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Oldrich Duras vs David Janowski
San Sebastian (1911), San Sebastian ESP, rd 1, Feb-20
Spanish Game: Morphy Defense. Duras Variation (C77)  ·  0-1
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Kibitzer's Corner
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Feb-25-07
Premium Chessgames Member
  beatgiant: <Fisheremon>
<128.Rf5+? losing (128.Rf7 could save)>

I don't see the save after 128. Rf7 Kb6. Could you show what you found here?

Feb-25-07  Fisheremon: <beatgiant: <Fisheremon> <128.Rf5+? losing (128.Rf7 could save)>

I don't see the save after 128. Rf7 Kb6. Could you show what you found here?> 129.Kd5 c3 130.Rf1 Rc7 131.Kd4 c2 132.Rc1 Rc5 133.Rxc2 Rxc2 134.Kxc2 draw

Feb-26-07
Premium Chessgames Member
  beatgiant: <Fisheremon>
128. Rf7 Kb6 <129.Kd5 c3 130.Rf1 Rc7 131.Kd4 c2 132.Rc1 Rc5 133.Rxc2 Rxc2 134.Kxc2 draw>

I assume it's a misprint for 133. Kd3 first, followed by 134. Rxc2. You are right, I wasn't able to find any win for Black here.

Feb-27-07
Premium Chessgames Member
  beatgiant: <Fisheremon>
<The most notable moment anyway was 27th Black's move: 27...bxc4 seems to be winning. The rest of the game was a bit boring unless moments noted by people here.>

A long and closely-fought game like this has lots of lessons for an amateur player like me.

What surprised me the most is how White could hold out for so long, although he looks positionally busted by around move 25 (White has overextended kingside pawns and numerous weak spots, Black has center control and attacking chances on both wings).

On 27...bxc4 28. bxc4 Rb2 29. Nf3 Qe7 30. a3 Rab8, and White can't contest the b-file or second rank. But surely Black must have had similar opportunities at many other phases of this game.

Feb-27-07  Fisheremon: <beatgiant: On 27...bxc4 28. bxc4 Rb2 29. Nf3 Qe7 30. a3 Rab8, and White can't contest the b-file or second rank. But surely Black must have had similar opportunities at many other phases of this game.> A better defense is 28.dxc4, but Black's attack along d-file and diagonal a1-h8 with Knight on b4 should be winning.

The best defense is 28.Nf3, then 28...Qe7 29.dxc4 Rd8 30.Qe3 Rxd1 31.Bxd1 Rd8 32.Bc2 Nd4 leading in the best case for White to a rook ending, but lost because of bad White's pawns structure.

<What surprised me the most is how White could hold out for so long, although he looks positionally busted by around move 25 (White has overextended kingside pawns and numerous weak spots, Black has center control and attacking chances on both wings).> After that Black's a bit better but the game should be evaluated as equal.

Mar-02-07
Premium Chessgames Member
  beatgiant: <Fisheremon>
<The best defense is 28.Nf3, then 28...Qe7 29.dxc4 Rd8 30.Qe3 Rxd1 31.Bxd1 Rd8 32.Bc2 Nd4 leading in the best case for White to a rook ending, but lost because of bad White's pawns structure.>

I just assumed White would be lost if he has to recapture with the d-pawn, since it looks like the e-pawn is doomed to fall quickly. For example, 27...bxc4 28. Nf3 Qe7 29. dxc4 Nb4, etc. but maybe you looked deeper and saw White can survive to a rook ending.

<After that Black's a bit better but the game should be evaluated as equal.>

I agree the knight trade with ...Nd4 gives up some of the advantage, since Black's knight could be important in some attacks. Also 30...bxc4 looks premature. Black should only make that exchange when prepared to follow up by breaking through on the b-file.

Could you clarify your point that <the game should be evaluated as equal>? You mean you looked carefully between moves 27 and 96 and didn't see any winning chances for Black?

Mar-02-07  Fisheremon: <beatgiant:I just assumed White would be lost if he has to recapture with the d-pawn, since it looks like the e-pawn is doomed to fall quickly. For example, 27...bxc4 28. Nf3 Qe7 29. dxc4 Nb4, etc. but maybe you looked deeper and saw White can survive to a rook ending.> Black's Queen at e5 is a serious advantage of Black, so if Black could ccupy d-file (or b-file) the game should be ended (as you've shown in variation 27...bxc4 (a similar thing with 27...dxc4). So the best move was 27...Nf3, but still losing as I've shown

<Could you clarify your point that <the game should be evaluated as equal>? You mean you looked carefully between moves 27 and 96 and didn't see any winning chances for Black?> After 27...Nd4 28.Nf3 (key move) Black has no more advantage with Queen on diagonal a1-e5, also the position now is of closed type, quite difficult to fight for occupying b-file or d-file, cos' 27...Nd4 losing a tempo that quite important, e.g. at move 96.Ke3? etc. .

