Sunday, January 31, 2010

Corus: Report of round 13 (poor prizes...)

Corus: Report of round 13

Magnus Carlsen, the world’s highest rated player, won the 10,000-euro first prize in the 72nd annual Corus Chess Tournament Sunday. Coached by former world champion Gary Kasparov, the 19-year-old Norwegian played attacking chess throughout to collect 8.5 points for a tournament score of five wins, seven draws and one loss. His aggressive style almost came to cost him dearly in his final-round game from a Ruy Lopez against Italy’s Fabiano Caruana but after 56 moves, he managed to salvage a draw.

World champion Viswanathan Anand of India agreed to a draw after 39 moves with black from a Meraner against Loek van Wely to remain the only unbeaten competitor in the tournament’s highest division. But his track record of eleven draws and two victories got him no further than a shared fourth place. ‘Vishy’ tried, of course, but to no avail, and during the post-mortem he was heard to complain about his usually more aggressive opponent: “On the day that Loeky starts playing for a draw, what can a man do?”

The two runners-up at the outset of Sunday’s thirteenth round, Spain’s Alexei Shirov and Russia’s Vladimir Kramnik, remained just that: runners-up. Kramnik was satisfied with a half point after just 21 moves with white from a Queen’s Indian that never really got underway. Shirov’s game with white against Leinier Dominguez, however, was quite a different matter. Some twenty moves into a Najdorf, the Spanish mercenary unleashed a ferocious attack, sacrificing his way through black’s kingside.

The situation remained unclear to the point where even Carlsen, who had come by to see what was happening on the neighbours’ board, was nonplussed. “I couldn’t figure out Shirov’s game,” he said. “But I was concentrating on my own game, of course.” You bet he did. A win for Shirov would mean the Norwegian needed a win himself to stay ahead in the race for an unshared first prize and whatever Carlsen may have thought of Shirov’s chances, he decided to go all out against Caruana regardless. Unfortunately, Carlsen said, “Caruana defended very well, while I miscalculated in the middle game.”

Shirov, a piece down meanwhile, used up almost all of his time to find a win. He came close. Dominguez made a fatal mistake on his 30th but followed it up with a peace proposal. With only two seconds on the clock, Shirov failed to see the rather obvious win and went for the half point.

That meant a draw was enough for Carlsen to finish an unshared first but his ‘miscalculation’ had led to serious trouble, or rather, as he put it himself, “what I thought was a promising position, in fact turned out to be very bad. Fabiano and I both thought black should have excellent winning chances in the knight endgame.” He may have but neither experts nor computers were able to show how. “Surprisingly, I drew,” Carlsen explained, adding: “I had some good games; sometimes I played well and sometimes I played lousy. In the end, I won the tournament with a lot of luck.”

Shirov took half of the 10,500 euros for the combined second and third prize, and received a bonus when he and Dominguez were declared the co-winners of the 500-euro ‘Ymouth Versatile Prize’ for the day’s best performance in the tournament’s top group. Hikaru Nakamura of the U.S. scored the only victory on the last day of Corus A, downing Holland’s Sergei Tiviakov after a grueling 79 moves with white in a Scandinavian game. Vassili Ivanchuk and Peter Leko settled for a draw after 27 uneventful moves in a Meraner, but the way in which Nigel Short and Holland’s Jan Smeets reached the same result had chess fans on the edge of their seats. Both players used up oodles of time in a highly unusual but very entertaining Petroff before agreeing to split the point by repetition on their 14th.

In Group B, the daily prize of 250 euros went to Germany’s Arkadij Naiditsch for his win in 51 moves with white from a French game against Erwin l’Ami. The winner of the 3000-euro first prize in this section of the tournament was Dutch champion Anish Giri, who notched up a tournament total of 9 points after a draw in final-round action. “I’m happy I won,” the 15-year old said, “of course I’m happy but not exceedingly so. Let’s say I’m on cloud eight.” He also won four 250-euro ‘Ymouth Versatile’ prizes but the youngster wasn’t interested in the money. “What I’m most happy about,” he said, “is my place in the A Group next year. No, I’m not afraid to face the super-Elos. I’ll have a year to prepare for them.”

