The isolated queen’s pawn (IQP)
In short
An isolated d-pawn has no neighbouring pawns, so no pawn can defend it. It gives its owner space, open files (c and e) and outposts on e5 and c5, which make attacking chances on the kingside.
By the end you can
- Know the plans for both sides in IQP positions
- Judge when to trade pieces
The lesson
An isolated d-pawn has no neighbouring pawns, so no pawn can defend it. It gives its owner space, open files (c and e) and outposts on e5 and c5, which make attacking chances on the kingside. The cost is a long-term weakness and a hole in front of it (d4/d5) for enemy pieces.
With the IQP: keep pieces on, put a knight on e5, aim queen and bishop at the king, and look for the d5 break to open the position. Against the IQP: blockade the square in front of it with a knight, trade pieces — especially attacking minor pieces — and win the pawn in the endgame.
Key points to remember
- IQP side: activity, attack, d5 break
- Defender: blockade, trade, endgame
- Every trade helps the side playing against the IQP
Examples
Homework
Study two IQP games from the model players; note which pieces were traded and when.
More strategy lessons
- Reading a position: the imbalances (Class D)
- Good and bad pieces (Class D)
- Outposts and open files (Class D)
- Carlsbad structure and the minority attack (Class C)
- Hanging pawns and pawn breaks (Class C)
- Which pieces to exchange (Class B)