The 40th World Chess Solving Championship took place during the first week in August in Belgrade (above a night view from the Sava river), the capital of Serbia. In my previous article I wrote about the location and its history, and how much media attention the event got. The main event was dominated by the Polish solving team of Aleksander Mista, Piotr Murdzia and Kacper Piorun, who took the title.

Overview of the solving hall in Belgrade

In my report I selected some of the simpler problems for solving, so this is a good opportunity for those new to solving to have a go. Today I will give you the solutions, with extensive explanations that will hopefully allow you to appreciate this field of chess endeavour – and help you become a better solver in the process.

  • 1.Bc7! 1.Be5? Ne6 1.Bd6? Nd3 1…Na4 1…Ne6 2.Qf5# 1…Nd3 2.Qxd7# 1…Qxc7 2.Qf5# 1…f2 2.Qg2# 2.Qe4#
  • 1.Rc4 Qxc4 1…Rb5 2.Qd7+ Kxc4 3.Qd4# 1…Rc5 2.Nc7+ Kc6 2…Kxc4 3.Qg4# 2…Rxc7 3.Qg8# 3.Qe6# 1…Qd7 2.Rd4+ Kxe6 3.Qxd7# 1…Qb4 2.Rxb4 1…g4 2.Nf4+ Kxe5 3.Qe6# 2.Qd7+ Ke4 3.Nxg5#
  • 1.Bh3 g1Q 2.Nxg1 Ng5 3.Bg2 3.Bf5? Kd2 4.e4 Ke3 5.e5 Nf7! 5…Kf4? 6.e6 6.e6 Nd6+ 7.Kd7 Nxf5 3…Kd2 4.e4 Ke3 4…Kd3 5.e5 Kd4 5.e5 Kd4 5…Kf4 6.Nh3+ Nxh3 7.e6 Ng5 8.e7 Nf7 9.Kc7 6.Nf3+ Nxf3 7.e6 Nh4 8.Be4! 8.e7? Nf5 8…Kxe4 9.e7
  • 1…Bd5 1…Qb5 2.Be5 Bc6 3.Bc7 Nd5 4.exd4# 1…Bc6 2.exf4 Kd5 3.f5 Nc5 4.Rxd4# 2.Rb4 Bc4 3.Rb6 Nd5 4.Bxd4#
  • 1.Bg3 f6 1…– 2.Qxc3 d4 3.Qf3+ Kxe5 4.Bxf4# 1…Ra4 2.Qxc3 Rd4 2…d4 3.Qf3+ Kxe5 4.Bxf4# 3.Qe3+ fxe3 4.f3# 1…Kxe5 2.Bxf4+ Kxf4 3.Qe3+ Kg4 4.Qg3# 1…Bd7 2.f3+ Kxe5 3.Qb4 d4 3…fxg3 4.f4# 4.Qc5# 1…c2 2.Qxc2+ Kxe5 3.Bxf4+ Kxf4 3…Kd4 4.Nf5# 4.Qf5# 1…b4 2.f3+ Kxe5 3.Bf2 — 4.Bd4# 2.Qe3+ fxe3 3.f3+ Kd4 4.Ne6#
  • 1.Nd7 Ba7 1…– 2.Nc4+ Kd4 3.Nd2+ Rxa4# 1…Ba2 2.Nxc2+ Kxc2 3.Qxb3+ Bxb3# 1…Rxg4 2.Nf5+ Rxg3 3.Qa6+ Rxa6# 1…d4 2.Bf5+ Re4 3.Qa6+ Rxa6# 2.Qc4+ dxc4 3.Nf5+

Dr John Nunn (born April 25, 1955) is one of the world’s best-known chess players and authors. He showed early promise in chess and in mathematics, entering Oxford University at the unusually early age of 15. in 1989 he ranked among the top ten in the world in chess and went on to become a successful chess author and publicist.


Aug 16, 2021

Keymer wins Kramnik Challenge

16-year-old German chess prodigy Vincent Keymer has qualified to play on the Meltwater Champions Chess Tour after a nerve-wracking final day of the Kramnik Challenge, the 3rd event on the $100,000 Julius Baer Challengers Chess Tour. He won a brilliant game in the penultimate round to overtake his main rival Awonder Liang, and then got the draw he needed in the final round only after twice coming back from the dead against Dinara Saduakassova.

The only question is whether Vincent will be able to play, since the final regular Champions Chess Tour event starts on August 28th and clashes with the European Championship, which Vincent was set to play. In any case, the victory is certain to give him chances now or in future!

In terms of teams, Vincent’s Team Polgar again triumphed as they compete with Team Kramnik for the chance to travel to Dubai during the Carlsen-Nepomniachtchi World Chess Championship match.