China’s Li Chao finished the winner in Group C. Having secured first place the day before, he ended the tournament with a win over Dutch women’s champion Zhaoqing Peng in 41 moves from a French Opening.

Carlsen, M (2810) - Caruana, F (2675), [C77] Corus A (13), 31.01.2010

[Event "Corus A"]
[Site "Wijk aan Zee"]
[Date "31.01.2010"]
[Round "13"]
[White "Carlsen, M (2810)"]
[Black " Caruana, F (2675)"]
[Result "½"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c3 g6 7.Nbd2 Bg7 8.Nf1 O-O 9.Bg5 d5
{ Move out of book ( h6 100%)}
10.Qe2 Qd6 11.Bxf6 Bxf6 12.Ne3 Ne7 13.Bb3 c6 14.h4 Be6 15.Ng5 Bd7 16.Rd1 Rad8 $201 17.Qf3 $6
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.17 / -0.88}
( 17.O-O b5 18.Rfe1 h6 19.Nf3 a5 20.a4 b4 21.Qc2 bxc3 22.bxc3 Rb8 23.Rb1 Be6 24.h5 gxh5 25.Ba2 dxe4 26.dxe4 $10 )
17...h6 18.Nc4 dxc4 19.dxc4 Nd5 20.Nh3 h5 21.Qg3 Bg4 22.Rd2 Bxh4 23.Qxh4 Qf6 24.Qxf6 Nxf6 25.Ng5 c5 26.f3 Bc8 27.Ba4 Kg7 28.Rxd8 Rxd8 $201 29.b4
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.49 / -0.90}
( 29.b3 Ng8 30.Ke2 Ne7 31.Rd1 Rxd1 32.Kxd1 f6 33.Nh3 Bxh3 34.gxh3 Kh6 35.Ke2 Kg5 36.Ke3 Kh4 37.Bd7 Nc6 38.Bc8 Nd8 39.b4 b6 40.f4 exf4+ 41.Kxf4 Nf7 42.Bxa6 Kxh3 $10 )
29...Rd3 30.bxc5 Rxc3 31.Kd2 Rxc4 32.Bb3 Rxc5 33.Nxf7 $201 a5 $201
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score
change from/to: -0.89 / -0.58}
( 33...Ne8 34.Rd1 a5 35.a4 Kf6 36.Ke2 Rc3 37.Rb1 Bd7 38.Bd5 Bc6 39.Nd8 Rc2+ 40.Kd3 Rxg2 41.Bxc6 bxc6 42.Nxc6 Ra2 43.Nxa5 Rxa4 44.Nc4 Nc7 )
34.Rc1 $6 $17
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score
change from/to: -0.58 / -1.54}
( 34.Nd6 b6 35.a4 Ba6 36.Rb1 Kf8 37.Nf7 Ke7 38.Ng5 Rc6 39.Bd5 Nxd5 40.exd5 Rd6 41.Ke3 Rxd5 42.Rxb6 Rd6 43.Rxd6 Kxd6 44.Ne4+ Kd5 )
34...Rxc1 35.Kxc1 a4 36.Bc4 b5 37.Nd6 bxc4 38.Nxc8 h4 39.Nb6 Nh5 40.Nxc4 Kf6 41.Kd2 Nf4 42.Ke3 Nxg2+ 43.Kf2 Nf4 44.Nb2 a3 45.Nc4 Nd3+ 46.Kg2 Kg5 47.Nxa3 Kf4 48.Nc2 $201 Nb2
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.96 / -0.52}
( 48...h3+ 49.Kxh3 Kxf3 50.Kh4 Kf4 51.a4 g5+ 52.Kh3 Kf3 53.Kh2 Nf4 54.Kg1 Ne2+ 55.Kh1 Ng3+ 56.Kg1 Nxe4 57.a5 Nc5 58.Nb4 e4 59.a6 Nxa6 60.Nxa6 e3 61.Nb4 e2 62.Nc2 Kg3 63.Ne1 g4 64.Nc2 Kh3 65.Ne1 g3 66.Nd3 Kh4 67.Kg2 Kg4 68.Ne1 Kf4 )
49.Nb4 h3+ 50.Kxh3 Kxf3 51.Kh4 Kf4 52.Nd5+ Kxe4 53.Ne7 $201 Kf3 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.27 / -0.05}
( 53...Ke3 54.Nxg6 e4 55.Ne7 Nc4 56.Kg3 Nb6 57.Nf5+ Kd3 58.Kf2 Na4 59.Kg3 Nc3 60.a3 Na4 61.Kf2 Kd2 62.Ne3 Nc5 63.Nf1+ Kd3 64.Ne3 Ne6 65.Ng4 Nf4 66.Ne5+ Kd4 67.Nc6+ Kd5 $10 )
54.Nxg6 e4 55.Ne5+ Kf4 56.Ng4 Na4
( 56...Na4 { 20:-0.01} 57.Nf6 Kf3 58.Nxe4 Kxe4 59.Kg3 Kd4 60.Kg2 Nb2 61.Kh3 Ke3 62.Kg4 Kd3 63.Kg5 Kc4 64.Kf6 Kc5 65.Kf7 Nc4 66.Kg6 Kb4 67.Kf5 Na3 68.Ke4 Nc4 69.Kf5 )
*

