Archive for March, 2018

TCEC Superfinal Stockfish – Houdini starts at 17:30 CET

Thursday, March 29th, 2018
TCEC Superfinal poster by Santiago Mendez

TCEC Superfinal poster by Santiago Mendez

Stockfish, the open source engine by Marco Costalba, Joona Kiiski, Gary Linscott and a huge community of contributors, has convincingly won TCEC Premier Division. Stockfish collected 61,0/84 points to secure the gold medal and the right to challenge the current champion Houdini for the TCEC Grand Champion title.

The Superfinal match of the Top Chess Engine Championship starts this Thursday at 17:30 CET and you can follow the games live on the official site

The reigning champion Houdini by Robert Houdart finished clear second with 54,5/84. It had better performance than the winner against Komodo, but a higher draw rate against lower rated engines.

Both Houdini and Stockfish incurred only a one loss during the Premier division. Stockfish lost a game against the bronze medalist Komodo, while Houdini lost a direct match with Stockfish. Scroll down for the full standings.

More: Defenchess wins TCEC Division 4 / Fritz wins TCEC Division 3 / Jonny wins TCEC Division 2 / Andscacs wins TCEC Division 1 / Stockfish wins TCEC Premier Division / TCEC facebook page

The Superfinal details

The TCEC S11 Superfinal will be 100 games match aka x50 double round robin. This match is played with 50 different openings so that each engine plays both black and white of the same position. The match will be presented with opening 1 used in games 1 and 2, then opening 2 used in games 3 and 4 etc. If the match is theoretically won for one side before game 100, the match will still continue until all 100 games have been played. In the case of a drawn match there will be a rapid match of 16 games with a time control of 25′ + 10″ with random openings selected from earlier in the same Season. In case it is still tied there will be a Blitz match of 8 games with a time control of 3′ + 2″.

The winner of the Superfinal will be crowned the TCEC Grand Champion and will keep this title until there is a winner in the next Superfinal. There is no automatic qualification for the reigning Grand Champion, it will have to go all the way through the next Season for it to be able to defend the title.

Stockfish will have an updated dev version for the Superfinal. The team has added a few extra improvements and are coming in high spirits in a quest for the TCEC Grand Champion title, something that has not been in the hands of Stockfish since Season 9.

Robert Houdart from Houdini has not been able to release a new version for the Superfinal, but still believes in the current title holder, despite recognizing the advance of Stockfish.

The match is relatively short and anything can happen in the 100 games sprint. History has shown that early winners keep their advantage to the end of the match. However, statistics are a different story, the real one will start this Thursday live on the official site

S12 to start after the Superfinal

As TCEC is now a continuous divisions system, S12 is going to start right after the Superfinal. Read more about it here

tcec_11_poster_superfinal

 

TCEC Premier Division final standings

1. Stockfish 61,0/84
2. Houdini 54,5/84
3. Komodo 51,5/84
4. Fire 42,5/84
5. Chiron 36,0/84
6. Andscacs 35,0/84
7. Fizbo 31,0/84
8. Ginkgo 24,5/84

The big three is dominating the standings again, although every single engine has a different position than last season. Fire is the clear winner of the other contenders, ahead of Chiron and Andscacs, which completed it’s quest to promote and stay in the Premier Division. Fizbo and Ginkgo get relegated, with the status of favorites in First Division.

Assaf Wool from MyTCECexperience provides detailed statistics on the Premier Division.

Draw rate, wins

 

Final draw rate was 61.0% 

Game termination

The three most common game termination causes were:
37.8% - TCEC win rule
36.3% – TCEC draw rule
14.9% – 3-fold repetition

There were no engine crashes in the division, there was one game where the runner software crashed (game 268, Ginkgo – Houdini). The game reached a drawn 6-man position and was manually set as a draw.

Moves per game

 

Median= 60
Average= 69.1

Time per game (hours)
 

Median= 3:00
Average=2:57

Openings

The first double RR was bookless, and a summary of the bookless openings can be found in a previous post. Here I summarize the results of the remaining games, with book sequences by Cato. The first letter of the ECO codes was distributed as follows:
 

If we use the opening ‘family name’ (using format FAMILY_NAME: VARIANT….) the top 3 are:
Sicillian – 58 times
English – 24 times
King’s Indian – 24 times

The opening variant was mostly determined by the book sequence. 96.4% of the game pairs repeated the same ECO code twice, and 87.1% repeated the same opening variant. In all of the game pairs the ECO first letter was the same in both games.

Reverse pairs, wins

Again I’m restricting to the games with book sequences.

There were only 2 game pairs with a 1-1 biased result.

Reverse pairs, same moves  

Here I’m also restricting to the games with book sequences.

Pairs of reverse games diverged very quickly, 51.8% of the pairs diverged immediately after book, 78.6% repeated at most 2 plys.

