speaking of game continuations, I try to simulate time pressure that way.

I can recommend this method; I rarely run into long -wrong- analysis these days :)

After all, like Kramnik has stated before; it's all about building confidence. Lack of confidence is the greatest enemy of every chess player, I assume.

Sep-10-21  catlover: Too difficult for me. Maybe I'll remember the solution to this puzzle next time around.
Sep-10-21  Brenin: 36 Rxd6 cxd6 (can Black survive with 36 ... Rd5, to stop 35 Qd5+?) 37 Qd5+ Kf8 (37 ... Ke7 38 Rxg7+) 38 Qxd6+ Kf7 (38 ... Kg8 39 Bxh6, or 38 ... Re7 39 Rxg7) 39 Bxh6 gxh6 40 Qd5+ seems be winning.
Sep-10-21
Premium Chessgames Member
  Breunor: Maybe this is harder than 3 stars?
Sep-10-21  rbhgroup: I found 34. Rxd6 to be followed by 35. Qd5+ fairly quickly, but could not see anything definitive for White after 34...Re5. After that, it was just a wild goose chase looking for a better idea...
Sep-10-21  mel gibson: I saw that move but I wasn't sure -
it's so complicated.

Stockfish 14 agrees with the first ply:

34. Rxd6

(34. Rxd6 (♖d5xd6 ♖e8-e5 ♖d6-d8 h6-h5 ♗e3xc5 ♕b5xc5 ♖d8-d7+ ♖e5-e7 ♖d7xe7+ ♕c5xe7 ♕d1-d5+ ♔f7-f8 ♖g4-h4 ♕e7-f7 ♕d5-a8+ ♕f7-e8 ♕a8xa3+ ♔f8-g8 ♕a3-b3 ♕e8-a4 ♕b3-e3 ♕a4-e8 ♗g2xe4 ♔g8-f8 ♔h2-g2 ♖c4-a4 ♕e3-d3 ♖a4-b4 ♖h4-f4 ♖b4-a4 ♕d3-f3 ♕e8-e5 ♗e4-d3 ♖a4xf4 g3xf4 ♕e5-e8 ♗d3-c4 ♕e8-d7 ♗c4-e6 ♕d7-d4 ♕f3-b7 ♕d4-d6 ♕b7-e4 b6-b5 ♗e6-d5 c7-c5 ♗d5-c6 ♕d6-e7) +7.57/38 194)

score for White + 7.57 depth 38 -
but Black doesn't take the Rook.

However -
if Black does take the Rook -
Stockfish 14 says:

34. .. cxd6

35. Qd5+ (35. Qd5+ (♕d1-d5+ ♔f7-f8 ♗e3-f4
♖e8-d8 ♗f4xh6 ♕b5-d7 ♕d5xc4 d6-d5 ♕c4-d4 ♕d7xf5 ♖g4xg7 ♔f8-e8 h3-h4 ♕f5-e5 ♕d4-e3 ♖d8-d7 ♖g7-g8+ ♔e8-f7 ♖g8-h8 d5-d4 ♕e3xa3 ♕e5-d5 ♕a3-c1 ♘c5-e6 ♕c1-b1 f6-f5 ♕b1xb6 ♕d5-d6 ♕b6-b5 ♔f7-g6 h4-h5+ ♔g6-f6 ♖h8-g8 ♔f6-f7 ♖g8-g5 ♘e6xg5 ♕b5xf5+ ♔f7-e8 ♗h6xg5 ♕d6-d5 ♕f5-g6+ ♔e8-f8 ♗g2xe4 ♕d5-f7 ♕g6-h6+ ♕f7-g7 ♗e4-f5 ♕g7xh6 ♗g5xh6+ ♔f8-e8 ♗f5xd7+ ♔e8xd7 ♗h6-f4) +9.15/37 135)

score for White +9.15 depth 37.

Sep-10-21  padraic: Pronounced "Yeshur," the sh voiced. So yeah sure, sure. A wonderful attack, too deep for me.
Sep-10-21
Premium Chessgames Member
  drollere: wow, sacrifice a R just to get it out of the way. "get off that square, i need it!"

i saw W was up a piece, so a sacrifice was worth it; i recognized that the Q had almost no useful moves, except perhaps for a1. but didn't see that solution.

Sep-10-21
Premium Chessgames Member
  drollere: that pawn on f5 turns out to be worth 2 Rs.
Sep-10-21
Premium Chessgames Member
  raymondhow: I got the first two moves, then wanted to play 36 Qxd6+. So that's probably a no-solve, durn it.
Sep-10-21
Premium Chessgames Member
  Teyss: Splendid despite some imperfections. Summary of above posts for lazy weekenders:
- Black shouldn't have taken the first R although 34...Re5 also loses;
- 36.Rxg7 is very impressive but only brings a small advantage whilst 36.Bxh6 or Bf4 wins;
- 38...Rg8 would have been better than ...Qd7? leading to a forced mate but would also have lost.