So, W (2656) - Giri, A (2588) [C42] Corus B (11), 29.01.2010

[Event "Corus B"]
[Site "Wijk aan Zee"]
[Date "29.01.2010"]
[Round "11"]
[White "So, W (2656)"]
[Black "Giri, A (2588)"]
[Result "0-1"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.O-O Be7 8.Re1 Bg4 9.c3 f5 10.Qb3 O-O
{ Last book move}
11.Nbd2 Na5 12.Qc2 Nc6 13.b4 a6 14.a4 Bd6 15.Ba3 Kh8 $201 16.Qb2 $10 $201
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.09 / -0.12}
( 16.h3 Bxf3 17.Nxf3 Qf6 18.Qb3 Rae8 19.Bc1 Re7 20.Re2 h6 21.Bb2 Qe6 22.Rae1 Rfe8 23.Bc1 a5 24.Bxe4 fxe4 $10 )
16...Ne7 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.12 / +0.20}
( 16...Qe7 17.Qb3 Qe6 18.Qb2 Ne7 19.b5 axb5 20.Bxd6 Qxd6 21.axb5 Ng6 22.g3 Rfe8 23.Rxa8 Rxa8 24.Ra1 Rxa1+ 25.Qxa1 Kg8 $10 )
17.Ne5 Bxe5 18.dxe5 Ng6 19.f3 $201 Nxe5 $6 $14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score
change from/to: +0.00 / +0.59}
( 19...Qg5 20.fxe4 Nf4 21.Bf1 Nh3+ 22.Kh1 Nf2+ 23.Kg1 Nh3+ $10 )
20.Bf1 $201 Qf6 $14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.57 / +0.78}
( 20...Nxd2 21.Qxd2 Nxf3+ 22.gxf3 Bxf3 23.b5 Rf7 24.bxa6 bxa6 25.Qf4 Be4 26.Bc5 Qd7 27.Bd4 Qc6 28.Re3 Re8 29.Rg3 Kg8 30.Re1 g6 31.a5 Rfe7 32.Qh6 Rb8 33.Be2 $14 )
21.fxe4 fxe4 $201 22.Kh1 $6 $10 $201
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.83 / +0.00}
( 22.Nb3 Nd3 23.Bxd3 exd3 24.Qd2 Be2 25.b5 Rfe8 26.Bc5 axb5 27.axb5 Rxa1 28.Rxa1 b6 29.Bd4 Qf5 30.Qe3 Qf7 31.Qg3 Kg8 32.Nd2 $14 )
22...b5 $6 $14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.00 / +0.71}
( 22...Qh6 23.c4 e3 24.Ne4 Nf3 25.gxf3 Bxf3+ 26.Bg2 dxe4 27.Qe5 Bxg2+ 28.Kxg2 Rf2+ 29.Kh1 Raf8 30.Bb2 c5 31.bxc5 R8f4 32.Qe8+ Rf8 33.Qe5 $10
)
23.Nb3 Qh4 $201 24.Qd2 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.59 / +0.13}
( 24.Kg1 Rf6 25.Nd4 Bd7 26.axb5 axb5 27.Qc2 c6 28.Bb2 Raf8 29.g3 Qh5 30.Be2 Bg4 31.Rf1 Bxe2 32.Rxf6 Rxf6 33.Qxe2 $14 )
24...Rf5 $201 25.Nd4 $10 $201