Artwork by Ali Assiri

Artwork by Ali Assiri

TCEC Season 11 logo by Santiago Mendez

TCEC Season 11 logo by Santiago Mendez

Chessdom

2018 Costales Memorial has been rated by the CFC

Thursday, March 29th, 2018

 The CFC has rated the 2018 March TNT (Costales Memorial)

http://chess.ca/crosstable?tournament_check_number=201803097

Congratulations to the following who achieved peak new established ratings:

Harshani Konara  1948
Darren Flynn  1368
Aibike Myrzaibraimova 1470

Source: Chess Manitoba

Cecil’s Saturday Puzzle – March 24, 2018

Thursday, March 29th, 2018
from the Winnipeg Free Press
Mate in 2 (Loyd)

Source: Chess Manitoba

Ivan Saric is European Champion for 2018

Wednesday, March 28th, 2018

Batumi 2018 European Championship was held from 17 to 28 March in Batumi.
8 players had 7,5 points out of 10 before the last round. 3 of the games have finished draw.
Croatian GM Ivan Saric defeated David Navara in the last round and won the title with 8,5 points out of 11.
Seven players tied for second, and 24 players tied in the next score group.Top 23 finishers qualify for the World Cup.

replay the games here

fianl standings 2018 European Championship

1 GM Saric Ivan 2657 8,5
2 GM Wojtaszek Radoslaw 2738 8
3 GM Sjugirov Sanan 2652 8
4 GM Jones Gawain C B 2651 8
5 GM Matlakov Maxim 2707 8
6 GM McShane Luke J 2647 8
7 GM Korobov Anton 2664 8
8 GM Safarli Eltaj 2639 8
9 GM Nabaty Tamir 2690 7,5
10 GM Najer Evgeniy 2683 7,5
GM Demchenko Anton 2672 7,5
12 GM Grandelius Nils 2646 7,5
13 GM Yuffa Daniil 2521 7,5
14 GM Navara David 2737 7,5
15 GM Inarkiev Ernesto 2684 7,5
16 GM Hovhannisyan Robert 2601 7,5
17 GM Cheparinov Ivan 2693 7,5
18 GM Bok Benjamin 2622 7,5
19 IM Santos Ruiz Miguel 2488 7,5
20 GM Abasov Nijat 2608 7,5
21 GM Pashikian Arman 2585 7,5
22 GM Sarana Alexey 2577 7,5
23 GM Anton Guijarro David 2647 7,5
GM Parligras Mircea-Emilian 2642 7,5
25 GM Melkumyan Hrant 2664 7,5
26 GM Mamedov Rauf 2709 7,5
27 GM Guseinov Gadir 2646 7,5
28 GM Kobalia Mikhail 2599 7,5
29 GM Savchenko Boris 2550 7,5
30 IM Ferreira Jorge Viterbo 2492 7,5
31 GM Fridman Daniel 2637 7,5
32 GM Shevchenko Kirill 2545 7,5
33 GM Djukic Nikola 2523 7
34 GM Alekseenko Kirill 2609 7
35 GM Gajewski Grzegorz 2588 7
36 GM Ivanchuk Vassily 2713 7
37 GM Romanov Evgeny 2619 7
38 GM Paravyan David 2613 7
39 GM Svane Rasmus 2587 7
40 GM Onischuk Vladimir 2632 7
41 GM Sargissian Gabriel 2677 7
42 IM Hakobyan Aram 2497 7
43 GM Erdos Viktor 2627 7
44 IM Nguyen Thai Dai Van 2517 7
45 GM Ponomariov Ruslan 2697 7
46 GM Kravtsiv Martyn 2685 7
47 GM Motylev Alexander 2669 7
48 FM Esipenko Andrey 2581 7
49 GM Kovalenko Igor 2642 7
50 GM Steinberg Nitzan 2518 7
51 GM Predke Alexandr 2595 6,5
52 GM Jakovenko Dmitry 2746 6,5
53 GM Mchedlishvili Mikheil 2600 6,5
54 GM Brkic Ante 2590 6,5
55 GM Piorun Kacper 2653 6,5
56 GM Alekseev Evgeny 2617 6,5
57 GM Dubov Daniil 2701 6,5
58 GM Boruchovsky Avital 2542 6,5
59 GM Martirosyan Haik M. 2586 6,5
60 GM Berkes Ferenc 2671 6,5
61 GM Lupulescu Constantin 2627 6,5
62 GM Smirin Ilia 2594 6,5
63 GM Arutinian David 2536 6,5
64 GM Fedorov Alexei 2559 6,5
65 GM Yilmaz Mustafa 2619 6,5
66 GM Huschenbeth Niclas 2549 6,5
67 GM Zhigalko Sergei 2625 6,5
68 GM Bogner Sebastian 2588 6,5
69 GM Bologan Victor 2600 6,5
70 GM Vocaturo Daniele 2620 6,5
71 GM Stocek Jiri 2567 6,5
72 IM Lobanov Sergei 2468 6,5
73 IM Diermair Andreas 2507 6,5
74 IM Sargsyan Shant 2481 6,5
75 IM Lomasov Semen 2551 6,5
