♟️ Chess, explained
A two-player strategy board game where the goal is to trap the opponent's king in checkmate.
What am I watching?
Chess is a turn-based duel between two players on an 8x8 board of 64 squares. White always moves first, and the players alternate one move at a time. Each side starts with 16 pieces — eight pawns, two knights, two bishops, two rooks, a queen and a king — and the entire game is about one thing: attacking the enemy king until it cannot escape (checkmate), while keeping your own king safe.
A game flows through three loose phases. The opening (roughly the first 10-15 moves) is about developing pieces, controlling the centre and getting the king castled to safety; top players have these moves memorised deeply, so early play is often fast. The middlegame is where plans collide — attacks on the king, fights for open files and weak squares, and tactical shots that win material. If neither side lands a knockout, the game simplifies into an endgame with few pieces left, where tiny advantages like an extra pawn or a more active king decide everything.
When watching a broadcast, keep an eye on three things: the engine evaluation bar (which side the computer thinks is better), each player's clock (running out of time loses the game just as surely as checkmate), and the players' body language in critical moments. Commentary will flag 'critical positions' — moments where only one move keeps the balance. In Indian broadcasts you will hear constant references to D Gukesh, Viswanathan Anand, R Praggnanandhaa and Arjun Erigaisi, the core of the country's current golden generation.
How scoring works
Chess has no running score during a game. A game has exactly three possible results: a win for White, a win for Black, or a draw. You win by checkmating the opponent's king — attacking it in a way that no legal move can escape — or when the opponent resigns or runs out of time on the clock (provided you have enough material left to ever deliver mate).
Draws happen several ways: by mutual agreement, by stalemate (the side to move has no legal move but is not in check), by threefold repetition of the same position, by the fifty-move rule (fifty consecutive moves by each side with no pawn move or capture), or when neither side has enough pieces to checkmate.
In tournaments, results convert to match points: 1 for a win, ½ for a draw, 0 for a loss. Players are ranked by total points, with tiebreak systems (or rapid/blitz playoff games) separating players who finish level. World Championship matches are played over a fixed number of classical games; if the match is tied at the end, faster tiebreak games decide the title — exactly how D Gukesh's 2024 match nearly went before he won the final classical game.
- Win = checkmate, opponent resigns, or opponent's clock runs out.
- Draw = agreement, stalemate, threefold repetition, fifty-move rule, or insufficient material.
- Tournament scoring: 1 point for a win, half a point for a draw, 0 for a loss.
- Losing on time is a full loss — the clock is part of the game.
- Stalemate is a draw, not a win — a classic way for a losing side to escape.
- Piece values as a rough guide: pawn 1, knight and bishop 3, rook 5, queen 9 — the king is priceless.
- Tied matches and tournaments are usually decided by faster tiebreak games.
Formats
Classical
Rapid
Blitz
Bullet
Armageddon
Chess960 / Freestyle
The rules
The board and the armies
Chess is played on an 8x8 grid of alternating light and dark squares, oriented so each player has a light square in their right-hand corner. Columns are called files (a-h) and rows are called ranks (1-8), which is how moves are written in notation — e4 means a piece moves to the e-file, 4th rank. Each player commands 16 pieces: eight pawns on the second rank, and behind them rooks in the corners, then knights, then bishops, with the queen on her own colour (white queen on a light square, black queen on a dark square) and the king beside her.
How the pieces move
Every piece has its own movement pattern, and no piece may move through another (except the knight).
Pawn
Moves one square straight forward (two on its first move), but captures one square diagonally forward. Pawns never move backwards.
Knight
Moves in an L-shape — two squares in one direction, then one square perpendicular — and is the only piece that jumps over others.
Bishop
Moves any number of squares diagonally, staying on its starting colour for the whole game.
Rook
Moves any number of squares horizontally or vertically. Rooks love open files.
Queen
Combines rook and bishop — any number of squares in any straight line. The strongest piece.
King
Moves one square in any direction. It can never move into check, and it is the piece the whole game revolves around.
Special moves
Three special moves trip up newcomers, and all three are perfectly legal.
Castling
Once per game, the king moves two squares towards a rook and the rook hops to the other side of the king. Allowed only if neither piece has moved, no pieces sit between them, and the king is not in check nor passes through an attacked square. It is the standard way to tuck the king into safety.
En passant
If a pawn advances two squares and lands beside an enemy pawn, that enemy pawn may capture it as if it had moved only one square — but only on the very next move.
Promotion
A pawn reaching the far rank must immediately become a queen, rook, bishop or knight of its own colour. Nearly always a queen; choosing anything else is called underpromotion.