Mar-02-07
Premium Chessgames Member
  beatgiant: One possible improvement is 30...Bxe4. Then on 31. Qe3 Qc3 32. dxe4 Qxc2 and Black is breaking through.
Mar-02-07  Fisheremon: <beatgiant: One possible improvement is 30...Bxe4. Then on 31. Qe3 Qc3 32. dxe4 Qxc2 and Black is breaking through.> 32.Qxe4 Qxc2 33.Rdf1 and White's now a bit better.
May-05-07  iccsumant: Ahhh... my hands are paining pressing the forward button for this one. How long would it have been if white didn't resign?
May-05-07
Premium Chessgames Member
  beatgiant: <iccsumant>
<How long would it have been if white didn't resign?>

It's mate in 17 according to Nalimov tablebase ;-)

Oct-26-08
Premium Chessgames Member
  Pawn and Two: <beatgiant & Fishermon> At move 24, Janowski missed a continuation which would have led to a clearly winning position for Black: (1.63) (24 ply) 24...Nb4! 25.Qd2 Qd6 26.Rf3 Qd4 27.Rd1 bxc4 28.Nxg6+ fxg6 29.dxc4, (3.58) (23 ply) 29...Rf8 30.Ke2 Rxf3 31.Qxd4 cxd4 32.Kxf3 Nxc2, or 31.Kxf3 Nxc2, also winning for Black.

The move played by Janowski, 24...Qd4, favored Black, but was not clearly decisive: (1.13) (24 ply) 24...Qd4 25.Rd1 Rd8 26.Qf2 Qe5 27.Kf1 bxc4 28.bxc4 Rab8 29.Bb3 a5 30.Rg2.

Oct-26-08
Premium Chessgames Member
  Pawn and Two: <beatgiant & Fisheremon> Regarding the suggestion 27...bxc4, Fritz agrees that 28.Nf3 is White's best reply.

Fritz evaluates the position after 27...bxc4 28.Nf3 as: (-.93) (24 ply) 28...Qe6 29.dxc4 Rd8 30.Qe3 Rxd1 31.Bxd1 Rd8 32.Be2 Nd4 33.Bd3; or (-.92) (24 ply) 28...Qe7 29.dxc4 Rd8 30.Qe3 Rxd1 31.Bxd1 Kg8 32.e5 Re8 33.Rg1. In the second variation, Fritz shows Black's advantage slipping a bit, (.83) (20 ply) 33...Rd8 34.Be2 Bc2.

Black is clearly better in these variations, but a clear winning line is hard to demonstrate, as opposed to the clear winning advantage Black would have after 24...Nb4!.

Oct-29-08
Premium Chessgames Member
  Pawn and Two: <beatgiant & Fisheremon> A review by Fritz agrees with earlier analysis that 96.Bd1 would lead to a draw: (-.17) (29 ply) 96.Bd1 Ke6 97.Bf3 Ra1 98.Bd1 Ke5 99.Rf3 Kd4 100.Rf4 Rb1 101.Rf1 Rb7 102.Bc2 Rb6 103.Bd1 Rb4 104.Bc2 Rb7.

After 96.Ke3?, White still has some drawing chances: (-.50) (29 ply) 96.Ke3 f6 97.gxf6 gxf6 98.Rf3 Rh1 99.Rg3 Bf7 100.Rg7 Be6 101.Rc7, (-.50) (23 ply) 101...Kd6 102.Ra7 Rxh4 103.Bd1 Rh3+ 104.Kd2 h4 105.Rxa5 Rg3 106.Ra8 h3 107.Rh8 Rg8 108.Rxg8 Bxg8 109.a5 h2 110.Bf3 Bf7, (-.83) (26 ply) 111.Ke3 Bh5 112.Bh1 Kc7 113.d4! cxd4+ 114.Kxd4. Now after: 114...Be8 115.Kc5 Kb7 116.Kd6 Ka6 117.Ke7 Bh5 118.Kd6!, White can obtain a draw.

If instead, 96.Ke6? f6 97.gxf6 gxf6 98.Rf3 Rg4 99.Rh3 f5, then 100.exf5 Bxf5 101.Rh1 (-.61) (25 ply) 101...Be6 102.Bd1 Rg3+ 103.Kd2 Kd4 104.Bxh5 Rxd3+, (-.47) (23 ply) 105.Ke1 Bxc4 106.Bd1 Re3+ 107.Kf2 Bd5 108.Rh2 Re6 109.h5 Rh6, and White has drawing chances after, (-.47) (24 ply) 110.Ke2 Kc3 111.Rh3+ Kb4 112.Ke3 c4 113.Rh4.

