Re: Isle of Man International 2017
Isle of Man International 2017
September 28, 2017
Round Six
ChessBase has an interesting article on verifying that Hou Yifan’s pairings in this tournament are correct. The conclusion:
The first thing we did was to consult the arbiters on-site, directly. It wasn't a matter of suggesting foul play, but to know whether it might not be some software issues, that took into account the presence of female players or any other specific group, biasing the pairings in some remote way.
Chief Arbiter IA Peter Purland answered promptly, showing in his reply just how seriously they took the matter of pairings in general:
I can confirm we are using Swiss Manager version 12.0.0.171 (21 June 2017) and Swiss Master version 5.6 (build 12). These programmes do not use the same pairing programme.
Our procedures are that I input results and make pairings with Swiss Manager, Deputy Chief Arbiter IA Arno Eliens does this in Swiss Master independently. Then we compare full pairings of both programmes and only if these are exactly the same do we publish the pairings.
Kind regards,
Isle of Man International Chess Tournament
Chief Arbiter IA Peter Purland
Was it possible that some form of manual intervention had been done at some level? What about genders? It is, after all, a data field used in such pairings programs, perhaps that had been used in the computer's algorithms? Once again, our questions were answered clearly and promptly (emphasis added):
Gender is a field in players' data — as it is in FIDE data. However, it is not used in the pairing algorithm for computer pairings. We do not use the manual pairings option (except for the first round to insert the random pairings made).
For further specifics of the software used, we would like to refer you to the programmers.
Indeed, in the interest of due diligence, we did consult the programmers, asking them to look at the pairings, and tell us with certainty whether they were the result of pure, unfettered software pairings, with no outside input. Heinz Herzog is the author of Swiss Manager, the most widely used, and progenitor of Chess-Results.
I checked the first 6 rounds of the Masters Open. I can confirm, that the pairings was done without manual intervention.
Best regards,
Heinz Herzog - Swiss Manager
These findings have been passed on to Yifan, who was forced to wonder what bizarre twist of fate had made her victim to such an incredible series of coincidences. Nevertheless, she was reassured, as were we all, that everything was in order. Having received a half point in her 5th round bye, Hou Yifan is paired in round six against GM Panchanathan Magesh Chandran...a man!
http://en.chessbase.com/post/hou-yif...-investigation
_______
Mike Klein at chess.com
After six rounds, Magnus is clear of the field on 5.5/6.
Today Carlsen played his third "creative" opening as Black, this time 1...b6, then slowly took over the initiative and the point.
"I try to do some things that I might not allow myself to do in other events," Carlsen told Chess.com. In his other two games as Black, he's used the Tiger Modern and the Nimzowitsch Defense. Carlsen is 3-0 in his Black games.
That's half as impressive as his career record against Eljanov. Carlsen moved to six wins in as many games against the Ukrainian. He guessed that part of the reason he scored today as Black was that Eljanov never settles as White, no matter who he is playing.
"He's usually quite ambitious with the white pieces," Carlsen said. "He doesn't play for a draw and maybe that's why I have such a big record against him."