76 GM Movsesian Sergei 2632 6,5
77 GM Stupak Kirill 2541 6,5
78 GM Lenic Luka 2662 6,5
79 GM Sanikidze Tornike 2501 6,5
80 GM Mikaelyan Arman 2486 6,5
81 GM Palac Mladen 2546 6,5
82 GM Postny Evgeny 2579 6,5
83 GM Kantans Toms 2508 6,5
84 IM Santos Latasa Jaime 2549 6,5
85 GM Chigaev Maksim 2560 6,5
86 GM Meier Georg 2648 6,5
87 FM Kacharava Nikolozi 2362 6,5
88 GM Moroni Luca Jr 2559 6,5
89 IM Pavlov Sergey 2485 6,5
90 IM Asadli Vugar 2449 6,5
91 IM Golubka Petro 2503 6,5
92 GM Can Emre 2603 6,5
93 GM Stefanova Antoaneta 2481 6,5
94 GM Deac Bogdan-Daniel 2572 6
95 GM Skoberne Jure 2563 6
96 GM Maghalashvili Davit 2508 6
97 GM Lopez Martinez Josep M. 2584 6
98 GM Bartel Mateusz 2609 6
99 GM Gabrielian Artur 2493 6
100 GM Andersen Mads 2605 6
101 GM Pantsulaia Levan 2593 6
102 GM Bosiocic Marin 2611 6
103 GM Ponkratov Pavel 2613 6
104 GM Beliavsky Alexander G 2537 6
105 Oboladze Luka 2318 6
106 IM Beradze Irakli 2464 6
107 GM Martinovic Sasa 2604 6
108 GM Khalifman Alexander 2614 6
109 GM Minasian Artashes 2467 6
110 IM Vavulin Maksim 2583 6
111 GM Baron Tal 2529 6
112 GM Sutovsky Emil 2659 6
113 GM Krasenkow Michal 2644 6
114 GM Donchenko Alexander 2588 6
115 IM Harutyunian Tigran K. 2501 6
116 GM Hracek Zbynek 2589 6
117 GM Petrosyan Manuel 2569 6
118 IM Kantor Gergely 2527 6
119 WGM Goryachkina Aleksandra 2491 6
120 IM Kanmazalp Ogulcan 2473 6
121 FM Tutisani Noe 2394 6
122 GM Jojua Davit 2601 6
123 IM Bellaiche Anthony 2485 6
124 GM Kovalev Vladislav 2650 6
125 IM Golubov Saveliy 2495 6
126 IM Moiseenko Vadim 2552 6
127 IM Perunovic Miodrag 2429 6
128 GM Shengelia David 2508 6
129 IM Mindlin Alon 2442 6
130 IM Polivanov Anatoliy 2383 6
131 GM Volokitin Andrei 2639 5,5
132 GM Kuzubov Yuriy 2689 5,5
133 GM Indjic Aleksandar 2623 5,5
134 GM Bindrich Falko 2602 5,5
135 GM Kovchan Alexander 2596 5,5
136 GM Jobava Baadur 2685 5,5
137 GM Kelires Andreas 2523 5,5
138 GM Godena Michele 2505 5,5
139 GM Paichadze Luka 2581 5,5
140 GM Rakhmanov Aleksandr 2655 5,5
141 FM Danielyan Vahe 2331 5,5
142 IM Repka Christopher 2524 5,5
143 GM Neverov Valeriy 2480 5,5
IM Muradli Mahammad 2398 5,5
145 IM Rzayev Bahruz 2390 5,5
146 GM Ter-Sahakyan Samvel 2553 5,5
147 IM Flom Gabriel 2493 5,5
148 FM Martynov Roman 2319 5,5
149 GM Solak Dragan 2629 5,5
150 GM Oparin Grigoriy 2622 5,5
151 IM Mirzoev Emil 2403 5,5
152 GM Wagner Dennis 2566 5,5
153 IM Zanan Evgeny 2493 5,5
154 GM Nevednichy Vladislav 2542 5,5
155 IM Gadimbayli Abdulla 2416 5,5
156 IM Arabidze Meri 2369 5,5
157 FM Zarubitski Viachaslau 2425 5,5
158 FM Mgeladze Tamaz 2303 5,5
159 IM Soysal Serkan 2406 5,5
FM Konaplev Anton 2337 5,5
161 Nesterov Arseniy 2388 5,5
162 IM Zavgorodniy Sergiy 2430 5,5
163 GM Matinian Nikita 2514 5,5
164 WGM Girya Olga 2482 5,5
165 IM Erenberg Ariel 2415 5,5
166 IM Korchmar Vasiliy 2411 5,5
167 FM Mirzoyan David 2350 5,5
168 FM Ozen Deniz 2407 5,5
169 FM Schekachikhin Maksim 2406 5,5
170 GM Aleksandrov Aleksej 2630 5,5
171 CM Olcum Ahmet 2257 5,5
172 FM Janik Igor 2422 5,5
173 GM Ivanisevic Ivan 2587 5,5
174 FM Bernotas Arturs 2436 5,5
175 IM Haria Ravi 2424 5,5
176 FM Pogosyan Stefan 2322 5,5
177 FM Aliyev Ravan 2330 5,5
178 GM Meskovs Nikita 2536 5,5
179 GM Danielian Elina 2413 5,5
180 Mkrtchyan Sargis R. 2224 5,5
181 Lewtak Damian 2370 5,5
182 FM Blohberger Felix 2409 5
183 FM Drori Saar 2420 5
184 IM Sadikhov Ulvi 2477 5
185 IM Pijpers Arthur 2453 5
186 IM Kalashian David 2399 5
187 FM Voit Daria 2382 5
188 WFM Sargsyan Anna M. 2188 5
