Tournament coverage with what reporting usually leaves out: the critical position, the line the engine confirms and the part you can actually train.
Updated on 2026-09-29
The story that went round is the favourite who pushed for a win that wasn't there. The PGN tells a different one: Erigaisi's attack was sound, reached +5.58, and the game was lost in the conversion, to a single attacking move played once the position was already level.
Read the full analysisUpdated on 2026-09-29
The open result is an upset, and a big one. But Brazil's two losses were not the same loss: one came from tactical mistakes made with more than an hour on the clock, the other from a better position thrown away with three minutes left.
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A scouting report doesn't tell Brazil what to play. It shows where each opponent tends to score less, with the number of games beside every figure. In round 3, Julia Alboredo walked straight into the defence Lan Yao scores best against.
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André Diamant opened 1.c4 against Ali Alothman, a move that does not appear once in the Iraqi's 29 games with Black in the sample. A scouting report is also useful this way: it tells you what the opponent has never had to face.
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Kata Karácsonyi opened 1.e4 in all 56 of her White games in the sample — every single one. A player who always opens the same move hides nothing, and that is exactly why everyone knows where she gives way: against the French, from 57% to 29%.
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Two Belgians opened 1.e4 in every White game in the sample — 46 of Elias Ruzhansky's and 31 of Thibaut Vandenbussche's. The other two never opened 1.e4 at all. Belgium's line-up decides which of the two teams Brazil faces.
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In the ten opponents' 270 White games, 1.e4 appears five times — never twice from the same player. Brazil can prepare its Black repertoire against 1.d4 on all eight boards, and the question becomes which 1.d4.
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Shou Otsuka records a 57.4% score with White and 25.0% with Black, over 52 games. The five Chilean players selected 1.e4 in 178 of their 185 White games. Brazil hold the rating advantage in both encounters, and this dossier demonstrates where that edge may translate into concrete opportunities on the board.
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Greece field a squad of five grandmasters and hold a 61-point advantage in average rating over Brazil, with Dimitrios Mastrovasilis remaining undefeated across 37 games with White in the sample. In the women's section, Brazil enter as theoretical favourites: four of the five Bolivian players initiate their opening moves with 1.d4, and three meet 1.e4 with the French Defence.
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Serbia out-rate Canada on all eight boards, and a scouting report does not close a 150-point gap. What it can do is point to the few places where a stronger player has scored less, and in round 3 two Canadians steered straight for them.
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Daniela Cordero had scored 25% in six games against 1.d4, and 17% in the three where she answered 1...e6. That is the move order she beat Hanxi Jiang with. A scouting report says where an opponent usually scores less; it does not say what happens on Saturday.
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All five Costa Rican players open 1.e4, two of them in every single White game. Uniformity has a price: against three of the five, the dossier recommends exactly the same move in reply.
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Mexico's best percentages belong to its lowest-rated player, a WCM on 2007 who scores 77.9% with White. Her sample is the under-13, under-14 and under-16 sections. Read the calendar before reading the number.
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Daqi Mao scores 81.2% with White — against opponents averaging 1966, more than 300 points below him. Two of Szidonia Lazarne Vajda's three losses in three years came at this Olympiad, both from level endings. The table and the board tell different stories.
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Yagiz Kaan Erdogmus, born in 2011, arrives rated 2716 with 5 points from 6 games and remains unbeaten. With Black, he scores 46.4% in 14 games against 1.d4. In the women's section, Sabrina Vega Gutierrez drops to 36.7% in 15 when the Sicilian is met with 2...Nc6, with Canada, Turkey, and Spain entering the round level on 10 match points.
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In the open section, Canada hold a 103-point average rating advantage over Turkmenistan, while Saparmyrat Atabayev scores 37.5% with Black against 1.d4 Nf6 2.c4 e6 in the opening moves. In the women's section, Canada encounter the United States, facing a 230-point rating deficit, where Alice Lee records 6 points from 7 rounds and Carissa Yip, the squad's first board, achieves a 44.2% score with White across the statistical sample.
