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John Nunn Games: Interactive Replay Lab

John Nunn is an English grandmaster, mathematician, chess author and three-time World Chess Solving Champion. This page uses only John Nunn games in the replay lab, so the study route stays focused on his own calculation, attacking play, Black counterplay and technical conversion.

Key facts

Why John Nunn matters

Nunn's career is rare because it joins elite practical chess, problem solving, endgame research and exceptionally clear chess writing.

Style map

Nunn's chess in four practical themes

The examples below are framed around Nunn's own games only. The core training habit is to check candidate moves, respect defensive resources and convert the advantage cleanly.

🧩Problem-solving accuracyWorld solving titles reflect the exactness that appears in forcing chess variations.
⚔️Sharp practical playThe lab includes Sicilian, French, Caro-Kann, King's Gambit and Italian attacks from Nunn games.
Technical conversionNunn's wins often continue after the first tactic, so replay the conversion as carefully as the attack.
♟️Active Black counterplayThe Black-piece examples show Nunn fighting for activity rather than waiting passively.

Training adviser

Choose your John Nunn study route

Pick the type of calculation you want to train. Every recommendation maps to a real embedded John Nunn PGN on this page.

Open Replay Lab

Interactive games

John Nunn Replay Lab

Choose a John Nunn game, then step through the moves in the ChessWorld replay viewer. The selector includes only Nunn games from the supplied PGNs.

Choose a game above, then press the load button to open the ChessWorld replay viewer.

Books and endgames

Books, endings and problem solving

Nunn's author voice is practical: explain the idea, show the calculation, and make the reader understand why the move works.

📘Move-by-move clarityUse the replay lab slowly: pause before each forcing move and write down the candidate list.
Endgame researchNunn's endgame work shows how precise analysis becomes practical technique.
🧩Solving disciplineThe solver's habit is to verify every defensive try, not just admire the first attractive move.
  • Chess Endgames — connect Nunn's endgame reputation with the technical replay group.
  • Chess Tactics — use Nunn's calculation approach to test forcing moves.
  • King's Indian Defence — replay Beliavsky vs Nunn, Kuligowski vs Nunn and Hsu vs Nunn.
  • Sicilian Defense — replay Nunn vs Ward, Nunn vs Fedorowicz and Nunn vs Vydeslaver.

Training use

What club players can copy from Nunn

Copy the process, not just the moves. A Nunn-style study session is slow, exact and honest about the opponent's best defence.

1List forcing movesBefore checking the replay move, list checks, captures and threats for both sides.
2Find the defender's resourceDo not stop after your first good idea; ask what the opponent is trying to refute.
3Convert the advantageKeep replaying after the tactic, because Nunn-style accuracy includes the technical finish.

Frequently Asked Questions About John Nunn

Player profile

Who is John Nunn?

John Nunn is an English chess grandmaster, mathematician, chess author and world champion problem solver. His career combines elite over-the-board play, Oxford-level mathematics, major chess books and three World Chess Solving Championship titles. Start with the Key Facts cards and then load Nunn's Immortal, Beliavsky vs Nunn, 1985 in the Replay Lab.

Why is John Nunn called the problem solver?

John Nunn is called the problem solver because he became a world champion in chess problem solving as well as an over-the-board grandmaster. That double strength shows in his games and books: he searches for exact solutions rather than vague impressions. Use the Training-Fit Adviser and choose calculation to load a Nunn replay built around forcing decisions.

Was John Nunn a top-ten chess player?

Yes, John Nunn reached the world top ten during the English chess boom. His peak playing strength came alongside his reputation as one of the clearest chess analysts and writers in the game. Use the Style Map and then load one of the Nunn with Black games to see his practical strength in action.

What is Nunn's Immortal?

Nunn's Immortal usually refers to Beliavsky vs Nunn, Hoogovens 1985. It is a spectacular King's Indian attacking game where Nunn's Black pieces create a forcing tactical storm. Select Beliavsky vs Nunn, 1985 in the Replay Lab and pause around the exchange sacrifices to calculate the king hunt.

What was John Nunn's most famous early brilliancy?

Ost-Hansen vs Nunn, 1974 is one of Nunn's most memorable early brilliancies. The game came from the wild Vienna Frankenstein-Dracula line and ended with a spectacular forced mate. Open the Nunn Classics group in the Replay Lab and load Ost-Hansen vs Nunn, 1974.

Books, style and openings

What are John Nunn's best chess books?

John Nunn's best-known books include Secrets of Grandmaster Chess, Understanding Chess Move by Move, Nunn's Chess Endings and Solving in Style. Those works are valued because they combine clear prose, concrete calculation and serious analytical depth. Use the Books and Endgames cards, then load Nunn vs Hort, 1982 or Nunn vs Browne, 1983 for a long-form study session.