189 FM Krykun Yuriy 2339 5
190 IM Kriebel Tadeas 2520 5
191 IM Miron Lucian-Costin 2471 5
192 FM Davtyan Artur 2351 5
193 GM Jurcik Marian 2473 5
194 FM Torosyan Norayr 2371 5
195 IM Triapishko Alexandr 2530 5
196 FM Can Isik 2413 5
197 IM Draskovic Luka 2447 5
198 FM Suleymanli Aydin 2210 5
199 IM Schnider Gert 2414 5
200 FM Tifferet Shaked 2274 5
201 FM Eminov Orkhan 2295 5
202 Eynullayev Atilla 2147 5
203 FM Belous Mikhail 2355 5
204 GM Bagaturov Giorgi 2410 5
IM Huber Martin Christian 2372 5
206 FM Petriashvili Nikoloz 2329 5
207 IM Mazur Stefan 2439 5
208 Barseghyan Armen Ar. 2298 5
209 Akhvlediani Irakli 2318 5
210 Simonyan Latush 2111 5
211 Yeremyan Alen 1961 5
212 GM Ruck Robert 2529 4,5
213 GM Firat Burak 2453 4,5
214 Manafov Vugar 2263 4,5
215 IM Berchtenbreiter Max 2414 4,5
216 FM Ahmadzada Ahmad 2283 4,5
217 IM Yankelevich Lev 2437 4,5
218 IM Pechac Jergus 2440 4,5
219 IM Gvetadze Sofio 2308 4,5
220 FM Bosman Michiel 2398 4,5
221 FM Tsoi Dmitry 2347 4,5
222 IM Bashirli Nail 2384 4,5
223 FM Demianjuk Alexander 2313 4,5
224 Qalagashvili Pridon 2153 4,5
225 CM Stukan Martin 2210 4,5
226 FM Assaubayeva Bibisara 2369 4,5
227 Uzunoglu Efe Kerem 2060 4,5
228 GM Sanal Vahap 2543 4,5
229 GM Baghdasaryan Vahe 2431 4,5
230 FM Tate Alan 2399 4,5
231 FM Murzin Volodar 2316 4,5
232 CM Aleksanyan Hrant 2250 4,5
233 Oglaza Oskar 2240 4,5
234 IM Smolin Sergey 2153 4,5
235 FM Tokranovs Dmitrijs 2375 4,5
236 WGM Sandu Mihaela 2289 4,5
237 CM Tsvetkov Andrey 2252 4,5
238 Ismayilov Muhammad 2021 4,5
239 Melkonyan Arshak 2082 4,5
240 Babukhadia Levan 1968 4,5
241 GM Moiseenko Alexander 2659 4
242 Yeritsyan Hayk 2149 4
243 GM Kobo Ori 2500 4
244 GM Ushenina Anna 2423 4
245 Atakishiyev Elmar 1999 4
246 Gokhvat Peter 2248 4
247 FM Vykouk Jan 2445 4
248 CM Yuksel Atilla Koksal 2237 4
249 FM Nuber Blasius 2284 4
250 FM Nikolaidis Konstantinos 2184 4
251 FM Garayev Kanan 2252 4
252 WIM Utiatskaja Irina 2165 4
253 GM Fernandez Daniel H. 2505 4
254 WGM Paramzina Anastasya 2281 4
255 Babazada Khazar 2230 4
256 Qalichava Akaki 1796 4
257 FM Baglan Esat 2341 4
258 FM Gharibyan Mamikon 2312 4
259 Ziroyan David 2080 4
260 FM Eynullayev Altay 2163 4
261 FM Sargissyan Sargis 2284 4
262 Vardanian Hamazasp 2109 4
263 Asatryan Gor 1852 4
264 Soyunlu Narmin 2035 4
265 Naqopia Giorgi 1849 4
266 GM Antipov Mikhail Al. 2616 3,5
267 WGM Mikadze Miranda 2268 3,5
268 IM Sousa Andre Ventura 2417 3,5
269 WFM Kubicka Anna 2235 3,5
270 FM Burnett Andrew 2183 3,5
271 Hakobyan Hovhannes H. 2280 3,5
272 Ahadzade Kanan 1965 3,5
273 WGM Abdulla Khayala 2248 3,5
274 Tarun Kanyamarala 1920 3,5
275 IM Shevelev Arkady 2309 3,5
276 Lomaia Diana 1742 3,5
277 Turan Asim 2024 3,5
278 WFM Kuchava Ana 2149 3,5
279 Trisha Kanyamarala 1956 3,5
280 CM Samadov Read 2099 3,5
281 Gebigke Martin 2132 3,5
282 Shamatava Nikolozi 1570 3,5
283 Morozov Vitalij 2039 3,5
284 Janiashvili Mariami 1987 3,5
285 FM Hayrapetyan Artavazd R. 2370 3
286 Abdullayev Elshad 2168 3
287 IM Abdulov Orkhan 2412 3
288 Henseler Jorgen 2043 3
289 Demircioglu Emre 2285 3
290 CM Suleymanli Suleyman 1763 3
291 Mochalin Faddey 2110 3
292 Martsvalashvili Ruzvelt 1671 3
293 CM Orujov Farid 1770 3
294 GM Vallejo Pons Francisco 2716 2,5
295 Sahin Ozgun 2201 2,5
296 Day Thomas W 2083 2,5
297 Grinev Boris 2092 2,5
298 Valiyev Shahin 1634 2,5
299 IM Sprenger Jan Michael Dr. 2513 2
300 Tskipurishvili Daviti 1710 2
301 Pipia Ekaterine 1737 2
302 Tsotsonava Elene 1789 2