I especially like the variation 37...Kxh6? 38.Qf7. Black is 2 Rs up but can only avoid mate at huge cost.


click for larger view

Sep-10-21
Premium Chessgames Member
  chrisowen: Loggies avarice evicts auldgate Rxd6 finish able it leeway arrive hushed its loggies evicts auldgate finish hawthorne ghouls crayon virals quicks its jinky muffet its bupa its puzzled its whoosh colors dried it bemuse ape its x zloty u mufflers coat its definite floods dankly jowls boot agains avarice quirk baggage barbeque ugly its beg agains laid dams flighted its meg z ji cot agains daddy different stroke fate is dufflers smoke on the water fag sit mr i jag boggle with avids agains do its me cap u x razzled it just me it myself and I Rxd6 bite:
Sep-10-21  awfulhangover: 36.Qxd6 + my choice, and also seems to win.
Sep-10-21  Cellist: I saw the first two moves but then went for the obvious 36.Qxd6+, which also wins, albeit less elegantly than the triple sacrifice.
Sep-10-21
Premium Chessgames Member
  chrisowen: HUD Great call no?
Sep-10-21
Premium Chessgames Member
  Honza Cervenka: If 38...Rg8, then 39.Qxf6+ Kh7 40.Qh4 Rc8 41.Bf4+ Kg8 42.Qg5+ Kh8 43.Qh6+ Kg8 44.Qg6+ Kh8 45.Bxd6 Nd7 46.f6 Nxf6 47.Qxf6+ Kg8 48.Be5 Qd7 49.Qg6+ Kf8 50.Bd6+ looks like a forced win for white.
Sep-10-21
Premium Chessgames Member
  chrisowen: Jimmy d6 no x
Sep-10-21  johnnydeep: The first rook sac was puzzle-obvious, but the second rook sac was definitely not!
Sep-10-21
Premium Chessgames Member
  Jimfromprovidence: <Honza Cerevenka> <If 38...Rg8, then 39.Qxf6+ Kh7 40.Qh4> I missed 40 Qh4, below, in this line. I thought the position was a perpetual after 38...Rg8.


click for larger view

It's difficult to fathom that despite being down two rooks vs a bishop and a pawn that after 40 Qh4 white is in the drivers seat.

Sep-10-21
Premium Chessgames Member
  agb2002:

White has the bishop pair for a knight and three pawns.

White would like to play Qd5+. This suggests 34.Rxd6:

A) 34... cxd6 35.Qd5+

A.1) 35... Kf8 36.Rxg7 Kxg7 (36... Ne6 37.Qxb5 wins) 37.Bxh6+

A.1.a) 37... Kxh6 38.Qf7 Rg8 39.Qxg8 Qe8 40.Qxe8 wins.

A.1.b) 37... Kh7 38.Qf7+ and mate next.

A.1.c) 37... Kh8 38.Qf7 Rg8 (38... Qd7 39.Bg7+ Kh7 40.Qg6+ Kg8 41.Bf6+ Kf8 42.Qh6+ and mate in two) 39.Qxf6+ Kh7 40.Qf7+ Kh8 (40... Kxh6 41.Qxg8 as in A.1.a) 41.f6 (threatens 42.Bg7+ Kh7 43.Qh5+) 41... Qe8 42.Qxc4, threatening f7, looks very good for White.

A.2) 35... Ke7 36.Rxg7+ and mate next.

A.3) 35... Re6 36.fxe6+

A.3.a) 36...Kf8 37.Qxd6+ Kg8 (37... Ke8 38.Rxg7 wins) 38.Qd8+ Kh7 39.Qe7 Qd7 40.Rxg7+ wins decisive material.

A.3.b) 36... Kg8 37.e7+ wins.

A.3.c) 36... Ke7 37.Rxg7+ wins.

A.3.d) 36... Ke8 37.Rxg7, with many threats (Qa8#, Qxd6, Qh5+), wins.

B) 34... c6 35.Rd7+ Nxd7 (35... Re7 36.Rxg7+ Kxg7 37.Rxe7+ and mate next) 36.Qxd7+ Re7 37.Rxg7+ Kxg7 38.Qxe7+ followed by Bxh6 and Qg7#.

C) 34... Re7 35.Qd5+ Kf8 (35... Ke8 36.Rd8#) 36.Rxf6+ Ke8 (36... gxf6 37.Rg8#) 37.Qg8+ Kd7 38.Rxg7 looks winning.

Sep-10-21
Premium Chessgames Member
  agb2002: According to DroidFish 41.f6 is a blunder which only achieves a draw, while 40.Qh4 wins. I saw this move and spent a long time trying to make it work unsuccessfully.
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