What is John Nunn's playing style?

John Nunn's playing style is precise, tactical and calculation-heavy. He was comfortable in sharp 1.e4 systems, Sicilian attacks, King's Indian counterplay and technical positions where exact variations mattered. Load Nunn vs Ward, 1998 in the Replay Lab to see opposite-side castling pressure turn into a controlled win.

Was John Nunn mainly an attacking player?

Nunn was not only an attacking player, but his attacking games are a major part of his appeal. His best attacks are usually based on exact calculation rather than pure bluff. Use the Nunn Attacking Games group and start with Nunn vs Fedorowicz, 1991 or Nunn vs Ward, 1998.

Which openings did John Nunn play with White?

With White, Nunn often entered principled 1.e4 systems including Sicilians, Italian structures, Ruy Lopez positions, French Defence attacks and Caro-Kann fights. The page's replay lab includes examples across several of those openings. Use the selector groups and compare Nunn vs Georgiev, 1988 with Nunn vs Sutton, 1984.

Which openings did John Nunn play with Black?

With Black, Nunn was especially dangerous in active counterattacking systems such as the King's Indian Defence and dynamic 1.e4 defences. His Black wins often show activity arriving before White can consolidate. Use the Nunn with Black replay group and start with Beliavsky vs Nunn, 1985.

Was John Nunn a King's Indian player?

Yes, Nunn produced several memorable King's Indian and King's Indian-style games, especially with Black. Those games show his willingness to accept risk for dynamic counterplay. Load Beliavsky vs Nunn, 1985, Kuligowski vs Nunn, 1983, or Hsu vs Nunn, 1992 from the Replay Lab.

What can club players learn from John Nunn?

Club players can learn from John Nunn to calculate forcing moves carefully before trusting intuition. His games repeatedly show that candidate moves, defensive resources and technical endings must all be checked concretely. Use the Training-Fit Adviser to choose calculation, attack, Black counterplay or technique, then replay the matching Nunn game.

How to use the replay lab

How should I analyse a John Nunn game?

Analyse a John Nunn game by pausing at forcing moments and writing down checks, captures and threats for both sides. Nunn's games reward exact calculation because many positions contain one move-order detail that changes everything. Use the Replay Lab and pause before the key tactical sequence in Beliavsky vs Nunn, 1985.

How should I use the adviser on this page?

Use the adviser by choosing the kind of Nunn lesson you want: classic brilliancy, attack, Black counterplay, calculation or technique. The adviser then loads a matching embedded Nunn PGN rather than a random model game. Start with the Training-Fit Adviser and follow its replay button into the lab.

Which John Nunn game should I replay first?

Beliavsky vs Nunn, 1985 is the best first replay if you want the famous brilliancy; Nunn vs Ward, 1998 is the best first replay if you want a clearer attacking lesson. Both are embedded in the Replay Lab. Start with the Nunn Classics group, then compare the Attacking Games group.

What is the best John Nunn game for calculation training?

Ost-Hansen vs Nunn, 1974 is ideal for calculation training because the king hunt is forcing and concrete. You can practise checking every defensive square before revealing the next move. Select Ost-Hansen vs Nunn, 1974 in the Nunn Classics group and pause before each check.

What is the best John Nunn game for attacking training?

Nunn vs Ward, 1998 is a strong attacking-training choice because the opposite-side castling plan is easier to follow than some of the wilder brilliancies. It shows pawn storms, open files and then conversion. Choose Nunn vs Ward, 1998 in the Nunn Attacking Games group.

What is the best John Nunn game for Black counterplay?

Beliavsky vs Nunn, 1985 is the clearest Black counterplay example because Nunn accepts danger, opens lines and turns White's king into the target. It is a high-energy King's Indian model. Load Beliavsky vs Nunn, 1985 in the Replay Lab and calculate from Black's side.

What is the best John Nunn technical game on this page?

Nunn vs Hort, 1982 is the best technical long-form game on this page because the pressure continues beyond the first tactical phase. It is useful for learning patient conversion. Open the Nunn Technical Games group and load Nunn vs Hort, 1982.

Solving, endgames and calculation

Why is John Nunn important for endgames?

John Nunn is important for endgames because he helped make tablebase discoveries useful for human players. His endgame books turned computer-perfect information into practical explanations about rook, minor-piece and pawnless endings. Use the technical-games group in the Replay Lab and start with Nunn vs Hort, 1982 for patient conversion work.

Was John Nunn a mathematician?