Chessdom

Caruana Wins FIDE Candidates’ Tournament

Wednesday, March 28th, 2018

Fabiano Caruana won the 2018 FIDE Candidates’ Tournament in Berlin convincingly, and earned the right to challenge Magnus Carlsen for the world title in November.
Caruana defeated Alexander Grischuk in the final round with the bla…

Source: Chess.com – Play. Learn. Share.

Zurab Azmaiparashvili ticket for ECU elections

Wednesday, March 28th, 2018

Zurab Azmaiparashvili announces his ticket for the ECU elections

- Zurab Azmaiparashvili announces his ticket for the ECU elections and launches campaign
- A Minister and world-famous organizers join the team
- The campaign platform under the motto “More to be done” was presented and distributed to the journalists

In a crowded press room at the Sheraton hotel in Batumi, ECU President Zurab Azmaiparashvili introduced his ticket for the forthcoming ECU elections to journalists and federation representatives.

After a very successful four-year term at the ECU helm, Zurab Azmaiparashvili is seeking re-election as ECU President. The elections will be held in September 2018 during the World Chess Olympiad in Batumi.

IMG_7268

Mr Azmaiparashvili ‘s bid received strong support from the Georgian Chess Federation and its President GM Giorgi Giorgadze, and also from the Georgian Deputy Minister of Culture and Sport, Mr Shalva Gogoladze.

Mr Azmaiparashvili said that he was delighted to announce that Mrs Dana Reizniece-Ozola, Woman Grandmaster and Minister of Finance of the Republic of Latvia, is joining his ticket. Mrs Reizniece-Ozola stated that she had been impressed by the achievements of the current ECU administration and that she is eager to join the team and help with further progress in “Chess in Schools” programs.

IMG_7311

Mr Azmaiparashvili also announced that the Chief Executive of Chess in Schools and Communities and the organiser of the London Chess Classic IM Malcolm Pein as well as the President of the Iceland Chess Federation Mr Gunnar Bjornsson will join his ticket.

Gunnar Bjornsson

Gunnar Bjornsson

ECU General Secretary Theodoros Tsorbatzoglou from Greece and ECU Deputy President Ion-Serban Dobronauteanu of Romania will both continue to serve on the ECU Board as part of the six-member ticket.

Mr Azmaiparashvili also expressed his support of the current Board members GM Adrian Mikhalchishin (SLO), Johann Poecksteiner (AUT), Martin Huba (SVK) and Finnbjorn Vang (FAI) who will continue to serve the ECU Board whether elected individually or serving in other positions in the ECU administration.

IMG_7249

Also present at the press conference were representatives of chess federations from Latvia, Sweden, Faroe Islands, Czech Republic, France, Serbia, Poland, Turkey and Belarus as well as members of the 43rd Chess Olympiad Organising Committee.

“More to be done” campaign page on Facebook

Mrs Dana Reizniece-Ozola, Woman Grandmaster and Minister of Finance of the Republic of Latvia

Mrs Dana Reizniece-Ozola, Woman Grandmaster and Minister of Finance of the Republic of Latvia

Mr Shalva Gogoladze, Georgian Deputy Minister of Culture and Sport

Mr Shalva Gogoladze, Georgian Deputy Minister of Culture and Sport

IMG_7253

Zurab Azmaiparashvili ticket for ECU elections

Theodoros Tsorbatzoglou, Carl Fredrik Johansson and Dana Reizniece-Ozola

Theodoros Tsorbatzoglou, Carl Fredrik Johansson and Dana Reizniece-Ozola

IMG_7264

IMG_7279

Chessdom

O2C Doeberl Cup 2018

Wednesday, March 28th, 2018

50th Doeberl Cup 2012Australia’s Premier Grand Prix tournament since 1963! The 2018 edition is held from 29 March to 2 April at the Canberra Southern Cross Club Woden. First prize is 4,000 AUD (~€2,500). Players receive 90 minutes to make 40 moves, then 30 minutes for the rest of the game plus 30 seconds per move starting from move 1.
In the Premier section are expected around 70 players.
Top seeded are GM Qun Ma, GM Timur Gareyev, GM Deep Sengupta etc…

