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Oldrich Duras vs Matteo Gladig
Match (1909), Trieste AUH, rd 2, Nov-??
Spanish Game: Morphy Defense. Anderssen Variation (C77)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Dec-16-19  SamAtoms1980: Black probably draws this if he doesn't take the bishop right before the combo. 24....Qf5 25.Nxe6 Qxe6 26.Rxd8 and it's a level position
Dec-16-19  tjshann: Rook takes Bishop. When the dust is settled, White is up the exchange with some work yet to be done
Dec-16-19
Premium Chessgames Member
  agb2002: White has two rooks for the queen, a bishop and a pawn.

Black threatens Ke7.

The position of the black king and queen allow two double attacks: 25.Rxd8+ Qxd8 26.Nxe6+ ends up an exchange ahead.

Dec-16-19  lost in space: 25.Rxd8+ Qxd8 26.Nxe6+ and thats it
Dec-16-19  saturn2: 25. Rxd8+ Qxd8 (Ke7 26. Rxd3) 26. Nxe6+ Ke7 27. - Nxd8 Kxd8 and white is an exchange up
Dec-16-19  Carrots and Pizza: What about a fried liver attack at move 9?

9.Nxf7 Kxf7 10.Qf3+ Ke6 11.Nc3

Looks pretty good to me!

Dec-16-19  Walter Glattke: 25.Rxd8+ Qxd8 26.Nxe6+ Ke7 27.Nxd8 Kxd8
Dec-16-19
Premium Chessgames Member
  An Englishman: Good Evening: 5.d3 poses surprisingly tricky problems. Black had to play 6...Be7 or ...Bc5, and after 8.exd5,Nd4 looks like his best hope. Either way, a bunch of Black pawns seem to meet an early demise in return for a counterattack.
Dec-16-19  mel gibson: Pretty easy with a nice Knight fork.

Stockfish 10 says:

25. Rxd8+

(25. Rxd8+ (♖a8xd8+ ♕d3xd8 ♘g5xe6+ ♔f8-e7 ♘e6xd8 ♔e7xd8 ♖a1-a5 ♔d8-e7 ♖a5xb5 ♔e7-d6 ♔g1-f1 e5-e4 ♔f1-e2 ♘f6-d5 ♖b5-b8 ♘d5-f6 h2-h4 ♔d6-e6 ♖b8-h8 ♔e6-e5 ♖h8-c8 ♔e5-d6 ♔e2-e3 ♔d6-e5 g2-g3 g7-g6 ♔e3-d2 ♔e5-d6 ♔d2-e2 ♔d6-d7 ♖c8-h8 ♔d7-e6 ♔e2-e3 ♔e6-e5 ♖h8-c8 h7-h5 ♔e3-e2 ♘f6-d5 ♖c8-e8+ ♔e5-f5 ♖e8-a8 ♔f5-e5 ♖a8-a5 c7-c6 ♖a5-c5 ♔e5-d6 ♖c5-c4 ♘d5-f6 ♖c4-a4 ♔d6-e6 ♖a4-a6) +5.28/43 72)

score for White +5.28 depth 43

Dec-16-19
Premium Chessgames Member
  malt: 25.R:d8+ Q:d8 26.N:e6+ Ke7 27.N:d8 K:d8
Dec-16-19
Premium Chessgames Member
  agb2002: <An Englishman: Good Evening: 5.d3 poses surprisingly tricky problems.>

White missed a Fegatello-like attack starting with 9.Nxf7.

Dec-16-19
Premium Chessgames Member
  agb2002: I've just noticed <Carrots and Pizza>'s post with the same idea.
Dec-16-19  TheaN: Black was way too greedy on move 24, considering he'd go up material with Kxf8. Obviously he doesn't, penalized with the winning <25.Rxd8+ Qxd8 (else Rxd2 +-) 26.Nxe6+ Ke7 27.Nxd8 Kxd8 +->.

Here I was convinced White's done and even without the followup he is, but he can deliver the coup de grace immediately with 28.Ra5! c6 (else Rxb5) 29.Ra6, with either 29....c5 30.Ra5 +- or 29....Kd7 30.Ra7+ +- and White immediately wins a crucial pawn. White played Rc1 with similar ideas but had to work a bit harder, ending up giving back the exchange on move 37 for an easy win.