Oct-31-08
Premium Chessgames Member
  Pawn and Two: <beatgiant & Fisheremon> An updated review by Fritz indicates White could have obtained a near equal position after: (-.08) (26 ply) 99.Bf3 Rb3 100.Ra1 Rb4 101.Rg1 Rb2 102.Rf1 Kd6 103.Bd1 Ke6 104.Rf2 Rb1 105.Rf1 Ke5.

Even after Duras played 99.Bc2, Fritz indicates White should be able to draw:(-.29) (26 ply) 99.Bc2 Bxe4 100.Rb1 Bf5 101.Rb6 Kd6 102.Rb1 g6 103.Kd2 Ke5 104.Rb6 Bd7, or Black could try: 104...Kf4 105.Rxc6 Kg4 106.Rxc5 Kxh4 107.Rxa5 Kxg5 108.c5, but White appears to be able to draw in this variation also.

Nov-03-08
Premium Chessgames Member
  Pawn and Two: <beatgiant & Fisheremon> At move 100, Fritz indicates: (.00) (28 ply) 100...Bg6 101.Rb6 Kd6 102.Rb1! (not 102.Ra6?) 102...Bf5 103.Kd2 Ke5 104.Rb7 or 104.Rb6; or a near equal position after: (-.29) (28 ply) 100...Bf5 101.Rb6 Bd7 (-.24) (26 ply) 101.Rb6 Bd7 102.Bd1 (not 102.Rb1?) 102...f6 103.gxf6 gxf6 104.Bxh5 Rxa4 105.Rb7.

At move 102, Fritz indicates the position was equal: (.00) (26 ply) 102.Rb1 Bf5 103.Kd2 Ke5 104.Rb7 or 104.Rb6.

White erred with 102.Ra6?: (-.70) (26 ply) 102.Ra6? Ra1 103.Rxa5 Rh1, (-.67) (27 ply) 104.Ra6 Rxh4 105.a5, and Black has a winning endgame after 105...Rh3+ 106.Kf4 Bxd3; or if 105...Rh3+ 106.Kd2, Black still has winning chances with: 106...h4 107.Rb6 Rh2+ 108.Kc3 Rh1 109.Ba4 Ra1 110.Rxc6+ Ke7.

In the game, White tried 105.Bd1 instead of 105.a5. After 105.Bd1, Black could have obtained a clear winning position by: (-.86) (26 ply) 106...h4! 107.Ra8 Kc7 108.a5 Kb7 109.Rh8 Bf5 110.Kf2 h3 111.Kg3 Bxd3 112.Bxd3 Rxd3+ 113.Kh2 Rf3!.

Nov-04-08
Premium Chessgames Member
  Pawn and Two: As indicated, after: 105.Bd1? Rd4 106.Be2, Black could have obtained a winning position by playing 106...h4!.

After 106...Kc7?, White had good drawing chances with: 107.a5! Rd6, (-.46) (25 ply) 108.Rb6 h4 109.Rb1 Rd8 110.a6 Rb8 111.Rh1 Kb6 112.Rxh4 Rd8 113.Rh1 Kxa6 114.Rb1.

White also had good drawing chances after: 107.a5! Rd6 (-.48) (25 ply) 108.Kf2 h4 109.Bf3 h3 110.Kg1 Bxd3 111.Ra7+ Kb8 112.Rxf7 Bxc4 113.Rxg7 Bd3.

Instead, after 107.Ra8?, Black could have obtained a winning position: (-.99) (30 ply) 107.Ra8? h4 108.a5 Kb7 109.Rh8 Bf5 110.Kf2 h3 111.Kg3 Bxd3 112.Bxd3 Rxd3+ 113.Kh2 Rf3 114.Rg8 g6 118.Rf8 Rf5 116.Kxh3 Rxg5.

Nov-05-08
Premium Chessgames Member
  Pawn and Two: Black made a serious error with 114...Rd7??, after which White had good drawing chances by: 115.Bf3 Kb7 116.Be4 Bxe4 117.dxe4 g6 118.Rh8 Ka6 119.Rxh3 Kxa5 120.Rh1 Kb4 121.Rc1 Ra7 122.Kf4 Re7.

Instead, Black could have won by: (-1.03) (27 ply) 114...g6! 115.Rh8 Rd7 116.Bf1 Ka6 117.Ra8+ Ra7 118.Rh8 Re7+ 119.Kd2 Re5 120.Ra8+ Kb7 121.Rh8 Bg4 122.Bxh3 Re2+ 123.Kc3 Rh2 124.Rf8 Rxh3 125.Rxf7+ Ka6, and Black is winning after: 126.Rf6 Bd7 127.Rd6 Be8 128.Rd8 Re3.