Live game with analysis will be provided daily with the best chess software competing in the Top Chess Engine Championship – Komodo, Houdini, and Stockfish.

more live chessKarpos Open 2018/XLI Open Internacional Ciudad de San Sebasti?n/11th Pedro Lezcano Montalvo Memorial

starting list O2C Doeberl Cup 2018

1 GM Ma Qun 2645
2 GM Gareyev Timur 2590
3 GM Sengupta Deep 2579
4 GM Smirnov Anton 2543
5 GM Kunte Abhijit 2499
6 Mu Ke 2450
7 IM Ikeda Junta 2415
8 IM Sukandar Irine Kharisma 2408
9 IM Chapman Mark 2385
10 IM Lane Gary W 2385
11 IM Bjelobrk Igor 2380
12 IM Dale Ari 2374
13 IM Tao Trevor 2366
14 FM Clarke Brandon G I 2362
15 GM Johansen Darryl K 2354
16 IM Solomon Stephen J 2349
17 FM Liu Yi 2322
18 IM Brown Andrew 2278
19 FM Chen Pengyu 2273
20 FM Stojic Dusan 2265
21 FM Puccini Jack 2264
22 FM Song Raymond 2233
23 FM Lam Daniel King-Wai 2215
24 Kargosha Bahman 2211
25 FM Chan Luis 2210
26 Goldsmith Alan D 2179
27 FM Kethro Michael 2170
28 WIM Otgonjargal Sengeravdan 2162
29 Cannon David 2159
30 FM Hu Jason 2157
31 Zulfic Fedja 2156
32 WFM Nguyen Thu Giang 2131
33 Wright Neil S 2110
34 Cameron Alistair 2104
35 Maguire Tom 2096
36 Specht Josh 2094
37 WIM Guo Emma 2092
38 Litchfield Frederick 2054
39 Kuan Julian 2037
40 CM Ng Clive 2036
41 Parle Hughston 2033
42 CM Slater-Jones Tom 2032
43 CM Bhat Vishal 2028
44 CM Prasad Calvin 2024
45 WCM Jiang Zhaoyi 2011
46 Winkelman Albert 2010
47 Lo Willis 2005
48 CM Prasad Lalit 1986
49 Fasakin Oladoyin 1984
50 FM Mallari Donato 1966
51 Yu Sally 1960
52 Gong Noah 1955
53 CM Cabilin Jeff 1948
54 CM Lam Ross 1924
55 Paevskiy Igor 1919
56 CM Bennett Hilton 1911
57 Lai Cyrus Ho-Yeung 1909
58 CM Russell Paul 1897
59 Otawa Yuto 1895
60 Huang Jimmy Ching-Chih 1890
61 CM Slater-Jones Henry 1869
62 Lin Kerry 1851
63 WFM Hardegen Kathryn 1850
64 Renjith Sravan 1849
65 Goh Sean Christian 1837
66 Pigram Daniel 1771

Chessdom

TCEC Superfinal Stockfish – Houdini starts this Thursday

Wednesday, March 28th, 2018
TCEC Superfinal poster by Santiago Mendez

TCEC Superfinal poster by Santiago Mendez

Stockfish, the open source engine by Marco Costalba, Joona Kiiski, Gary Linscott and a huge community of contributors, has convincingly won TCEC Premier Division. Stockfish collected 61,0/84 points to secure the gold medal and the right to challenge the current champion Houdini for the TCEC Grand Champion title.

The Superfinal match of the Top Chess Engine Championship starts this Thursday and you can follow the games live on the official site

The reigning champion Houdini by Robert Houdart finished clear second with 54,5/84. It had better performance than the winner against Komodo, but a higher draw rate against lower rated engines.

Both Houdini and Stockfish incurred only a one loss during the Premier division. Stockfish lost a game against the bronze medalist Komodo, while Houdini lost a direct match with Stockfish. Scroll down for the full standings.

More: Defenchess wins TCEC Division 4 / Fritz wins TCEC Division 3 / Jonny wins TCEC Division 2 / Andscacs wins TCEC Division 1 / Stockfish wins TCEC Premier Division / TCEC facebook page

The Superfinal details

The TCEC S11 Superfinal will be 100 games match aka x50 double round robin. This match is played with 50 different openings so that each engine plays both black and white of the same position. The match will be presented with opening 1 used in games 1 and 2, then opening 2 used in games 3 and 4 etc. If the match is theoretically won for one side before game 100, the match will still continue until all 100 games have been played. In the case of a drawn match there will be a rapid match of 16 games with a time control of 25′ + 10″ with random openings selected from earlier in the same Season. In case it is still tied there will be a Blitz match of 8 games with a time control of 3′ + 2″.