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.13 / -0.23}
( 25.g3 Qf6 26.Bg2 bxa4 27.Nc5 Rd8 28.Kg1 Bh3 29.Bh1 Nf3+ 30.Bxf3 exf3 31.Nd3 d4 32.c4 Rg5 33.Qf2 $10 )
25...Rh5 $6 $14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.23 / +0.68}
( 25...Rf2 26.Qe3 Bf3 27.Nf5 Bxg2+ 28.Bxg2 Rxf5 29.Qh3 Qg5 30.Bc1 Qg6 31.axb5 Nd3 32.Qe3 Rff8 33.Rf1 axb5 34.Rxa8 Rxa8 35.Bd2 Qd6 36.Bh3 Ra2 37.Qg5 h6 $10 )
26.h3 $201 Rf8 $6 $14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.18 / +1.01}
( 26...Nd3 27.Re3 Nf2+ 28.Kh2 Bd7 29.axb5 axb5 30.Rg3 Ng4+ 31.Rxg4 Qxg4 32.Nxb5 Bxb5 33.Bxb5 Qe6 34.Qf4 c6 35.Be2 Rf5 36.Qc7 Rf2 37.Bg4 Qf6 $10 )
27.Re3 Rf2 28.Qe1 $201 Qf6 $2 $18
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.60 / +3.56}
( 28...Rh6 29.Kg1 Rhf6 30.hxg4 Qxg4 31.axb5 axb5 32.Rh3 Rxf1+ 33.Qxf1 Rxf1+ 34.Rxf1 h6 35.Bc1 Qd7 36.Rg3 c6 37.Nf5 Nf3+ 38.gxf3 Qxf5 39.fxe4 Qxe4 40.Rf8+ Kh7 41.Be3 g5 42.Rgf3 Kg6 43.R3f6+ Kh5 $14 )
29.Kg1 Rf4 $201 30.hxg4 $6 $16
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +3.86 / +2.66}
( 30.axb5 axb5 31.Bc1 Qf8 32.Bxb5 Bc8 33.Rg3 Rf7 34.Be2 Rhf5 35.Nxf5 Bxf5 36.Be3 Nd3 37.Qd2 Qb8 38.Bxd3 exd3 39.Rf3 $18 )
30...Nxg4 31.Rh3 Rxh3 32.gxh3 Nf2 33.Qe3 Qg5+ 34.Bg2 Nd1 $201 35.Qc1 $2
$14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +3.51 / +0.72}
( 35.Qe2 Nf2 36.Bc1 Nxh3+ 37.Kh2 Qh4 38.Be3 Ng5+ 39.Kg1 Qg3 40.Bxf4 Nh3+ 41.Kf1 Nxf4 42.Qd2 Nxg2 43.Qxg2 Qxc3 44.Nc2 Qd3+ 45.Qe2 Qh3+ 46.Kg1 h5 47.axb5 axb5 48.Qxb5 Qg4+ 49.Kf2 Qf5+ 50.Ke1 Qe5 51.Qc5 Kh7 52.Qd4 Qg3+ 53.Kd2 Qg2+ 54.Kc3 $18 )
35...Qg3 $201 36.Ne2 $4 $19
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +1.05 / -327.00}
( 36.Qxd1 Rf2 37.Qf1 Rxf1+ 38.Rxf1 h6 39.Bb2 bxa4 40.c4 Qe3+ 41.Kh1 Qd3 42.cxd5 a3 43.Ba1 e3 44.Ne2 a2 45.Bf3 Qf5 46.Kg2 Kg8 47.Ng3 Qb1 48.Be2 Qxb4 49.Kf3 Qc5 50.Nf5 c6 51.Nxe3 cxd5 52.Bxa6 $14 )
36...Rf1+
( 36...Rf1+ { 34:-327.00} 37.Kxf1 Qf2# )
*