Nov-05-08
Premium Chessgames Member
  Pawn and Two: Instead of 115.Bf3!, with good drawing chances, White erred with 115.Kf4?. Black then had a chance to win with: (-1.02) (27 ply) 115...Bh7! 116.Kg3 Bxd3 117.Bxd3 Rxd3+ 118.Kh2 Rd7 119.Re8 Ka6 120.Re5 Kxa5 121.Rxc5+ Kb6 122.Rf5 f6 123.gxf6 gxf6 124.Kxh3 Rd4 125.Rxf6 Rxc4, with a winning ending for Black.

Instead of 115...Bh7!, Black then erred with 115...Be6?. After 115...Be6? 116.Bf3, the win has again slipped away: (-.46) (27 ply) 115...Be6? 116.Bf3 Kb7 117.Be4 g6 118.Ke5 Bg4 119.Kf4 Be2 120.Ke3 Bf1 121.Re8 Bg2 122.Bxg2 hxg2 123.Kf2, and Fritz indicates the game will be a draw after: (-.15) (27 ply) 123...Rd4 124.Kxg2 Rg4+ 125.Kf3 Rxg5 126.Re7+ Ka6 127.Rxf7 Kxa5.

Nov-09-08
Premium Chessgames Member
  Pawn and Two: White then erred with 120.Be4??. Instead, he could have obtained an equal position by: (.00) (23 ply) 120.Bd5! Bxd5 121.cxd5 fxg6 122.Rb8+ Kc3 123.Rh8 Re7+ 124.Kd6 Re3 125.Kxc5 Rxd3 126.d6 Kd2 127.Kc6; or (.00) (23 ply) 120.Rb8 Kc3 121.Bd5 Bxd5 122.cxd5 fxg6 123.Rh8 Re7+ 124.Kd6 Re3 125.Kxc5 Rxd3 126.d6 Kd2 127.Kc6.

After 120.Be4??, Fritz indicates Black can win by: (-.90) (23 ply) 120.Be4?? h2! 121.Rh8 Ra2 122.Rh7 Re2 123.Kf4 Kc3 124.Kg3 f6 125.Bg2 Bf5 126.Rxg7 Bxd3; (-1.25) (27 ply) 127.Rg8 f5 128.Bh1 f4+ 129.Kxf4 Re1 130.Bg2 Rg1 131.Ba8 Rxg6 132.Rh8 Rf6+; (-1.55) (26 ply) 133.Kg3 Kxc4 134.Rh4+ Kc3 135.Bd5 Rf5 136.Ba2 Bc4 137.Bxc4 h1Q 138.Rxh1 Kxc4, and Black is winning.

Instead of 120...h2!, Black played 120...Kc3?, and again the win had slipped away.

Nov-09-08
Premium Chessgames Member
  Pawn and Two: At his 127th move, White had two good choices: (-.01) (25 ply) 127.Rb3+ Kc6 128.Rc3 Rc7 129.Rc2; or (-.15) (25 ply) 127.Rf3 c4 128.Rf7 Kb6 129.Kd5.

However, after 127.Rf3 c4, White had to play 128.Rf7! to obtain the draw: (.10) (27 ply) 128.Rf7! Kb6 129.Kd5 c3 130.Rf1 Rc7 131.Kd4 Ka5 132.Kd3 Rc6 133.Rb1 Ka4 134.Kc2 Rxg6 135.Kxc3 Rg2 136.Kd4 g5, or 128.Rf7! Ra6+ 129.Kf5 c3 130.Rxg7 c2 131.Rc7 Rc6 132.Rxc6, and it is a draw.

White was lost after: (-3.03) (27 ply) 128.Rf5+?? Kb6 129.Rf1 Rc7 130.Kd5 Kb5 131.Kd6 Rc8; or (-3.00) (27 ply) 128.Kd5?? Rd7+ 129.Ke5 Kc6 130.Rf1 Rd5+ 131.Ke4 Rd6 132.Rf7 Rxg6, or 132.Rg1 Kc5 133.Ke5 Rc6.

After 128.Rf5??, White received no more opportunities for a draw, and finally this marathon game came to an end after 161 moves. This game was apparently even too much for J. Mieses and M. Lewitt, who in their book of the 1911 San Sebastian tournament, provided no annotations for this game.

Jan-17-09  WhiteRook48: sometimes the extra pawn makes no difference, sometimes it does. "Pawns are the soul of chess."
--Philidor
Oct-21-10
Premium Chessgames Member
  GrahamClayton: Duras became the first player to lose 2 games of over 160 moves in international tournament history, 4 years after losing to Wolf at Carlsbad in 168 moves:

H Wolf vs Duras, 1907

These 2 games remained as the longest played in international tournament chess until 1950.

Jun-18-18  Omnipotent00001: 126. Rf3 draws
Jun-18-18  Omnipotent00001: Black mates in 43 with 128...Kb6
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