Final position — Black is winning
Old Indian Defence: Opening Trap (Wehnert–Metsjkarov)
Black wins in 6 moves with a decisive material gain. (Wehnert - Metsjkarov, 1970.??.??)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | d6 |
| 3. | Nf3 | Nc6 |
| 4. | Nc3 | Bg4 |
| 5. | d5 | Ne5 |
| 6. | Nd2 | Nd3+ |
How the Old Indian Defence: Opening Trap (Wehnert–Metsjkarov) works
The Old Indian Defence: Opening Trap (Wehnert–Metsjkarov) is a classic chess opening trap arising from the Old Indian Defence. In this line Black wins decisive material by move 6, punishing a natural-looking but losing idea from White.
The full sequence runs 1.d4 Nf6 2.c4 d6 3.Nf3 Nc6 4.Nc3 Bg4 5.d5 Ne5 6.Nd2 Nd3+. Each move looks reasonable, which is exactly why the trap is so effective over the board — White walks into it while trying to play "normal" developing moves.
This pattern is well known from master and correspondence play (Wehnert - Metsjkarov, 1970.??.??). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Old Indian Defence: Opening Trap (Wehnert–Metsjkarov) 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.