Check, checkmate and stalemate
When a king is attacked, it is in check, and the player must immediately get out of it — by moving the king, blocking the attack, or capturing the attacker. If none of those is possible, it is checkmate and the game ends instantly. Stalemate is the crucial cousin: the player to move is NOT in check but has no legal move at all. That is a draw, not a loss — one of the most important escape hatches in chess and a frequent saviour of losing positions in endgames.
How games are drawn
Beyond stalemate, a game is drawn if the same position (same side to move, same possible moves) occurs three times — a player can claim this, and repetition of checks ('perpetual check') is the classic route to it. The fifty-move rule draws a game if fifty consecutive moves pass by each side without any capture or pawn move. Games are also drawn by mutual agreement, or automatically when neither side has enough material to ever checkmate (for example, king versus king, or king and bishop versus king). At elite level a large share of classical games end in draws, which is why faster tiebreaks exist.
The clock and time controls
Competitive chess is always played with a clock showing each player's remaining time; your clock runs only while it is your move. Run out of time and you lose (unless the opponent cannot possibly checkmate, in which case it is a draw). Most modern events add an increment — a few seconds added after every move — so players can never be completely out of time. The time control defines the format: classical events give 90 minutes or more per player, rapid sits between 10 and 60 minutes, blitz is 10 minutes or under, and bullet is the sub-3-minute online sprint. 'Flagging' — winning on time in a lost position — is a legitimate and celebrated skill in faster formats.
Ratings and titles
Every serious player carries an Elo rating — a number, typically between about 800 and 2800+, that updates after every rated game based on results against opponents' ratings. Beating higher-rated players gains you more points. FIDE, the world governing body, maintains separate classical, rapid and blitz rating lists.
Titles
FIDE awards lifetime titles: Grandmaster (GM) is the highest, requiring a 2500 rating plus three strong tournament performances called norms; below it sit International Master (IM), FIDE Master (FM) and Candidate Master (CM), with parallel women's titles (WGM, WIM, etc.). India has produced more than 80 grandmasters, a number that has exploded since Viswanathan Anand became the country's first in 1988.
The 2800 club
Crossing 2800 in classical rating is chess's most exclusive milestone — only a handful of players in history have done it. Arjun Erigaisi became one of them in late 2024, joining a list headed by Magnus Carlsen's record peak of 2882.
Competitions and the world title
The sport's summit is the World Chess Championship: a one-on-one classical match between the reigning champion and a challenger who earns the spot by winning the eight-player Candidates Tournament. In December 2024, 18-year-old D Gukesh of India beat Ding Liren in Singapore to become the youngest world champion in history — the second Indian after Viswanathan Anand, a five-time world champion, to hold the title. Beyond the title cycle, the calendar features elite invitationals (Tata Steel Chess in Wijk aan Zee, Norway Chess), the knockout FIDE World Cup, world rapid and blitz championships, and the biennial Chess Olympiad, a national-team event where India won double gold — open and women's — at Budapest 2024.
Conduct: touch-move and fair play
Over the board, the touch-move rule applies: deliberately touch one of your pieces and you must move it if it has a legal move; touch an opponent's piece and you must capture it if you legally can. Adjusting a piece on its square is allowed only after announcing it (customarily 'j'adoube' or 'I adjust'). Illegal moves are penalised, phones are banned from the playing hall, and anti-cheating measures — scans, transmission delays on broadcasts, fair-play screening of games — have become a standard part of elite tournaments in the engine era.
Glossary — 36 terms
Stats decoded
| Stat | Unit | What it tells you |
|---|---|---|
| Elo rating | points | The core measure of a player's strength, updated after every rated game. 2500+ is grandmaster territory, 2700+ marks the world elite, and 2800+ has been reached by only a handful of players ever. |
| Performance rating | points | The rating a player 'performed at' in a single event, computed from their score and the opposition's average rating. A 2800+ performance in one tournament is an elite result regardless of the player's actual rating. |
| Accuracy | % | An engine-derived percentage of how closely a player's moves matched the computer's best choices. Elite classical games are often played at 95%+ accuracy; sharp, messy games drag it down for both sides. |
| Average centipawn loss | centipawns | The average amount of engine evaluation (in hundredths of a pawn) a player gives away per move. Single digits over a game is world-class precision; big spikes flag blunders. |
| Blunders | count | Moves that swing the engine evaluation decisively against the mover. At elite classical level, a single blunder usually decides the game, which is why counts are so low. |
| Win rate with White | % | Share of games won when playing White. The first-move advantage is real — White scores measurably better than Black at every level — so this is expected to exceed the Black figure. |
| Win rate with Black | % | Share of games won when playing Black. Winning 'on demand' with Black is the hardest routine task in chess, and a high Black win rate marks out ambitious, dangerous players. |
| Draw rate | % | Share of games drawn. Very high at the classical elite level, where evenly matched, well-prepared players often neutralise each other; much lower in rapid and blitz. Neither good nor bad in itself, but fighting players run lower numbers. |
| Decisive game rate | % | Share of a player's (or event's) games that end in a win for either side rather than a draw. Broadcasters track it as a measure of how much fighting chess an event is producing. |
| Average game length | moves | Average number of moves per game. Neutral in isolation, but short decisive games suggest opening wins or blunders, while long games point to grinding endgame play. |
| Average time per move | seconds | How long a player spends per move on average. Watching this live reveals preparation (instant moves deep into the game) and time trouble (long thinks that leave seconds for the finish). |
| Live rating change | points | Rating points gained or lost across an event, shown live during broadcasts. Beating higher-rated players gains more; elite players may risk 5-8 points per game against much lower-rated opposition. |
Quick answers
How does a chess game end?