Friday, January 29, 2010

Carlsen - Dominguez [D97] Corus A, 29.01.2010

[Event "Corus A"]
[Site "Wijk aan Zee"]
[Date "29.01.2010"]
[Round "11"]
[White "Carlsen (2810)"]
[Black "Dominguez (2712)"]
[Result "1-0"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.e5 b5
9.Qb3 Nfd7 $201 10.Ng5 $6 $10
{ Move out of book ( h4 36% e6 32% Be3 31%) RobboLito reports
score change from/to: +0.45 / -0.06}
( 10.a4 c5 11.e6 fxe6 12.Qxe6+ Kh8 13.Qe4 cxd4 14.Nxb5 Rxf3 15.Qxf3
Nb6 16.Na3 N8d7 17.Nc4 Rb8 18.Qg3 Nxc4 19.Bxc4 Qa5+ 20.Bd2 Qf5 21.b3
Qe4+ 22.Kf1 Qc2 23.Qf4 Ne5 24.Rc1 $10 )
10...Nb6 11.Be3 Nc6 12.Rd1 $201 Bf5 $10 $201
{ RobboLito reports score change from/to: +0.04 / +0.36}
( 12...Bg4 13.Be2 Na5 14.Qc2 Bf5 15.Bd3 Bxd3 16.Rxd3 b4 17.Ne2 Qd5 18.
Nf4 Qc4 19.Qd2 Qxa2 20.Qxb4 h6 21.Ne4 Qb1+ 22.Rd1 Qxe4 23.Qxa5 $10 )
13.Be2 $10
{ RobboLito reports score change from/to: +0.36 / +0.06}
( 13.e6 f6 14.Nf7 Qc8 15.d5 Nc4 16.Be2 N4a5 17.Qa3 b4 18.Qa4 bxc3 19.
bxc3 Rb8 20.dxc6 Qxe6 21.Qxa5 Qxf7 22.Qxa6 e5 23.O-O Ra8 24.Ba7 Rfd8
25.Qb7 Bf8 26.a4 $10 )
13...Na5 14.Qb4 Nac4 15.O-O f6 16.Nf3 Nxe3 17.fxe3 $201 fxe5 $14
{ RobboLito reports score change from/to: +0.13 / +0.50}
( 17...Qd7 18.Kh1 c6 19.e4 Be6 20.Qc5 Qb7 21.exf6 exf6 22.e5 Nc4 23.
Bxc4 Bxc4 24.Rfe1 Qd7 25.d5 Rac8 $10 )
18.dxe5 Qe8 19.Qc5 Rc8 $201 20.a4 $10 $201
{ RobboLito reports score change from/to: +0.62 / +0.25}
( 20.Nd4 Nd7 21.Qa3 Bxe5 22.Qxa6 Bxd4 23.exd4 c6 24.d5 Nc5 25.Qb6 Nd7
26.Qa5 Nf6 27.dxc6 Qxc6 28.Qxb5 Qe6 29.Kh1 Kg7 30.Bf3 Rcd8 31.Qc5 $14
)
20...Nxa4 $14
{ RobboLito reports score change from/to: +0.25 / +0.62}
( 20...Bc2 21.a5 Bxd1 22.Rxd1 Nc4 23.Bxc4+ bxc4 24.Qxc4+ e6 25.b3 Rb8
26.Ne2 Qb5 27.Qxe6+ Kh8 28.Ned4 Qxa5 29.Nc6 Qb6 30.Nfd4 Rbe8 31.Qd5
Bh6 32.Rd3 Bg7 33.Ne6 $10 )
21.Nxa4 bxa4 22.Nd4 Rb8 $201 23.g4 $10
{ RobboLito reports score change from/to: +0.29 / +0.07}
( 23.Rd2 Bh6 24.Nxf5 Rxf5 25.Rxf5 gxf5 26.Bxa6 e6 27.Bc4 Rb6 28.Qd4
Qe7 29.Rd3 c5 30.Qd8+ Qxd8 31.Rxd8+ Kg7 32.Rd7+ Kg6 $10 )
23...Be4 24.Ne6 Rxf1+ 25.Bxf1 c6 26.Ng5 Bd5 27.e4 Bb3 28.Bc4+ e6 29.Nxe6
Bxc4 30.Qxc4 $201 Kh8 $2 $16
{ RobboLito reports score change from/to: -0.14 / +2.81}
( 30...Bxe5 31.Ng5+ Kh8 32.Nf7+ Kg7 33.Nxe5 Qxe5 34.Qxc6 Kh6 35.Rd3
Qxb2 36.Rh3+ Kg7 37.Qc7+ Kf8 38.Rf3+ Kg8 39.Qc4+ Kh8 40.Qxa4 Rd8 41.
Rf2 Qd4 42.Qxd4+ Rxd4 43.Re2 a5 44.Kf2 Kg7 45.Ke3 $10 )
31.Nxg7 Kxg7 32.e6 Rb7 33.Qc3+ Kg8 34.Rd6 $201 Re7 $16