The winner of the Superfinal will be crowned the TCEC Grand Champion and will keep this title until there is a winner in the next Superfinal. There is no automatic qualification for the reigning Grand Champion, it will have to go all the way through the next Season for it to be able to defend the title.

Stockfish will have an updated dev version for the Superfinal. The team has added a few extra improvements and are coming in high spirits in a quest for the TCEC Grand Champion title, something that has not been in the hands of Stockfish since Season 9.

Robert Houdart from Houdini has not been able to release a new version for the Superfinal, but still believes in the current title holder, despite recognizing the advance of Stockfish.

The match is relatively short and anything can happen in the 100 games sprint. History has shown that early winners keep their advantage to the end of the match. However, statistics are a different story, the real one will start this Thursday live on the official site

S12 to start after the Superfinal

As TCEC is now a continuous divisions system, S12 is going to start right after the Superfinal. Read more about it here

tcec_11_poster_superfinal

 

TCEC Premier Division final standings

1. Stockfish 61,0/84
2. Houdini 54,5/84
3. Komodo 51,5/84
4. Fire 42,5/84
5. Chiron 36,0/84
6. Andscacs 35,0/84
7. Fizbo 31,0/84
8. Ginkgo 24,5/84

The big three is dominating the standings again, although every single engine has a different position than last season. Fire is the clear winner of the other contenders, ahead of Chiron and Andscacs, which completed it’s quest to promote and stay in the Premier Division. Fizbo and Ginkgo get relegated, with the status of favorites in First Division.

Assaf Wool from MyTCECexperience provides detailed statistics on the Premier Division.

Draw rate, wins

 

Final draw rate was 61.0% 

Game termination

The three most common game termination causes were:
37.8% - TCEC win rule
36.3% – TCEC draw rule
14.9% – 3-fold repetition

There were no engine crashes in the division, there was one game where the runner software crashed (game 268, Ginkgo – Houdini). The game reached a drawn 6-man position and was manually set as a draw.

Moves per game

 

Median= 60
Average= 69.1

Time per game (hours)
 

Median= 3:00
Average=2:57

Openings

The first double RR was bookless, and a summary of the bookless openings can be found in a previous post. Here I summarize the results of the remaining games, with book sequences by Cato. The first letter of the ECO codes was distributed as follows:
 

If we use the opening ‘family name’ (using format FAMILY_NAME: VARIANT….) the top 3 are:
Sicillian – 58 times
English – 24 times
King’s Indian – 24 times

The opening variant was mostly determined by the book sequence. 96.4% of the game pairs repeated the same ECO code twice, and 87.1% repeated the same opening variant. In all of the game pairs the ECO first letter was the same in both games.

Reverse pairs, wins

Again I’m restricting to the games with book sequences.

There were only 2 game pairs with a 1-1 biased result.

Reverse pairs, same moves  

Here I’m also restricting to the games with book sequences.

Pairs of reverse games diverged very quickly, 51.8% of the pairs diverged immediately after book, 78.6% repeated at most 2 plys.

Artwork by Ali Assiri

Artwork by Ali Assiri

TCEC Season 11 logo by Santiago Mendez

TCEC Season 11 logo by Santiago Mendez

Chessdom

Caruana Wins Berlin Candidates, Will Play for World Championship

Wednesday, March 28th, 2018

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Caruana Wins Berlin Candidates, Will Play for World Championship

Fabiano Caruana of the United States has won the Candidates tournament in Berlin. With the victory, he earned 95,000 euros and will face Magnus Carlsen, the world champion, in a title match in London in November.

Caruana, who led going into the last round, closed with a flourish, winning his last game against Alexander Grischuk of Russia. It was the only decisive result of the round.

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Caruana finished with nine points, a full point ahead of his closest pursuers. (Each win was worth one point and each draw was worth a half point.) Sergey Karjakin of Russia and Shakhriyar Mamedyarov of Azerbaijan tied for second, each with eight points.

The tournament was organized by World Chess, the commercial partner of the World Chess Federation (FIDE), the game’s governing body. The total prize fund was 420,000 euros.

The venue for the tournament was K?hlhaus (or “cool house” in English), an industrial building in central Berlin that was built in the early 20th century as a cold-storage facility for fresh produce. Among the principal sponsors of the tournament were PhosAgro, a giant Russian fertilizer company; Kaspersky Lab, a global cybersecurity firm; E.G. Capital Advisors, an investment management company; S.T. Dupont, a global luxury goods maker; Prytek, a venture capital firm; and Isklar, a Norwegian mineral water company.

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Tuesday, the ceremonial first move of the round was made by Anatoly Karpov, a Russian ex-world champion, in the game between Kramnik and Mamedyarov.

The tension was high throughout the last round as half the field of eight players still had a chance to win, but only Caruana controlled his fate. With a ticket to the world championship at stake, the players who were still in position to win fought long and hard. The first of those games to finish was between Karjakin and Ding Liren of China.