https://www.chess.com/news/view/carl...akes-sole-lead
_________
Further Round Six Games
Round 6, Sept. 28, 2017
Gelfand, Boris (2737) – Zatonskih, Anna (2424)
D36 QGD, Exchange, Modern line
1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 c6 8.Nge2 O-O 9.Qc2 Re8 10.O-O Nf8 11.f3 g6 12.Kh1 Ne6 13.Bh4 b6 14.Rad1 a5 15.Qc1 Ba6 16.Bxa6 Rxa6 17.e4 Nh5 18.Bxe7 Rxe7 19.exd5 cxd5 20.Nxd5 Rd7 21.Ndc3 Nf6 22.Ne4 Nd5 23.N2c3 Ra8 24.Nb5 Rc8 25.Qd2 Rc4 26.a3 Rc8 27.f4 f5 28.Nec3 Kf7 29.Rf3 Qf6 30.g3 Rcd8 31.Qe2 Kg7 32.Qc4 g5 33.Nxd5 Rxd5 34.fxg5 Nxg5 35.Rf2 Rc5 36.Qe2 Qc6+ 37.Rg2 Rxb5 0-1
Round 6, Sept. 28, 2017
Hou Yifan – Panchanathan Magesh
C87 Ruy Lopez, Closed, Auerbach variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.c3 O-O 8.h3 Bd7 9.d4 Re8 10.Nbd2 Bf8 11.Bc2 g6 12.Nf1 Bg7 13.Ng3 a5 14.Bg5 a4 15.Bxa4 exd4 16.Bxc6 bxc6 17.cxd4 Qb8 18.Qd2 Be6 19.b3 Ra6 20.Rad1 d5 21.e5 Nd7 22.Bh6 Qd8 23.Bxg7 Kxg7 24.Rc1 Qe7 25.Re3 Rea8 26.Rc2 Nf8 27.Ne1 h5 28.f4 h4 29.f5 gxf5 30.Nh5+ Kg6 31.Nf6 Nh7 32.Qf2 Nxf6 33.Qxh4 f4 34.Nd3 fxe3 35.Nf4+ Kf5 36.exf6 Rh8 37.Nh5 Rxh5 38.Qxh5+ 1-0
Round 6, Sept. 28, 2017
Tarjan, James – Tregubov, Pavel
A29 English, Bremen
1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bc5 5.Bg2 d6 6.O-O h6 7.e3 O-O 8.d4 Bb6 9.h3 a5 10.b3 Re8 11.Bb2 exd4 12.Nxd4 Bxd4 13.exd4 Bf5 14.g4 Bd7 15.f4 Nh7 16.Nd5 Rb8 17.Qd2 b6 18.f5 Ne7 19.Nf4 Nc6 20.Nh5 Qh4 21.f6 Ng5 22.fxg7 Nxh3+ 23.Bxh3 Qxh3 24.Qf4 Qxg4+ 25.Qxg4 Bxg4 26.Nf6+ Kxg7 27.Nxg4 Re4 28.Nf6 Re2 29.Nh5+ Kf8 30.Rf2 Rbe8 31.Raf1 Rxf2 32.Rxf2 Re1+ 33.Kg2 Rd1 34.Nf4 Ke8 35.Nd5 Kd8 36.Ne3 Re1 37.Kf3 Ne7 38.Rh2 Kd7 39.d5 Rb1 40.Bf6 Ng8 41.Bd4 a4 42.bxa4 Rb4 43.a5 bxa5 44.Ke4 a4 45.Kd3 Rb1 46.Kc3 a3 47.Nc2 Rb2 48.Rf2 Ne7 49.Nxa3 Rxf2 50.Bxf2 h5 51.Kd4 h4 52.Ke4 h3 53.Kf3 c6 54.Bh4 Nf5 55.Bg3 cxd5 56.cxd5 Ne7 57.Ke4 f5+ 58.Kd4 Ng6 59.Nc2 f4 60.Bh2 Ne5 61.Bxf4 h2 62.Bxh2 Nf3+ 63.Ke4 Nxh2 64.Ne3 1-0
- GM Tarjan, the guy who upset Kramnik in round 3, collected another Russian GM scalp today. His victim this time was GM Pavel Tregubov (2589). Not quite as impressive as Kramnik, of course, but James was still almost a 200-point underdog. Again it was an English opening, but this time Tarjan looked in control the entire game
Round 6, Sept. 28, 2017
Kosteniuk, Alexandra – Trent, Lawrence
C11 French, Steinitz, Boleslavsky variation
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 a6 8.Qd2 Be7 9.Bd3 b5 10.a3 Bb7 11.O-O Qb6 12.dxc5 Bxc5 13.Bxc5 Nxc5 14.Qf2 Na4 15.Nxa4 Qxf2+ 16.Rxf2 bxa4 17.c3 Ne7 18.Rb1 O-O 19.Bc2 Bc6 20.Rd2 Bb5 21.Nd4 Bd7 22.Rf1 Rab8 23.Rff2 Rb6 24.Kf1 f6 25.Ke1 g6 26.Bb1 Kg7 27.Kd1 Ng8 28.Kc1 fxe5 29.fxe5 Rxf2 30.Rxf2 Nh6 31.Rf4 g5 32.Rf6 Ng8 33.Nf5+ Kh8 34.Rf7 exf5 35.Rxd7 Nh6 36.Rxd5 Kg7 37.Rd7+ Kg6 38.Ba2 Ng4 39.Bf7+ Kh6 40.Rd6+ Rxd6 41.exd6 Ne5 42.Be6 Kg6 43.d7 Nc6 44.Bd5 Nd8 45.c4 1-0
