Puzzle themes

Recommended

Healthy mix164,513

A bit of everything. You don't know what to expect, so you remain ready for anything! Just like in real games.

Phases

Opening10,015

A tactic during the first phase of the game.

Middlegame81,880

A tactic during the second phase of the game.

Endgame72,618

A tactic during the last phase of the game.

Rook endgame6,744

An endgame with only rooks and pawns.

Bishop endgame1,516

An endgame with only bishops and pawns.

Pawn endgame3,168

An endgame with only pawns.

Knight endgame1,041

An endgame with only knights and pawns.

Queen endgame1,203

An endgame with only queens and pawns.

Queen and Rook1,016

An endgame with only queens, rooks, and pawns.

Motifs

Advanced pawn7,519

A pawn promoting or threatening to promote is key to the tactic.

Attacking f2 or f7779

An attack focusing on the f2 or f7 pawn, such as in the fried liver opening.

Capture the defender1,398

Removing a piece that is critical to defense of another piece, allowing the now undefended piece to be captured on a following move.

Discovered attack10,269

Moving a piece that previously blocked an attack by another long range piece, such as a knight out of the way of a rook.

Double check886

Checking with two pieces at once, as a result of a discovered attack where both the moving piece and the unveiled piece attack the opponent's king.

Exposed king3,520

A tactic involving a king with few defenders around it, often leading to checkmate.

Fork25,227

A move where the moved piece attacks two opponent pieces at once.

Hanging piece8,322

A tactic involving an opponent piece being undefended or insufficiently defended and free to capture.

Kingside attack12,339

An attack of the opponent's king, after they castled on the king side.

Pin10,828

A tactic involving pins, where a piece is unable to move without revealing an attack on a higher value piece.

Queenside attack2,207

An attack of the opponent's king, after they castled on the queen side.

Sacrifice11,127

A tactic involving giving up material in the short-term, to gain an advantage again after a forced sequence of moves.

Skewer3,570

A motif involving a high value piece being attacked, moving out the way, and allowing a lower value piece behind it to be captured or attacked, the inverse of a pin.

Trapped piece2,730

A piece is unable to escape capture as it has limited moves.

Advanced

Attraction5,074

An exchange or sacrifice encouraging or forcing an opponent piece to a square that allows a follow-up tactic.

Clearance2,019

A move, often with tempo, that clears a square, file or diagonal for a follow-up tactical idea.

Defensive move8,581

A precise move or sequence of moves that is needed to avoid losing material or another advantage.

Deflection6,798

A move that distracts an opponent piece from another duty that it performs, such as guarding a key square. Sometimes also called "overloading".

Interference730

Moving a piece between two opponent pieces to leave one or both opponent pieces undefended, such as a knight on a defended square between two rooks.

Intermezzo2,579

Instead of playing the expected move, first interpose another move posing an immediate threat that the opponent must answer. Also known as "Zwischenzug" or "In between".

Quiet move4,883

A move that does not make a check or capture, but does prepare an unavoidable threat for a later move.

X-Ray attack615

A piece attacks or defends a square, through an enemy piece.

Zugzwang913

The opponent is limited in the moves they can make, and all moves worsen their position.

Mates

Mate in 19,405

Deliver checkmate in one move.

Mate in 222,509

Deliver checkmate in two moves.

Mate in 35,661

Deliver checkmate in three moves.

Mate in 4847

Deliver checkmate in four moves.

Mate in 5 or more179

Figure out a long mating sequence.

Smothered mate375

A checkmate delivered by a knight in which the mated king is unable to move because it is surrounded (or smothered) by its own pieces.

Back rank mate5,847

Checkmate the king on the home rank, when it is trapped there by its own pieces.

Special moves

Castling88

Bring the king to safety, and deploy the rook for attack.

En passant225

A tactic involving the en passant rule, where a pawn can capture an opponent pawn that has bypassed it using its initial two-square move.

Promotion2,767

A pawn promoting or threatening to promote is key to the tactic.

Underpromotion20

Promotion to a knight, bishop, or rook.

Goals

Equality4,117

Come back from a losing position, and secure a draw or a balanced position. (eval ≤ 200cp)

Advantage56,143

Seize your chance to get a decisive advantage. (200cp ≤ eval ≤ 600cp)

Crushing65,652

Spot the opponent blunder to obtain a crushing advantage. (eval ≥ 600cp)

Mate38,601

Win the game with style.

Lengths

One-move puzzle13,583

A puzzle that is only one move long.

Short puzzle110,733

Two moves to win.

Long puzzle31,041

Three moves to win.

Very long puzzle9,156

Four moves or more to win.

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