Karjakin had White and opened with 1 e4. Ding replied 1 … e5 and the game entered the Ruy Lopez. After a series of exchanges by move 15, the position already looked drawish. But neither player could afford or wanted to agree to a draw. Finally, on move 27, Karjakin erred, allowing Ding to break through his position and win a pawn. Karjakin, who is known for his defensive prowess, was initially worried, as he explained in the press conference afterward. But then he realized that he had defensive resources. Indeed, he was able to force the exchange of all the heavy pieces (the queens and both sets of rooks). Though he was then down two pawns, He was able to build a fortress by relocating his knight to e4. From there, there was nothing that Ding could do to break through and they eventually agreed to a draw. That result essentially eliminated both players from contention for first.

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Ding, in his first Candidates tournament, finished in clear fourth, with 7.5 points. He was the only player in the competition to go undefeated.

In his game against Kramnik, Mamedyarov had Black. He needed to win to have a realistic chance to overtake Caruana. Kramnik opened with the Catalan and Mamedyarov intentionally chose a risky move (7 … Qd6) in an attempt to shake things up. Kramnik chose not to shy away from a fight and sacrificed a pawn to build up a strong initiative. The position soon became very complicated and sharp.

In the press conference after the game, both players said they looked at some incredible attacking and defensive strategies, but could find no way to tip the balance. Then on move 30, they traded errors and Mamedyarov found a nice resource to defuse the tension. He sacrificed an exchange that left him with a knight and two pawns for a rook in an endgame. Unfortunately for him, it was a dead equal endgame.

Kramnik avoided any possible pitfalls, including one last trick after 52 … Nd6 (53 Bd5? might have lost after 53 … Bd5 54 Kd5 Nf5, because White cannot play 55 Rg6 because of 55 … Kf7 and the rook would have been trapped). When he realized that the game would end in a draw and that he probably would not win the tournament, Mamedyarov buried his face in his hands, obviously distraught to have come so close.

Kramnik, who played enterprisingly throughout, finished with 6.5 points, tied with Grischuk for fifth and sixth places.

IMG 5213

The game between Grischuk and Caruana was the last to finish. It stretched on for almost six hours. Caruana had Black and opened with the Petroff (or Russian) Defense as he has had throughout the competition. It is an opening that is considered drawish, but Caruana had had good results with it. Grischuk, who is always a fighter, opted for a slightly offbeat approach, hoping to break through Caruana’s defenses, but Caruana showed that he had prepared well and by move 15, he had a rock-solid position.

At that point, Grischuk initiated a combination that forced a trade of queens and left him with his bishop pair. Chances were still roughly equal, but as the time control approached, Grischuk, who is prone to time pressure, made some errors. By the time the first time control has passed, Caruana had a clear edge. He won a pawn and then guided his extra pawn up the board, combining threats to advance the pawn with threats against Grischuk’s king, which was dangerously exposed.

After the game between Kramnik and Mamedyarov had ended, and Caruana knew he only needed a draw to clinch first, he chose to play on, preferring to play for the win, knowing that there was almost no danger of losing. After nearly 69 moves, he was rewarded with success, as Grischuk resigned in a hopeless position.

The tournament overall was one of the most exciting in memory. There was only one round where there were no decisive results – a very unusual occurrence in top-level competitions.

Caruana had the right mix of enterprising play and good decision-making at crucial moments. He showed what he can do, even under the moments of high stress. He will need those skills when he faces Carlsen for the title.

Karjakin, who started out dreadfully, losing two of his first four games, displayed resourcefulness by storming back to almost grab first, hanging the sole loss on Caruana in the process.

Mamedyarov played extremely enterprisingly, taking his chances when they presented themselves and converting them.

Kramnik played the most unusual and creative games, continually entertaining fans with his ideas.

Ding had a few lucky escapes, but was, for the most part, rock-solid, as reflected in his result.

Grischuk, as always, was dangerous, but his time management sabotaged his efforts.

IMG 5220

For the other two players in the tournament, Wesley So of the United States and Levon Aronian of Armenia, who finished with six points and 4.5 points, respectively, it is a competition that they will try to put behind them as quickly as possible.

Caruana, who is two years younger than Carlsen, will be a formidable challenger for the title. The two players have faced each other 31 times at slow time controls, with Carlsen winning nine games, losing five, and the rest ending in draws.

At the press conference after the tournament, Caruana was asked if he wanted to send a message to Carlsen ahead of their match. Mentioning that they will be playing each other in a competition in a few days, Caruana said, “Hopefully I can send him a message then.”

Photo Gallery

Source: World Chess Federation – FIDE

BREAKING: Caruana Wins FIDE Candidates’ Tournament

Tuesday, March 27th, 2018

Fabiano Caruana won the 2018 FIDE Candidates’ Tournament in Berlin convincingly. He defeated Alexander Grischuk in the final round with the black pieces. Sergey Karjakin blundered but held the draw vs Ding Liren, and both Kramn…

Source: Chess.com – Play. Learn. Share.

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