Round 6, Sept. 28, 2017
Piasetski, Leon – Mai, Aron Thor
A07 Reti, King’s Indian Attack
1.Nf3 d5 2.g3 Bg4 3.Bg2 c6 4.h3 Bxf3 5.Bxf3 e5 6.d3 Bd6 7.e4 d4 8.Nd2 Ne7 9.c3 Na6 10.cxd4 exd4 11.O-O Ng6 12.Nc4 Bc7 13.a4 O-O 14.Bg2 Nb4 15.Qb3 a5 16.Bd2 Qe7 17.f4 Rfe8 18.h4 Nf8 19.Bh3 h5 20.Kg2 Ra7 21.Rf2 Na6 22.Re1 Nc5 23.Qc2 b5 24.axb5 cxb5 25.Na3 Rb8 26.Rc1 Na4 27.Nxb5 Rxb5 28.Qxa4 Rxb2 29.Qxd4 Rbb7 30.Bc3 f6 31.Rb2 Rxb2+ 32.Bxb2 Bd8 33.Qd5+ Qf7 34.Qxd8 Kh7 35.Qd5 Qe8 36.Rc8 Qe7 37.Rxf8 Qxf8 38.Qxh5+ Kg8 39.Be6+ 1-0
Isle of Man International 2017
September 28, 2017
Round Six
ChessBase has an interesting article on verifying that Hou Yifan’s pairings in this tournament are correct. The conclusion:
The first thing we did was to consult the arbiters on-site, directly. It wasn't a matter of suggesting foul play, but to know whether it might not be some software issues, that took into account the presence of female players or any other specific group, biasing the pairings in some remote way.
Chief Arbiter IA Peter Purland answered promptly, showing in his reply just how seriously they took the matter of pairings in general:
I can confirm we are using Swiss Manager version 12.0.0.171 (21 June 2017) and Swiss Master version 5.6 (build 12). These programmes do not use the same pairing programme.
Our procedures are that I input results and make pairings with Swiss Manager, Deputy Chief Arbiter IA Arno Eliens does this in Swiss Master independently. Then we compare full pairings of both programmes and only if these are exactly the same do we publish the pairings.
Kind regards,
Isle of Man International Chess Tournament
Chief Arbiter IA Peter Purland
Was it possible that some form of manual intervention had been done at some level? What about genders? It is, after all, a data field used in such pairings programs, perhaps that had been used in the computer's algorithms? Once again, our questions were answered clearly and promptly (emphasis added):
Gender is a field in players' data — as it is in FIDE data. However, it is not used in the pairing algorithm for computer pairings. We do not use the manual pairings option (except for the first round to insert the random pairings made).
For further specifics of the software used, we would like to refer you to the programmers.
Indeed, in the interest of due diligence, we did consult the programmers, asking them to look at the pairings, and tell us with certainty whether they were the result of pure, unfettered software pairings, with no outside input. Heinz Herzog is the author of Swiss Manager, the most widely used, and progenitor of Chess-Results.
I checked the first 6 rounds of the Masters Open. I can confirm, that the pairings was done without manual intervention.
