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🇵🇱 Antoni Radzimski

The two-time world champion blundered a bishop in time trouble. The player across the board went on to take the title.

FIDE World Youth Chess Championships 2026, Montesilvano, Italy • Open Under-14 world champion, 9/11 • direct International Master title

The FIDE World Youth Chess Championships are the age-group world titles of the international federation, run in six sections — Open and Girls at Under-14, Under-16 and Under-18 — over eleven rounds of classical chess. The 2026 edition was held in Montesilvano, on the Adriatic coast of Italy, from 15 to 26 June, twelve days of play that FIDE called one of the strongest editions in the history of the event. The entry figure is agreed at 758 players; the number of countries is not. FIDE's own report says 84 countries, US Chess says 83 federations, and this page records the disagreement rather than choosing between them. A blitz tournament scheduled alongside the classical event was cancelled after two rounds, so it produced no standings.

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FIDE Master Antoni Radzimski of Poland won the Open Under-14 world championship with 9 points from 11 games. The section was, by FIDE's own account, one of the most fiercely contested of the whole event, and the medal race was reshaped in the last two rounds. The biggest of those shifts came in round nine, when the two-time age-group world champion International Master Mark Smirnov of Kazakhstan blundered a bishop in an almost equal position under severe time pressure, in a game against Radzimski. Smirnov slipped out of medal contention altogether.

The honest framing of that game is that it was decided by an error rather than by a combination, and FIDE's report says so directly. What Radzimski did with it is the part that separates a lucky point from a championship: he never looked back, and in the final round he beat Armenia's Artem T. Mamikonyan to reach 9 points and take the title outright.

An eleven-round Swiss is a specific kind of test. Nobody is knocked out, so a loss does not end a tournament, but nobody gets an easy path either: the pairing system pushes winners into other winners, round after round, until the leaders have played each other. Ties on points are broken by mathematical tie-break scores derived from the strength of the opponents each player faced, which means two competitors can finish on exactly the same number of points and receive different-coloured medals. At Montesilvano that happened in four of the six sections.

Nine players finished tied on 8 points in this section — an unusually wide logjam a point behind the champion, and a measure of how evenly matched the field was below the top. Damir Bulgak, playing under the FIDE flag, took silver on 8.5, and the bronze went to the United States' FIDE Master Ethan Guo, who had the best tie-breaks of the nine players on 8.

Youth results also feed the FIDE title system. Depending on the section and the finishing position, a World Youth medal can carry a direct title or a title norm — the formal, federation-recorded steps toward Grandmaster, International Master, Woman Grandmaster and their equivalents. That is why age-group results are worth more than the medal alone: they convert into permanent standing in the game.

Radzimski's gold carried a direct International Master title — not a norm toward one, but the title itself, awarded on the result. Direct titles at World Youth level are the reason these championships function as a pipeline rather than a showcase: a strong result converts immediately into permanent standing that the player carries into adult competition.

There is a second thing in the Round 9 game worth naming: severe time pressure is a competitive condition, not an accident of fate. Classical chess at this level is played with an increment, but a player who has spent his allowance early is making decisions in seconds while his opponent is not, and forcing that situation is part of the game. FIDE's report attributes the blunder to the time pressure rather than to the position, which was almost equal. The player who did not run out of time won.

World Youth medals are worth recording because of what they predict and worth qualifying because of what they do not. The championship is the main pipeline event of international junior chess: a large share of the players who later hold senior titles pass through these six sections first, and federations budget for it accordingly. But age-group results are a weak individual forecast. Many strong juniors never convert, and several of the strongest players in the game's history were never age-group world champions. The defensible claim is that this is a documented result against the best players in the world of the same age band, on a fixed date, under arbiters — not that it settles anything about a senior career.

The Under-14 section is where the pipeline is widest and the results are least predictable. Players at this level improve fast enough that a rating list months old can badly misdescribe the field, which is part of why nine competitors finished tied a single point behind the champion and why a two-time age-group world champion could drop out of the medals entirely. Winning it outright, rather than on a tie-break, is the least ambiguous outcome the section can produce.

Poland finished third in the championship's Best Federation standings, behind Azerbaijan and Canada, on results across all six sections. Neither FIDE's report nor the US Chess coverage published his age, school or family details, and this page adds none. Under-14 is an age band, not an age.

15 Jun 2026
Play beginsThe FIDE World Youth Chess Championships open in Montesilvano, Italy, with 758 players across six sections.
Round 9
The turning pointTwo-time age-group world champion Mark Smirnov blunders a bishop under severe time pressure; Radzimski wins and takes the lead in the medal race.
26 Jun 2026
Final-round winHe beats Artem T. Mamikonyan of Armenia to finish on 9/11 and claim the Open Under-14 world title.
26 Jun 2026
Direct IM titleThe gold medal carries a direct International Master title.
PersonCountryMilestoneAge / Stat
Antoni Radzimski🇵🇱 PolandGold — 9/11; direct International Master titleUnder-14
Damir Bulgak♟ FIDESilver — 8.5/11Under-14
Ethan Guo🇺🇸 United StatesBronze — 8/11, best tie-break of nine players on the scoreUnder-14
Mark Smirnov🇰🇿 KazakhstanTwo-time age-group world champion; out of the medalsUnder-14

The pivotal game was decided by an opponent's blunder in time trouble, and that should be stated rather than airbrushed — FIDE's own report is explicit about it. What is not luck is the two rounds that followed: a player who has just been handed a point in a nine-way traffic jam still has to win the final round to take the title, and he did, against Armenia's Artem T. Mamikonyan. The result carried a direct International Master title, which is permanent in a way the medal is not.

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