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The dossier nailed the opening with grandmaster precision: in 17 of 24 games played by Brazil, the USA, and Canada, opponents played the most predictable first move in their repertoire. But anyone who plays tournament chess knows that a solid opening never wins the game on its own. The target low-scoring variations actually appeared on four boards, yet the players aiming for them failed to score a single win. Once the opening theory runs out, real chess begins, right where no prep file can calculate for you.
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On the eve of round 8, we dropped dossiers scouting the opponents of Brazil, the USA and Canada. In the 24 games that followed, the opponent's first reply in the opening moves was already pinned down in 23, and six boards landed straight in the chess opening flagged as vulnerable: the favoured side scored a crushing 4.5 out of 6. The rest of the fight was decided where no dossier can reach — on the clock and in severe time trouble. That is exactly where Personal Chess Coach steps in.
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Uzbekistan won the open and China won the women's event, both on 20 match points. Both golds were clear. Silver and bronze went to a calculation few people know how to do, and it explains why Germany made the podium with a lower tiebreak than the USA.
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In the last round in Samarkand, Gleb Dudin, rated 143 points below Gukesh, won with White and secured Hungary's draw against India. The game was decided by a king move on move 18, thought over for twelve minutes, and by what those minutes cost afterwards.
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The explanation going around is board one: Abdusattorov, unbeaten, with a 2869 performance. It is true and incomplete. Against India, China and the USA, the three matches that decided the gold, the player who won every time was board three, Nodirbek Yakubboev.
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In the last round in Samarkand, Humpy Koneru beat Nana Dzagnidze in 24 moves with a knight fork that only works because the rook on h3 is waiting behind it. The position is an exercise: try to find the move before reading the solution.
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The Olympiad's individual medal does not go to whoever scored most. It goes to the highest performance on each board, which is why Savitha Shri, with 9 out of 10, sits behind Lu Miaoyi on performance, and why the open's board-three gold went to a player rated 2655.
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No Latin American team finished above 22nd, and that says little. Reading the region by final placing is reading the seeding list with noise. What the table hides is who rose further than rating predicted: Peru climbed twenty places in the open without drawing a match. Faustino Oro played all eleven rounds on Argentina's top board as the team's lowest-rated player. And Brazil finished on the same 14 points as Peru, eleven places behind.
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The favourites went through, almost all without a scare. The upset that made the headlines was Arjun Erigaisi's, but it was not the round's biggest by rating gap: six open-section games were won by a player rated more than 430 points lower.
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The USA finished fourth in both events. In the open, the team that arrived as top seed ended one match point short of the podium. In the women's event, the Americans scored more game points than the silver and bronze medallists and lost the medal on Sonneborn-Berger, 418 to 424. The arithmetic shows the tiebreak did not punish the team that won more. It punished the team that played fewer of the strong ones.
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Jonas Buhl Bjerre opened 1.c4 against Fabiano Caruana, a move that does not appear once in his 56 broadcast classical games with White. A scouting report shows habits. Olympiad preparation is built to break them.
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Fabiano Caruana played 3.Bc4 against Vasyl Ivanchuk, the line where Ivanchuk has scored 33% — in three games. A scouting report with three games is a hint, not a plan, and the difference matters more than the 1-0 that followed.
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Vincent Keymer scores 36.2% with Black in this sample, and the lazy reading is a hole in his repertoire. The real one is that 77 of his 80 games were played against the top floor of world chess — which does not void the comparison, because the comparison is with himself.
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Humpy Koneru scores 42.6% with Black in this sample and Divya Deshmukh 37.1% with White, and the lazy reading is two holes in India's repertoire. The real reading is the calendar: those games are the Candidates, Norway Chess and the Cairns Cup, while their team-mates played opens.
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Against 1.e4, the five Armenians answered 1...e5 in 96 games and drew 70 of them. It is not a weakness — they lost only 14 — but it is the place where the unbeaten leaders of the open section score least with Black.