Three ways: a win by checkmate (the enemy king is attacked and cannot escape), a win when the opponent resigns or runs out of clock time, or a draw. Draws come from stalemate, threefold repetition of position, fifty moves without a capture or pawn move, mutual agreement, or insufficient material to ever mate. The king itself is never captured — the game stops at checkmate.
Who is D Gukesh and why is he a big deal?
Gukesh Dommaraju is an Indian grandmaster from Chennai who won the World Chess Championship in December 2024, beating China's Ding Liren in Singapore at age 18 to become the youngest world champion in history. He earned the match by winning the 2024 Candidates Tournament, also as its youngest-ever winner. He is only the second Indian world champion after five-time winner Viswanathan Anand, and the face of India's chess boom.
What is the difference between classical, rapid, blitz and bullet chess?
They differ only in clock time. Classical gives each player 90 minutes or more and is the most prestigious format; rapid gives more than 10 and up to 60 minutes; blitz is 10 minutes or under (3+2 is common); bullet is under 3 minutes, usually 1 minute, and lives mostly online. The rules of play are identical — but less time means more mistakes, more time scrambles, and more upsets.
What do chess ratings like 2700 mean?
Ratings use the Elo system: a number that rises when you beat expectations and falls when you underperform, based on opponents' strength. As rough landmarks, 1200-1600 is a developing club player, 2000 is a strong amateur, 2500 is grandmaster level, 2700+ is the world elite ('super-GM'), and 2800+ has been touched by only a handful of players in history, including India's Arjun Erigaisi. Magnus Carlsen's 2882 is the all-time peak.
How does someone become a grandmaster?
FIDE awards the grandmaster title for life once a player achieves two things: a published rating of at least 2500, and three 'norms' — performances at roughly 2600 level in tournaments that meet strict conditions on opposition strength and international mix. It typically takes years of professional-level play. Viswanathan Anand became India's first GM in 1988; the country has since produced more than 80.
Why do so many top-level chess games end in draws?
Because chess is objectively balanced and elite players are deeply prepared. With best play the starting position is believed to be a draw, White's first-move edge is small, and engines have taught professionals precise defensive technique. So when two 2750-rated players meet in classical chess, neutralising each other is the default outcome. Organisers counter this with faster time controls, anti-draw rules, and formats like Armageddon tiebreaks.
What is stalemate and why is it a draw?
Stalemate occurs when the player to move is not in check but has no legal move at all. Under the rules it is a draw, not a win — the game ends immediately with half a point each. It matters enormously in endgames: a side down to a lone king can often force stalemate against careless play, which is why converting a winning endgame requires precision and why 'stalemate tricks' are a staple of chess drama.
Why is India suddenly so strong at chess?
A generation inspired by Viswanathan Anand, built up through strong coaching hubs (especially in Chennai), cheap online play, and heavy tournament exposure, matured all at once. The results: D Gukesh became world champion at 18 in 2024, India won double gold (open and women's) at the 2024 Chess Olympiad in Budapest, R Praggnanandhaa reached a World Cup final, Arjun Erigaisi crossed the 2800 rating barrier, and the country's grandmaster count has passed 80 and keeps climbing.
What is the Candidates Tournament?
It is the eight-player, double round-robin event that decides the challenger for the World Chess Championship. Players qualify through routes like the FIDE World Cup, the Grand Swiss and rating. Winning it is often called harder than the title match itself. Gukesh won the 2024 Candidates in Toronto at 17, which put him in the match he won against Ding Liren.