{ RobboLito reports score change from/to: +1.33 / +1.66}
( 34...a3 35.Qxa3 Qf8 36.Qd3 Rb8 37.b3 Qf4 38.Rd8+ Rxd8 39.Qxd8+ Kg7
40.Qd7+ Kg8 41.e7 Qe3+ 42.Kf1 Qf3+ 43.Ke1 Qe3+ 44.Kd1 Qxb3+ 45.Ke2
Qb2+ 46.Kf3 Qf6+ 47.Kg2 Qb2+ 48.Kg3 Qe5+ 49.Kh3 Qc3+ 50.Kh4 Qf6+ 51.g5
Qf4+ 52.Kh3 $14 )
35.Rxc6 Qf8 $201 36.Rc8 $14
{ RobboLito reports score change from/to: +1.69 / +1.44}
( 36.Qd4 h5 37.g5 Kh7 38.Qd6 Qg7 39.Rc2 a5 40.Rf2 Rb7 41.e5 a3 42.bxa3
Rb1+ 43.Kg2 Qb7+ 44.Rf3 Rb2+ 45.Kg3 h4+ 46.Kf4 $16 )
36...Re8 37.Rxe8 Qxe8 38.Qf6 $201 Qc8 $4 $18 $201
{ RobboLito reports score change from/to: +1.68 / +12.67}
( 38...Qf8 39.e5 Qb4 40.Qf7+ Kh8 41.e7 Qd4+ 42.Kg2 Qxb2+ 43.Kf3 Qc3+
44.Ke4 Qc2+ 45.Kd4 Qb2+ 46.Kd3 Qb5+ 47.Kc2 Qc5+ 48.Kb2 a3+ 49.Ka2 Qc2+
50.Kxa3 Qc5+ 51.Kb2 Qb4+ 52.Kc2 Qa4+ 53.Kc3 Qa5+ 54.Kd4 Qb4+ 55.Kd3
Qb5+ 56.Ke3 Qxe5+ 57.Kf3 $16 )
39.Kg2 $4 $16 $201
{ RobboLito reports score change from/to: +12.67 / +2.45}
( 39.Qf7+ Kh8 40.e7 Qxg4+ 41.Kf2 Qh4+ 42.Kf1 Qh3+ 43.Ke1 Qe3+ 44.Kd1
Qd4+ 45.Kc1 Qe3+ 46.Kb1 Qxe4+ 47.Ka2 h6 48.e8=Q+ Qxe8 49.Qxe8+ Kg7 50.
Qxa4 a5 51.Qxa5 Kf6 52.b4 Ke6 53.b5 Kd5 54.Qc3 Ke6 55.Kb3 g5 56.Qc6+
Ke5 57.Qxh6 $18 )
39...Qc2+ $4 $18
{ RobboLito reports score change from/to: +2.45 / +8.21}
( 39...Qf8 40.g5 Qe8 41.h3 a5 42.e7 Qc8 43.Kg3 Qb8+ 44.Kg4 Qc8+ 45.Kh4
Qe8 46.Qe6+ Kg7 47.Kg4 h5+ 48.gxh6+ Kxh6 49.Qf6 Qd7+ 50.Kg3 $16 )
40.Kh3 $201 Qc5 $201 $4 $18 $201
{ RobboLito reports score change from/to: +2.71 / +15.81}
( )
41.Kh4 $4 $16 $4 $18 $201
{ RobboLito reports score change from/to: +15.51 / +2.71
RobboLito reports score change from/to: +15.81 / +5.47}
( 41.Qf7+ Kh8 42.Kh4 h6 43.e7 Qg5+ 44.Kg3 Qe3+ 45.Qf3 Qxf3+ 46.Kxf3
Kh7 47.e8=Q Kg7 48.Qxa4 h5 49.gxh5 gxh5 50.Qxa6 Kf8 51.b4 Kf7 52.Qc4+
Kf6 53.b5 Ke5 54.Qd5+ Kf6 55.b6 Ke7 56.Qxh5 Kd7 57.b7 $18 )
( 41.Qf7+ Kh8 42.Kh4 h6 43.e7 Qg5+ 44.Kg3 Qe3+ 45.Qf3 Qxf3+ 46.Kxf3
Kh7 47.e8=Q Kg7 48.Qxa4 h5 49.gxh5 Kh6 50.hxg6 Kxg6 51.Qxa6+ Kf7 52.h4
Kg7 53.h5 Kg8 54.Qg6+ Kh8 55.e5 $18 )
41...Qb4 $4 $18
{ RobboLito reports score change from/to: +5.47 / +24.86}
( 41...Qf8 42.Qxf8+ Kxf8 43.e7+ Kxe7 44.Kg5 Ke6 45.Kh6 Ke5 46.Kxh7 g5
47.Kg6 Kf4 48.e5 Kxe5 49.Kxg5 Ke6 50.h4 Ke7 51.h5 Ke8 52.Kg6 Kf8 53.h6
Kg8 54.g5 a5 55.h7+ Kh8 56.Kf7 a3 57.bxa3 $18 )
42.Qf7+ Kh8 43.e7 Qe1+ 44.Kg5 Qe3+ 45.Qf4 1-0
( 45.Qf4 { 21:+327.00} 45...Qxf4+ 46.Kxf4 Kg7 47.e8=Q Kf6 48.e5+ Kg7
49.Qe7+ Kg8 50.Kg5 a3 51.Kf6 axb2 52.Qg7# )