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All five Serbian players maintain average middlegame losses between 15 and 20 centipawns per move, representing the highest technical precision in either match. Aleksandar Indjic scores 38.5% in 13 games against 1.d4, while Alexandr Predke's French Defence yielded 25.0% in 6 encounters. In the women's section, Armenia enter the round one match point ahead of the USA.
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On top board in the open tournament, the USA face leaders Uzbekistan, who compete on home soil propelled by Javokhir Sindarov's staggering 2864 tournament performance. In the women's event, Canada enter with a 230-point deficit in average rating but lead the Americans in the standings, spearheaded by Maili-Jade Ouellet's formidable 6.5 from 8 on board one.
Read the full analysisUpdated on 2026-09-13
Carlsen reached +3.29 in a Catalan against Nepomniachtchi and lost. It wasn't the clock: 28.Qxb5 came with more than ten minutes to spare. Ganges Grandmasters won the final 7-5 and took the title from the defending champions.
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Four hundred teams, eleven rounds and a seeding list that says less than it seems: the top four seeds in the open section are 16 rating points apart. The United States start on top in the open, India in the women's event.
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Clutch Chess scoring doubles on day two and triples on day three to manufacture comebacks. There was no comeback: Topalov won six games, Kasparov two, and the final score is exactly twice the plain count.
Read the full analysisUpdated on 2026-09-12
The season's most lopsided scoreline put Ganges Grandmasters top of the group stage. Today, day 8, Ganges and Alpine APL Pipers only need to win to secure a spot in Sunday's final — and a Vachier-Lagrave slip the day before shows how the rout began.
Read the full analysisUpdated on 2026-09-11
The remark came in Bengaluru on day six of the Global Chess League. Twenty-four hours later Carlsen sat down against Sindarov with White and won in 36 moves. We measured the game to separate what it supports from what it does not about Geneva.
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The Powerbook 2026 is a statistical book of human moves, and that is exactly what sells it. We went to what ChessBase publishes about its own sample: 1.7 million high-class tournament games, and one book drawn only from players above 2550.
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Anand went wrong with nine minutes on his clock, Nepomniachtchi with eleven. In both cases the refutation was the only move that won, and in both cases it was found in under 35 seconds. We measured both games and recounted the day's four scores.
Read the full analysisUpdated on 2026-09-10
Three candidates were announced and two debated: Wadim Rosenstein dropped off the broadcast after his opening statement. What Timur Turlov and Jan Henric Buettner promised, checked against the recording, and how big those promises are next to the 2024 accounts.
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The Global Chess League pays more for a win with Black; the Olympiad counts only two points for a match won. Two different rules produce two different attitudes towards the same position.
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Six franchises, six boards per match and a scoring system that pays more for a win with Black. What the table shows after five days and twenty rounds, and what the games are worth learning from.
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With the lowest rating on her board, Shuvalova won five of her first six games. Her repertoire was not the Italian that has been quoted, and two of the wins came from worse positions — one of them lost by almost seven pawns.
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It was Sindarov who gave up material, and the position was level on move 18. The game turned when Firouzja, a pawn up with eight and a half minutes left, thought for 200 seconds before declining the queen trade.
Read the full analysisUpdated on 2026-09-08
The claim that AI diagnoses and humans build habits became the industry consensus this year. We went to the sources behind the consensus and checked what each one measured — and what it did not.
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With twelve moves to go, Anand had almost five times more time on the clock than Carlsen. He lost on time in a position the engine evaluates at zero. What the PGN shows about how each of them spent the clock.
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Twenty moves lost, the clock under fifteen seconds and exactly one move that drew. The day-two game at the Global Chess League is a manual of practical defence.
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The 2026 world championship challenger did not beat Anand in the opening or with a combination. He won because the level position stayed on the board until somebody had to decide with a short clock.
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The league's time control only gives an increment from move 41. We measured the rate of serious mistakes by time band across the first ten rounds, and the curve is steeper than intuition suggests.
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