Luke McShane

Modern chess includes a panoply of ‘Indian’ openings, which share a common root in the starting moves 1 d4 Nf6 and include the King’s Indian, Nimzo-Indian, Queen’s Indian, Bogo-Indian, and Old Indian. But before 1900, the prevailing wisdom held that it was advisable for Black to contest the centre with a pawn advance. So the ‘Indian defence’, whose main characteristic was the fianchetto of the king’s bishop to g7, was a rarity — at least in games whose records survive. It was championed, with considerable flair, in a remarkable series of games played in Calcutta. John Cochrane was a Scottish barrister who practised in India for much of his career.

The rule of thumb for weighing up piece exchanges says that pawns are worth one, knights and bishops three, rooks five and queens nine. It is such a useful guideline that one can go a long way without ever questioning it, but strong players have a feeling for the limitations. The first diagram shows a critical moment from the final of the New in Chess Classic, the latest online event in the Meltwater Champions Chess Tour, which was won by Magnus Carlsen. He didn’t hesitate to sacrifice rook for knight and pawn, because the resulting position looks so cosy for Black. The knights on f6 and h5 are secure and ready to jump into e4 and g3. White’s pawn on f5 is an impediment to his own pieces, so the bishop and rooks are bystanders, while the pawn on e3 is permanently weak.

White to play and mate in two moves. Composed by Revd Ernest Clement Mortimer, The Problemist, 1942. Answers should be emailed to chess@spectator.co.uk by Monday 10 May. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery. Last week’s solution 1 Bd1! Kd3 2 Qd5 mate, or 1…Kc4 2 Qe4 mate.

The Candidates tournament resumed on 19 April in Yekaterinburg. Eight players competed for a €500,000 prize fund, but only one prize mattered — first place, and the right to challenge Magnus Carlsen in a world championship match. It was Russia’s Ian Nepomniachtchi who triumphed — more on that next week. But the clash below, a true chess epic, gets my vote for the best game. At the halfway mark, Fabiano Caruana trailed his next opponent, Maxime Vachier-Lagrave, by a full point. Caruana is feared for the depth of his preparation and had a year to prepare for this game, knowing that Vachier-Lagrave is stubbornly principled in sticking to his Najdorf Sicilian (characterised by the move 5…a6), whose intricacies he knows inside out.

Rameshbabu Praggnanandhaa, at 15 years old one of India’s most exceptional young players, emerged as the winner of the Polgar Challenge, an online event between 20 of the world’s brightest talents which took place earlier this month. It was the opening event of the $100,000 Julius Bär Challengers Chess Tour, and Praggnanandhaa earned himself a qualifying spot in the next Meltwater Champions Chess Tour event, alongside Carlsen and others. The mixture of ten male and ten female players gave the event an interesting spin. The top two women were both from China: Lei Tingjie and Zhu Jiner scored 10/19. The examples below show each get the better of a sharp tactical exchange. Lei Tingjie–Nurgyul SalimovaPolgar Challenge, April 2021 Strategically, Black is busted.

Since the start of the pandemic, opportunities for serious competition between players ranked outside the world’s top 20 have been scarce. So there was a pent-up appetite for the European Online Club Cup, which took place at the end of March, with more than 500 players registered (including more than 150 grandmasters) across 91 teams. Several teams from the 4NCL (Four Nations Chess League) took part: current champions Guildford, as well as Wood Green, Wood Green Monarchs, and Celtic Tigers. With backing from Roger Emerson and Nigel Povah, the Guildford lineup consisted of England team regulars Michael Adams, David Howell, myself and Gawain Jones, as well as Ivan Cheparinov from Bulgaria.

Twenty players were disqualified from the Fide World University Online Championships, out of almost 900. Does that call for moral despair, righteous jubilation, or just a weary shrug? It is no revelation that policing the game has become a major challenge, made all the more urgent by the shift toward playing online. The first obstacle is a technical one — how to identify all the bad apples without picking up false positives? Kenneth Regan is a computer scientist and international master whose statistical research has shown that the raw moves are packed with clues. Using the suggested moves from a top chess engine as a benchmark, his software can quantify how precisely a player has played.

If you wish to unsettle your opponents, first attack them and second, play the moves quickly. It’s far from easy to pull it off, but nobody does it better than Ian Nepomniachtchi. Among the world’s best, ‘Nepo’ stands out for his aggressive play, made all the more dangerous by marshalling an element of bluff. Are those moves coming so fast because he is still playing from memory, following his sharp opening repertoire? Has he already seen that the attack is overwhelming, and barely merits a second thought? One cannot know for sure, but Nepo is such a strong player (fourth in the world, at the last count) that one has to take him seriously. Nor does staring down a bluff promise an easy victory.

Have you ever played the Frankenstein-Dracula variation? The Monkey’s Bum? The Nescafé Frappé Attack? These are all real chess openings, and each has some merit. That is more than can be said for the Bongcloud, which begins with the moves 1 e4 e5 2 Ke2. This daft opening exploded in popularity last year when it was championed (in jest) by grandmaster and Twitch streamer Hikaru Nakamura. In fact the Bongcloud has hung in the air for much longer than that. According to one origin story (which appears genuine, but who knows?) an online persona named Lenny_Bongcloud was already playing it more than a decade ago. The Bongcloud has impeccable memetic credentials.

I write this with a sunny feeling. That’s partly because spring is upon us, but mostly because I have just spotted one of those winsome coincidences which lifts the spirits with its serendipity. The first part of this delightful dyad occurred in the preliminary stage of the latest (and ongoing) Magnus Carlsen invitational event. Shakhriyar Mamedyarov–Daniil Dubov,Magnus Carlsen Invitational, March 2021 Two pawns up, Mamedyarov is certainly expecting to grind out a win. His last move, 66 Bd4-e5 threatens Re7-c7+, skewering the bishop on c2. Quick as a whip, Dubov fires back with 66…Rf1!! to attack the pawn on f5. If White loses that pawn, the game is bound for a draw, and anyway Mamedyarov’s move 67 Rc7+ appears to win the bishop.