Best regards,
Heinz Herzog - Swiss Manager
These findings have been passed on to Yifan, who was forced to wonder what bizarre twist of fate had made her victim to such an incredible series of coincidences. Nevertheless, she was reassured, as were we all, that everything was in order. Having received a half point in her 5th round bye, Hou Yifan is paired in round six against GM Panchanathan Magesh Chandran...a man!
http://en.chessbase.com/post/hou-yif...-investigation
_______
Mike Klein at chess.com
After six rounds, Magnus is clear of the field on 5.5/6.
Today Carlsen played his third "creative" opening as Black, this time 1...b6, then slowly took over the initiative and the point.
"I try to do some things that I might not allow myself to do in other events," Carlsen told Chess.com. In his other two games as Black, he's used the Tiger Modern and the Nimzowitsch Defense. Carlsen is 3-0 in his Black games.
That's half as impressive as his career record against Eljanov. Carlsen moved to six wins in as many games against the Ukrainian. He guessed that part of the reason he scored today as Black was that Eljanov never settles as White, no matter who he is playing.
"He's usually quite ambitious with the white pieces," Carlsen said. "He doesn't play for a draw and maybe that's why I have such a big record against him."
https://www.chess.com/news/view/carl...akes-sole-lead
_________
Further Round Six Games
Round 6, Sept. 28, 2017
Gelfand, Boris (2737) – Zatonskih, Anna (2424)
D36 QGD, Exchange, Modern line
1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 c6 8.Nge2 O-O 9.Qc2 Re8 10.O-O Nf8 11.f3 g6 12.Kh1 Ne6 13.Bh4 b6 14.Rad1 a5 15.Qc1 Ba6 16.Bxa6 Rxa6 17.e4 Nh5 18.Bxe7 Rxe7 19.exd5 cxd5 20.Nxd5 Rd7 21.Ndc3 Nf6 22.Ne4 Nd5 23.N2c3 Ra8 24.Nb5 Rc8 25.Qd2 Rc4 26.a3 Rc8 27.f4 f5 28.Nec3 Kf7 29.Rf3 Qf6 30.g3 Rcd8 31.Qe2 Kg7 32.Qc4 g5 33.Nxd5 Rxd5 34.fxg5 Nxg5 35.Rf2 Rc5 36.Qe2 Qc6+ 37.Rg2 Rxb5 0-1
Round 6, Sept. 28, 2017
Hou Yifan – Panchanathan Magesh
C87 Ruy Lopez, Closed, Auerbach variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.c3 O-O 8.h3 Bd7 9.d4 Re8 10.Nbd2 Bf8 11.Bc2 g6 12.Nf1 Bg7 13.Ng3 a5 14.Bg5 a4 15.Bxa4 exd4 16.Bxc6 bxc6 17.cxd4 Qb8 18.Qd2 Be6 19.b3 Ra6 20.Rad1 d5 21.e5 Nd7 22.Bh6 Qd8 23.Bxg7 Kxg7 24.Rc1 Qe7 25.Re3 Rea8 26.Rc2 Nf8 27.Ne1 h5 28.f4 h4 29.f5 gxf5 30.Nh5+ Kg6 31.Nf6 Nh7 32.Qf2 Nxf6 33.Qxh4 f4 34.Nd3 fxe3 35.Nf4+ Kf5 36.exf6 Rh8 37.Nh5 Rxh5 38.Qxh5+ 1-0
