Chess Tactics for Beginners: Fork, Pin, Skewer and Discovered Attack

The four tactical patterns that appear in almost every chess game — what they look like, how to set them up, and how to spot them before your opponent does.

Strategy is about long-term plans; tactics are about concrete sequences that win material or force checkmate right now. Below 1500, the vast majority of rating points change hands through tactics — not through deep positional understanding. Learn to recognise the four core patterns and you will start winning games you used to draw or lose.

The fork: one piece attacks two at once

A fork is when a single piece attacks two or more enemy pieces simultaneously, forcing the opponent to lose one. Knights are the most dangerous fork pieces because they jump over other pieces and their attack is hardest to see coming. A classic knight fork on e7 attacks both the king and a rook, winning the exchange. Look for fork opportunities whenever your knight can land on a square that threatens two targets at once — especially if one target is the king.

The pin: a piece that cannot move without losing something bigger

A pin occurs when moving a piece would expose a more valuable piece behind it to capture. There are two kinds: absolute pins — the piece behind is the king, so the pinned piece literally cannot move legally — and relative pins — the piece behind is valuable but not the king, so moving is legal but costly. Bishops and rooks create most pins. A pinned piece is paralysed and makes a great target to attack with pawns or other pieces.

The skewer: the reverse of a pin

A skewer is the tactical mirror of a pin. The more valuable piece is in front, and when it moves to escape the attack, the less valuable piece behind it is captured. A common skewer: a rook attacks the enemy king; the king must move, and the rook captures the queen standing behind it. Skewers are rarest of the four patterns but among the most decisive when they land.

The discovered attack: unleash a hidden weapon

A discovered attack occurs when moving one piece reveals an attack from another piece behind it. The moving piece itself often creates a second threat — check, fork or capture — making both threats impossible to meet at once. The most devastating version is the discovered check: moving a piece reveals a check from a bishop or rook, and the moving piece can take a free piece simultaneously, because the opponent must spend their turn escaping check.

The back-rank weakness: a special case worth knowing

After castling, many players leave their king trapped behind pawns on the back rank with no escape square. A rook or queen delivered to the first rank forces immediate checkmate. The solution is simple: create a luft — move a pawn one square to give the king a flight square. Checking whether you and your opponent have back-rank weaknesses should be part of every position assessment.

How to spot tactics in your own games

Tactical vision is a trainable skill. After every game, run the analysis report and look at the moves marked as blunders — yours and your opponent's. For each one, identify which pattern it belongs to: fork, pin, skewer, discovered attack, or back-rank. After two weeks of this habit you will find yourself seeing the same patterns on the board before you blunder rather than after.

Scan your games for missed tactics — free, instant analysis.