Rescue the knight to d5
li-0MWF6Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Save the piece: one of your pieces is attacked — find the best way to rescue it.
Difficulty 1945 ShuffleRating — for advanced tacticians.
White to move — find the best continuation
How to recognize this tactic
Here the task is defensive: one of your pieces is under attack and must be rescued without losing more. Look for a move that saves it with tempo — a counter-check, an equal counter-attack or an interposition — rather than a passive retreat.
General method: before you move, list the forcing candidates — every check, every capture, every direct threat — and calculate those first. The solution to a tactic is almost always among them.
Position on the board
White: king h1, bishop g2, knight e7, pawn a2 h3 b4 c7.
Black: king f6, queen d4, pawn b5 a6 g6 f7.
7 white and 6 black pieces are on the board; the puzzle position arises after move 43.
The position in numbers
Black are ahead by 3 points of material (10 against 13; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on h1, the black king on f6.
It is White to move on move 43, with 21 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 4 pawns, Black 4. Files fully open (no pawns of either colour): d, e — natural highways for the rooks and queen. Half-open for White: f, g.
The White king has 1 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
43. Nd5+ Kg7 44. c8=Q Qa1+ 45. Kh2
Why it works
- Great move! knight to d5 keeps the pressure (+4.3).
- Well found: pawn to c8 (+4.9).
- Strong! king to h2 is the sharp choice (+4.8).
- You win decisive material (+4.8).
- If instead Kg7, then c8=Q and you win the pawn.
Move by move
- 43. Nd5+ — knight to d5 with check
- Kg7 — king to g7
- 44. c8=Q — pawn to c8
- Qa1+ — queen to a1 with check
- 45. Kh2 — king to h2
Types in this puzzle
Promotion
The pawn reaches the last rank and becomes a queen — decisively.
Promotion turns a pawn on the last rank into a queen and rewrites the evaluation on the spot. In tactics the passer rarely walks in for free — usually a sacrifice clears its path. Count the tempi: how many moves does the pawn need, and can the defender stop it in time? And watch the promotion square itself — it must be out of enemy reach or won by force in your combination.
Promotion race
Both sides push passers — win the race by a tempo.
A promotion race is a sprint between two passed pawns: both sides push toward the last rank, and victory goes to whoever queens first or queens with check. You will recognize it when both players have far-advanced passers that neither king can catch. Count the tempi literally, move by move, all the way to promotion. The classic mistake is spending a tempo on a "useful" move — in a race, almost any non-pawn move loses.
Save the piece
The attacked piece can be saved — with profit.
Saving the piece: one of your pieces is attacked, and the job is not to lose it for nothing. There are several tools: retreat with tempo, defend it, block the attack, or create a bigger counter-threat. Before retreating automatically, look for a retreat that attacks something — you save the piece and gain time in one move. The typical mistake is panicking onto the first available square, where the piece gets trapped again.
Provenance
Derived from the Lichess puzzle database (CC0).
Pack 014
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