Tuesday, January 19, 2010

Re e due Cavalli contro Re e Pedone

FINALI DI SCACCHI

Re e due Cavalli contro Re e Pedone


FEN:8/7k/4NK2/8/4p3/4N3/8/8 w - - 10 6
















1.Rg5 Rh7 2.Cdf5 Rg8 3.Rf6 Rf8 4.Cg7 Rg8 5.Ce6 Rh7 6.Cf5!

(6.Rg5 Rg8 7.Rg6 Rh8 8.Cf5 Rg8 9.Ch6 Rh8 10.Cg5 e3 11.Cgf7#)

(6... Rh8 7.Rg6 Rg8 8.Cf5 Rh8 9.Ce7 e3 10.Cg5 e2 11.Cf7#)

e3 7.Rf7 e2 8.Cg5 Rh8 9.Ce7 e1=D 10.Cg6#



FEN: 7k/5K2/8/5N2/p7/N7/8/8 w - - 0 1

1.Cc4 a3 2.Ce5 Rh7

(2...a2 3.Cg6 Rh7 4.Cf8 Rh8 5.Ce7 a1=D 6.Ceg6#)

3.Cg6 a2 4.Cf8 Rh8 5.Ce7 a1=D 6.Ceg6#


Se muove prima il N :

FEN: 7k/5K2/8/5N2/p7/N7/8/8 b - - 0 1

1... Rh7 2.Rf6 Rh8!

(2...Rg8 3.Re7 Rh7 4.Rf7 Rh8 5.Cc4 Rh7 6.Ce5 a3 7.Cg6 a2 8.Cf8 Rh8 9.Ce7 a1=D 10.Ceg6#)

3.Re6 ! Rg8 !

(3... Rh7 4.Rf7 Rh8 5.Cc4 Rh7 6.Ce5 a3 7.Cg6 a2 8.Cf8 Rh8 9.Ce7 a1=D 10.Ceg6#)

4.Re7 Rh8 5.Rf8 Rh7 6.Rf7 Rh8 7.Cc4 Rh7 8.Ce5 a3 9.Cg6 a2 10.Cf8 Rh8 11.Ce7 a1=D 12.Ceg6#