Round 6, Sept. 28, 2017
Tarjan, James – Tregubov, Pavel
A29 English, Bremen
1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bc5 5.Bg2 d6 6.O-O h6 7.e3 O-O 8.d4 Bb6 9.h3 a5 10.b3 Re8 11.Bb2 exd4 12.Nxd4 Bxd4 13.exd4 Bf5 14.g4 Bd7 15.f4 Nh7 16.Nd5 Rb8 17.Qd2 b6 18.f5 Ne7 19.Nf4 Nc6 20.Nh5 Qh4 21.f6 Ng5 22.fxg7 Nxh3+ 23.Bxh3 Qxh3 24.Qf4 Qxg4+ 25.Qxg4 Bxg4 26.Nf6+ Kxg7 27.Nxg4 Re4 28.Nf6 Re2 29.Nh5+ Kf8 30.Rf2 Rbe8 31.Raf1 Rxf2 32.Rxf2 Re1+ 33.Kg2 Rd1 34.Nf4 Ke8 35.Nd5 Kd8 36.Ne3 Re1 37.Kf3 Ne7 38.Rh2 Kd7 39.d5 Rb1 40.Bf6 Ng8 41.Bd4 a4 42.bxa4 Rb4 43.a5 bxa5 44.Ke4 a4 45.Kd3 Rb1 46.Kc3 a3 47.Nc2 Rb2 48.Rf2 Ne7 49.Nxa3 Rxf2 50.Bxf2 h5 51.Kd4 h4 52.Ke4 h3 53.Kf3 c6 54.Bh4 Nf5 55.Bg3 cxd5 56.cxd5 Ne7 57.Ke4 f5+ 58.Kd4 Ng6 59.Nc2 f4 60.Bh2 Ne5 61.Bxf4 h2 62.Bxh2 Nf3+ 63.Ke4 Nxh2 64.Ne3 1-0
- GM Tarjan, the guy who upset Kramnik in round 3, collected another Russian GM scalp today. His victim this time was GM Pavel Tregubov (2589). Not quite as impressive as Kramnik, of course, but James was still almost a 200-point underdog. Again it was an English opening, but this time Tarjan looked in control the entire game
Round 6, Sept. 28, 2017
Kosteniuk, Alexandra – Trent, Lawrence
C11 French, Steinitz, Boleslavsky variation
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 a6 8.Qd2 Be7 9.Bd3 b5 10.a3 Bb7 11.O-O Qb6 12.dxc5 Bxc5 13.Bxc5 Nxc5 14.Qf2 Na4 15.Nxa4 Qxf2+ 16.Rxf2 bxa4 17.c3 Ne7 18.Rb1 O-O 19.Bc2 Bc6 20.Rd2 Bb5 21.Nd4 Bd7 22.Rf1 Rab8 23.Rff2 Rb6 24.Kf1 f6 25.Ke1 g6 26.Bb1 Kg7 27.Kd1 Ng8 28.Kc1 fxe5 29.fxe5 Rxf2 30.Rxf2 Nh6 31.Rf4 g5 32.Rf6 Ng8 33.Nf5+ Kh8 34.Rf7 exf5 35.Rxd7 Nh6 36.Rxd5 Kg7 37.Rd7+ Kg6 38.Ba2 Ng4 39.Bf7+ Kh6 40.Rd6+ Rxd6 41.exd6 Ne5 42.Be6 Kg6 43.d7 Nc6 44.Bd5 Nd8 45.c4 1-0
Round 6, Sept. 28, 2017
Piasetski, Leon – Mai, Aron Thor
A07 Reti, King’s Indian Attack
1.Nf3 d5 2.g3 Bg4 3.Bg2 c6 4.h3 Bxf3 5.Bxf3 e5 6.d3 Bd6 7.e4 d4 8.Nd2 Ne7 9.c3 Na6 10.cxd4 exd4 11.O-O Ng6 12.Nc4 Bc7 13.a4 O-O 14.Bg2 Nb4 15.Qb3 a5 16.Bd2 Qe7 17.f4 Rfe8 18.h4 Nf8 19.Bh3 h5 20.Kg2 Ra7 21.Rf2 Na6 22.Re1 Nc5 23.Qc2 b5 24.axb5 cxb5 25.Na3 Rb8 26.Rc1 Na4 27.Nxb5 Rxb5 28.Qxa4 Rxb2 29.Qxd4 Rbb7 30.Bc3 f6 31.Rb2 Rxb2+ 32.Bxb2 Bd8 33.Qd5+ Qf7 34.Qxd8 Kh7 35.Qd5 Qe8 36.Rc8 Qe7 37.Rxf8 Qxf8 38.Qxh5+ Kg8 39.Be6+ 1-0
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