Chess Tactics

Why tactics take priority over strategy

There is a hierarchy in chess: a winning tactical blow cancels out all the strategic advantages the opponent has accumulated. You can have the best pawn structure in the world, perfectly placed pieces, an impeccable positional plan — if your opponent finds the tactical pattern that forces victory, all of it vanishes in one move.

That is why tactics are fundamental, even for positional players. Karpov, the positional player par excellence, had formidable defensive tactics — not to create attacks, but to detect and neutralise his opponents’ threats before they materialised.

Richard Teichmann, a grandmaster of the early 20th century, formulated the most famous truth on the subject: “Chess is 99% tactics.”

The Fork

The fork is the best-known and most frequent tactical pattern. One piece attacks two enemy pieces at the same time, and since the opponent can save only one piece at a time, he loses the other.

The knight fork is the most feared because the knight, with its L-shaped move that is not blocked by intervening pieces, can often reach unexpected squares. Beginners regularly underestimate a knight’s reach, especially in the middlegame when the board is crowded.

Typical fork patterns

Among the configurations to remember: the knight on c7 attacking king and rook at once (very common after a poorly played opening), the knight on f7 attacking queen and rook (d8 and h8), the queen attacking king and rook on an open file, the bishop attacking two unprotected pieces on the same diagonal.

The Pin

A pin occurs when a piece is “pinned” to its square because moving it would expose a more valuable piece behind it (notably the king). There are two types: the absolute pin, where the pinned piece legally cannot move because it would put the king in check, and the relative pin, where moving the piece is legal but exposes another valuable piece (the queen, for example).

Pinning a knight against the queen is one of the most frequent patterns in club games. When a knight on f6 is pinned by a bishop on g5 (with the Black queen on d8), that knight can no longer move freely — White can then build an attack knowing that this defensive piece is paralysed.

The Skewer

The skewer is the reverse of the pin. A valuable piece (often the king) is attacked and forced to move, exposing behind it a less valuable piece that is then captured. For example, a rook attacks a king on the e-file, the king moves, and the rook then captures the Black rook that was behind the king.

The skewer is less frequent than the pin in the middlegame, but becomes very common in endgames where the kings are active on open files.

The Discovered Attack

A discovered attack occurs when a piece moves and reveals behind it an attack by another piece that had been blocked. The piece that moves can itself create a threat, thus producing a double threat that the opponent often cannot parry.

Discovered check is the most devastating version: by putting the king in check through the discovery, the opponent is forced to respond to the check, allowing the piece that moved to do whatever it likes. Versions with double check (both the moving piece and the revealed piece give check) are particularly hard to defend against.

“Before the move, after the move — then analyse the position. Look for a tactical pattern in both cases.” — A classic principle of tactical training

The Sacrifice

The sacrifice is the most spectacular pattern: a piece is offered voluntarily to gain an advantage — tactical, positional or psychological. Pure sacrifices (where no immediate material compensation is foreseen) are the hardest to calculate and the most beautiful to appreciate.

Mikhail Tal, world champion in 1960, was the absolute master of the sacrifice. His talent for creating positions in which exact calculation was impossible — even for his top-level opponents — earned him the nickname “the Magician from Riga”. Some of his sacrifices proved objectively incorrect on analysis, but so complex that his opponents did not find the right defence at the board.

Zugzwang

Zugzwang (a German term meaning “compulsion to move”) is a pattern unique to chess: the opponent is in a situation where every move he plays worsens his position, but he is obliged to move because you cannot pass your turn. Common in pawn and king endings, zugzwang is also sometimes used as a tactical device in complex middlegame positions.

Mate in Two, in Three: the art of calculation

Solving mate-in-N problems is the most effective tactical training there is. These problems force you to calculate precisely, to visualise complete sequences, and to understand recurring mating patterns: the back-rank mate, the epaulette mate, Boden’s mate (two bishops), the smothered mate (knight).

Mating pattern	Pieces involved	Typical configuration
Back-rank mate	Rook or Queen	King trapped on the back rank
Smothered mate	Knight	King surrounded by its own pieces
Boden’s mate	2 Bishops	Diagonals converging on the king
Epaulette mate	Queen	King blocked by its own rooks
Arabian mate	Knight + Rook	King in the corner, rook covers a rank

How to train tactics effectively

The most effective method for improving tactically is to solve problems every day, regularly, rather than in long, irregular sessions. 15 to 20 problems a day for six months are worth more than 200 problems in one day once a month.

The best modern tactical training tools combine volume (tens of thousands of problems) with a spaced-repetition system. Chess.com and Lichess both offer excellent free tactics training systems. In a proper video training programme, tactics courses let you understand the patterns in depth, beyond simply solving puzzles.

To put your tactics into practice in an opening context, study the sharp positions of the Sicilian Defence, which produces more tactical combinations than any other opening. And for the special rules that sometimes create unique tactical opportunities, see our article on en passant and promotion.