FEN: 8/8/8/8/3N4/pK6/N7/1k6 w - - 0 1

1.Cc6 Ra1 2.Rc2 Ra2 3.Cb4 Ra1 4.Rc1 a2 5.Cc2#



FEN: 8/8/8/5K2/7k/7p/7N/7N w - - 0 1


1.Cf2 Rg3 (1... Rh5) 2.Cfg4 Rh4 3.Rg6 Rg3 4.Rg5 Rg2 5.Rf4 Rh1 6.Rf3 Rg1 7.Rg3 Rh1 8.Cf3 h2 9.Cf2#



FEN: 1k6/8/3K1N2/8/8/2p5/2N5/8 w - - 0 1


1.Cd5 Rc8 2.Re7 ! Rb8 3.Rd8 Rb7 4.Rd7 Ra7 5.Rc7 Ra6 6.Rc6 Ra7 7.Ce7 Ra6 8.Cc8 Ra5 9.Cb6! Ra6 10.Cc4 Ra7 11.Cd6 Ra6 12.Cb7 Ra7 13.Cc5 Rb8 14.Rd7 Ra7 15.Rc7 Ra8 16.Rb6 Rb8 17.Cb7! Rc8 18.Rc6 Rb8 19.Cd6 Ra7 20.Rb5 Rb8 21.Rb6 Ra8 22.Rc7 !

(22.Cc8 Rb8 23.Cd6 Ra8 24.Rc7 Ra7 25.Cb4 Ra8 26.Cc6 c2 27.Cc8 c1=D 28.Cb6#)

Ra7 23.Cb4 Ra8 24.Cc6 c2 25.Cc8 c1=D 26.Cb6#



FEN: 8/8/8/8/5Np1/6K1/8/5N1k w - - 0 1


1.Ch3! gh3 2.Rf2 h2 3.Cg3#

Sunday, January 3, 2010

RobboLito 0.085g3

RobboLito



RobboLito is an extremely strong open-source UCI chess engine by:
Yakov Petrovich Golyadkin, Igor Igorovich Igoronov, and Roberto Pescatore

description:
RobboLito is a UCI windows 'console' application, meaning that it has no GUI (graphical user interface). there are several free programs that provide a GUI, along with a rich set of user-friendly features. three of the most popular free GUIs are: winboard, chess-gui, and arena

note:
RobboLito does not yet support:
multiPV
own book
egbbs
tablebases
multiple CPUs/cores
chess variants

rating:
~ 3300 ELO

downloads
:
RobboLito 0.085g3 w32

(optimized windows 32-bit executable and source code)

RobboLito_0.085g3_w32_no_SSE2
(optimized windows 32-bit executable - for older CPUs that don't support Intel SSE2 instruction set)

RobboLito 0.085g3_x64
(fast windows 64-bit PGO executable
compiled by peterpan)

RobboLito 0.085g3l_x86
(optimized linux 64-bit executable and source code
ported to linux by
unisky)

RobboLito
has been completely translated from Italo-Albanian to English, and it does not include any of RobboLito's original tablebase code (v. 0.084). these tablebases are not needed, as RobboLito demonstrates extremely strong endgame play without them. the engine recognizes many draws and solves endgame positions that even Rybka 3 and other commercial programs miss.



RobboLito UCI Options:

MPH (Move on Ponderhit) -> Never, Sometimes, Always ...if predicted move is played by opponent, make move
default = 'Sometimes'...if move = EASY (i.e. when it's a no brainer!)
RobboLito is not a 'clone' of Rybka 3, as some may like you think...it's very different.

please click here for a detailed comparision
detailed history/major changes:

RobboLito 0.085g3
bishop/knight evaluation fix
ponder bug fixed
time management changes
BTF removed
code cleanup
code translation

RobboLito 0.085e4
TM reduced to OTM
OTF -> BTF (Blitz Time Factor)
exponential scale-factor replaces less efficient blitz if/else clause from e1

RobboLito 0.085e3
MOPH 'sometimes' bug fix

RobboLito 0.085e2
32-bit executable optimization
SSE2 enabled, floating point model -> fast
speed increase +10%
default time management improved
OTF default = 22

RobboLito 0.085e1
UCI Ponderhit Move -> Move on Ponderhit
is now combo box: Never, Sometimes, Always
Sometimes = default (if move is EASY, i.e. a recapture, etc.)
no longer loses lightning/blitz no increment games