Final position — White is winning
King's Indian Defence: Wins a Pawn (Feijtens–van der Heiden)
White wins in 10 moves with a decisive material gain. (Feijtens - van der Heiden, 1982.??.??)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | g6 |
| 3. | Nc3 | Bg7 |
| 4. | e4 | d6 |
| 5. | f3 | O-O |
| 6. | Be3 | e5 |
| 7. | Qd2 | c6 |
| 8. | O-O-O | a6 |
| 9. | dxe5 | Ne8 |
| 10. | exd6 |
How the King's Indian Defence: Wins a Pawn (Feijtens–van der Heiden) works
The King's Indian Defence: Wins a Pawn (Feijtens–van der Heiden) is a classic chess opening trap arising from the King's Indian defence. In this line White wins decisive material by move 10, punishing a natural-looking but losing idea from Black.
The full sequence runs 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.Qd2 c6 8.O-O-O a6 9.dxe5 Ne8 10.exd6. Each move looks reasonable, which is exactly why the trap is so effective over the board — Black walks into it while trying to play "normal" developing moves.
This pattern is well known from master and correspondence play (Feijtens - van der Heiden, 1982.??.??). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the King's Indian Defence: Wins a Pawn (Feijtens–van der Heiden) in the Trapsterapp to play it out on a live board, drill it in practice mode, and learn how to avoid it when it's set for you — along with the full library of chess traps and gambits, fully offline.