See also: 

  • Official website
  • All the Gelfand Challenge games with computer analysis and commentary
  • Finding the NextGen in chess: The new Julius Baer Challengers Chess Tour
  • Praggnanandhaa powers into Champions Chess Tour
  • Gukesh books spot on Champions Chess Tour
  • Young stars compete in the Kramnik Challenge
  • Kramnik Challenge 1: Keymer grabs the early lead
  • Kramnik Challenge 2: Awonder and Nodirbek take over
  • Kramnik Challenge 3: Awonder leads before final sprint
Feb 10, 2017

Universal Rating System™ opens doors for global Chess community

This exciting new system is expected to make it much easier for chess players across the world to achieve an international chess rating.

Development of the new rating system was co-funded by the Chess Club and Scholastic Center of Saint Louis and the Kasparov Chess Foundation. Its launch follows more than two years of research. The URS™ has already had a major impact on many of the world’s top players as the January 2017 rating list heavily impacted the selection of the 2017 Grand Chess Tour wild cards.

The launch of the URS™ system represents a quantum leap in the way that chess ratings are calculated and is a completely new approach compared to the historical systems that have been in use since the late 1960s. It introduces the concept of a universal chess rating which is calculated by considering a players results across all time controls.

The system recognizes that there is useful information about a player’s strength in all games regardless of the time limit. As the speed of play increases, less importance is allocated to the game results while older games are also given less importance than more recent ones. All games played within the last six years are taken into account but players’ ratings are simultaneously reassessed whenever a new rating list is generated. In this way, the new ratings are always self-consistent and do not depend on any prior rating list.

The first URS™ rating list was published on Jan. 1, and was accompanied by the launch of an official website, which explains the new methodology in detail.

The rating algorithm was designed and developed by a research team which consisted of Maxime Rischard, J. Isaac Miller, Mark Glickman and Jeff Sonas. This team conducted extensive testing before finalizing the rating algorithm and found that the URS™ consistently predicted game results better than the existing ELO system used by the World Chess Federation. The superior results were observed “on a consistent basis, from year to year, and across all three rating categories”.

Another major draw-card of the URS™ rating system is that it will be free to use for any local organizers or chess federations that wish to make use of it. This is expected to be a major attraction as it will allow scholastic players and locally based amateur players to quickly achieve a URS™ rating by simply playing in their local events.

The new rating system will be piloted throughout 2017 with further optimizations likely at the end of this period. It is ultimately expected to have applications beyond chess and will hopefully find applications in a variety of other sports and games in the near future.

article source

Nov 24, 2017

1st European Corporate Chess Championship

Twenty eight (28) teams have already registered for the 1st European Corporate Chess Championship 2017 which will take place in the Town Hall of Honour of the City of Asnières, Paris/France, 24 – 25 November 2017. Among them some well known World brands. The first registrations follow:

Banque of France, Deutsche Bank Frankfurt (Germany), Gazprom (Russia) – 2 teams, Echesspedia (Belgique), KAISSA (France), Leonard (France), Oracle (France), Ville d’Asnières (France), A L’Abri (France), Sberbank (Russia) – ENGIE (France) 2 teams, Abyss Propreté (France), Corsica Flash (France), Champs d’Echecs (France), Kaspersky Lab (Russia), University of Science Amsterdam (Netherlands), Kids Up (France), Opinion Internationale (France), Event Consulting (Greece), Academy Paris (France), Comite ol Paris (France), OCDE1 (France)…

The tournament will be played as a Swiss Open in 9 rounds, with time control 15 minutes per game + 3 seconds per move starting from move 1.

Each team shall be composed of 4 players + 1 substitute player. The team can’t have more than one player over 2400 ELO but should have at least one player below 2000 ELO.

LIVE Games

Any corporate entity is allowed to register up to two teams. Chess Clubs, Chess Associations, and Chess Federations are not allowed to participate in the Championship. For each round at least one player of the team shall have a commercial relation with the company with which he is playing for. Players shall be in rating order in team’s composition (November ratings).

The registration deadline is Thursday 2nd November 2017.

Schedule of the Championship:

Friday, November 24: Rounds 1 – 4 from 3 pm to 7 pm.

Saturday, November 25: Rounds 5 – 9 from 10 am to 5 pm.

Saturday, November 25 at 7.30 pm:  ECU Gala Dinner and award ceremony of the 1st European Corporate Championship.

The total prize fund is 6 000 EUR, including special awards and individual medals. The winning team will be awarded with 3 000 EUR, second team with 2 000 EUR, and the third team with 1 000 EUR.

The organizers have negotiated a special price for the accommodations in the following hotels during the event: Hôtel Residence Europe***, Atypik Hôtel*** and Hôtel Princesse Caroline***.

The invitation is addressed directly to corporate entities, but we kindly ask the National Federations to assist us promote the event in order to strengthen our relations with the business community.

LIVE Games

Official Website

Contact information

In French: Jean-Claude MOINGT +33 6 03 00 47 79

In English and Russian: Deia ARENAS +33 7 70 88 65 28

The Official Invitation can be downloaded below or here

ECU Chess Corporate Championship_2017