Exchange up positions can be tricky. Last Saturday I ended up with this position:


click for larger view

I managed to win the exchange and a pawn from a relatively difficult 'en prise chain' and have to be careful here. Only 1....Rf8! saves the exchange at penalty of 2.Nxe7+ Kh8 3.Nd5 giving White an outpost and even pawns, but I had realized that after 3....Bxb2! I win a pawn back, as after 4.Rb1 Be5 taking on b6 is not good for White in any case. It followed 5.Rf1 Kg7 6.Bg4 b5 breaking through, 7.axb5 axb5 8.cxb5 Rxb5 9.Be2 Rb2 10.Kf3 logical but doesn't work because of 10....Bxg3! 0-1, the key being 11.Kxg3 Rxe2 12.Rf6? Rxe3+ -+

Dec-16-19  zb2cr: White wins the exchange by 25. Rxd8+, Qxd8; 26. Nxe6+, Ke7; 27. Nxd8, Kxd8.
Dec-16-19  stacase:   
Well the first thought was a pure and easy back rank mate, but that wasn't really there, so, uh. Oh look a royal fork! And Black continued on Knight against a Rook because????
Dec-16-19  Damenlaeuferbauer: After long pondering, my old Czech friend Oldrich finally found conquering black's queen with 25.Rxd8+!,Qxd8 26.Nxe6+,Ke7 27.Nxd8 and went to a won rook vs knight ending. Many decades ago he entrusted me, that he refuted the Delayed Steinitz variation of the Ruy Lopez (1.e4,e5 2.Nf3,Nc6 3.Bb5,a6 4.Ba4,d6) with 5.c4!. Great stuff!
Dec-16-19
Premium Chessgames Member
  patzer2: Instructive game for novices not only because of the double attack and knight fork combination winning the exchange and solving today's Monday (25. ?) puzzle, but also because of the exchange of Rook for Knight for a winning endgame with 37. Rxd7 +-.

P.S.: Black's initial mistake was 8...Nxd5?, allowing the game continuation 9. Qf3 ± to +- (+2.15 @ 30 ply, Stockfish 10).

Also possible after 8...Nxd5? is 9. Nxf7! Kxf7 10. Qf3+ Ke6 11. Nc3 Nd4 12. Bxd5+ Kd7 13. Qh3+ Kd6 14. Qg3 +- (+2.74 @ 35 ply) with an attack resembling the fried liver variation of the Two Knights Defense.

Instead of 8...Nxd5? 9. Qf3 ± to +- (+2.15 @ 30 ply), Black can keep the game level with 8...Nd4 = (+0.11 @ 30 ply) as in Showalter vs Ed. Lasker, 1917.

Dec-16-19
Premium Chessgames Member
  keypusher: Good eye from <carrots and pizza> and <agb2002> -- 9.Nxf7 might have made for a pretty short game, or a short and pretty game, e.g. 9....Kxf7 10.Qf3+ Ke6 11.Nc3 Ne7 (11....Nb4 12.a3 +-; the engine picks 11....Nd4 12.Bxd5+ Kd7 13.Qd1; this is just to show what happens if Black tries to hang on to material)


click for larger view

White now has several winning continuations,

12.Ne4 threatening Nc5+ or Ng5+; 12....c6 13.Ng5+ Kd7 14.Nf7 wins material.

12.Nxd5 Nxd5 and now either

13.0-0 (more accurate than 13.c4 Bb4+ at once) or 13.Bg5 Qd6 14.c4

Simply 12.0-0 at once.


click for larger view

Duras's queen sacrifice combination shouldn't have worked; 24....Ne8!! instead of 24....Kxf8 is a fully adequate defense, e.g. 25.Be7 Bxe7 26.Rxe8+ Bf8 27.h3 h6! 28.Nxe6 Kf7 and Black hangs on by his fingernails (29.Rxf8+ Kxe6=; 29.Raa8?? Qb1+ 30.Kh2 Bd6 -+).

<And Black continued on Knight against a Rook because????>

Well, it did give Duras a chance to show off his skill at endgame problems.


click for larger view

There are lots of ways to win, but 37.Rxd7 Kxd7 38.Kd5! is definitely the most elegant.

Dec-16-19
Premium Chessgames Member
  chrisowen: Jabba the hut!
Dec-16-19  TheaN: <<kp>: Well, it did give Duras a chance to show off his skill at endgame problems.

There are lots of ways to win, but 37.Rxd7 Kxd7 38.Kd5! is definitely the most elegant.>

Elegant perhaps, Kd5 is a bit overkill: White theoretically only makes things harder by allowing the c-pawn to stay and giving Black the option to play Kc6-b5 with c4. After 38.Kxc5 Ke6 (everything else loses without a fight) 39.Kxb4 White's moving the king out of the way and playing b4-b8: Black has no practical way to improve the king side.

Dec-16-19
Premium Chessgames Member
  patzer2: Black's final, decisive mistake was the reflexive recapture 24...Kxf8? allowing our Monday puzzle solution combination 25. Rxd8+ Qxd8 26. Nxe6+ +- (+4.76 @ 30 ply, Stockfish 10).

Instead, Black can apparently keep it level with 24...Qf5! 25. Nxe6 Qxe6 26. Rxd8 = (0.00 @ 38 ply, Stockfish 10).

Dec-16-19
Premium Chessgames Member
  OhioChessFan: You have to get the final 19 moves to get full credit for Monday.
Dec-16-19  stacase: <OhioChessFan: You have to get the final 19 moves to get full credit for Monday.>

Ha ha ha ha ha ha ha ha ha ha!

Good one (-:

Dec-19-19  Scuvy: In Ka!endovsky's book on Duras, the game score ends 1-0 after White's 26th move.

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