Yes, John Nunn was a mathematician with a doctorate from Oxford. His mathematical background helps explain the precision, structure and depth that made his chess writing and problem solving so respected. Use the Key Facts cards before opening the adviser, then choose calculation to follow the most Nunn-like study route.

Did John Nunn win world senior titles?

Yes, John Nunn won the World Senior Championship over-65 section in 2022 and again in 2023. Those wins show that his calculation and practical skill remained powerful long after his peak tournament years. Use the Style Map to focus on precision, then replay one technical Nunn game in the Replay Lab.

Was John Nunn a world solving champion?

Yes, John Nunn became a three-time World Chess Solving Champion. That achievement reinforces his reputation for exact calculation and problem-like precision. Use the Style Map's problem-solving card, then load Ost-Hansen vs Nunn, 1974 to practise solving a forced king hunt.

What is the link between John Nunn's solving and his games?

The link is exactness: solving trains the habit of checking all resources, and Nunn's practical games often show the same discipline. His attacks are not just romantic; they are calculated. Use the adviser with the calculation option and replay the recommended Nunn game move by move.

Did John Nunn write about endgame tablebases?

Yes, Nunn was one of the major chess authors who made endgame tablebase discoveries understandable for human players. His endgame writing helped bridge perfect computer knowledge and practical chess teaching. Use the Books and Endgames section, then replay a technical Nunn game such as Nunn vs Hort, 1982.

Is John Nunn a good player to study for improving calculation?

Yes, Nunn is excellent for calculation training because his games contain forcing lines, defensive resources and technical follow-through. He is especially useful for players who want disciplined analysis rather than guesswork. Use the Training-Fit Adviser and choose the calculation route.

Is John Nunn a good player to study for attacking chess?

Yes, Nunn is a good attacking model because many of his attacks are based on concrete accuracy and not just speculative sacrifice. That makes them useful for club players who want to improve their decision process. Use the Nunn Attacking Games group and compare Nunn vs Ward with Nunn vs Vydeslaver.

Is John Nunn a good player to study for defence?

Yes, especially from the Black-side games where he absorbs pressure and then seizes activity. His defensive play often becomes counterattack rather than passive resistance. Use the Nunn with Black group and study Seirawan vs Nunn, 1988 or Piskov vs Nunn, 1992.

Specific game study notes

How should I study Nunn's Immortal?

Study Nunn's Immortal by taking the Black side and asking what happens if White captures material, blocks a check or runs the king. The point is not just the sacrifice but the forcing net behind it. Load Beliavsky vs Nunn, 1985 and stop before each tactical decision.

How should I study Nunn vs Ward, 1998?

Study Nunn vs Ward, 1998 by following the pawn storm first, then the transition into the winning endgame. The game is a good reminder that an attack still needs a clean conversion. Load Nunn vs Ward, 1998 and continue replaying after the queens come off.

How should I study Nunn vs Hort, 1982?

Study Nunn vs Hort, 1982 as a long pressure game rather than a quick tactic. Watch how the initiative grows and how Nunn keeps improving pieces before the final conversion. Select Nunn vs Hort, 1982 in the technical replay group.

How should I study Nunn vs Georgiev, 1988?

Study Nunn vs Georgiev, 1988 as a sharp Caro-Kann lesson where early forcing play creates long-term attacking chances. Focus on why White keeps the initiative after the opening complications. Load Nunn vs Georgiev, 1988 in the attacking replay group.

How should I study Nunn vs Sosonko, 1982?

Study Nunn vs Sosonko, 1982 as a compact Caro-Kann attacking miniature. It is useful when you want a short replay session with immediate tactical pressure. Select Nunn vs Sosonko, 1982 in the Nunn Classics group.

How should I study Hebden vs Nunn, 1979?

Study Hebden vs Nunn, 1979 from Black's point of view as a King's Gambit counterpunch. The key training task is to see when development and tactics overtake material concerns. Load Hebden vs Nunn, 1979 from the Nunn with Black group.

How should I study the John Nunn replay lab?

Study the replay lab in small sets: one Nunn classic, one attacking game, one Black counterplay game and one technical game. That gives a balanced view of his chess rather than only the spectacular wins. Use the grouped selector and choose one game from each group.

How should I study John Nunn's books through games?

Study John Nunn's books through games by pairing each concept with one of his own practical games. For attacking calculation, use Nunn vs Ward or Nunn vs Vydeslaver; for Black counterplay, use Beliavsky vs Nunn or Kuligowski vs Nunn. Use the Replay Lab selector by group, then write down the one decision that made the theme work.

🧮 Solver insight: Nunn's example is not guessing harder; it is calculating cleaner, checking the defence, and finishing the job.
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