Final position — Black delivers mate
Two Knights Defence: Back-Rank Mate (Yam–Wall) #2
Black wins in 8 moves by checkmate. (Yam - Wall, Internet 1996)
The moves
| 1. | e4 | e5 |
| 2. | Nf3 | Nc6 |
| 3. | Bc4 | Nf6 |
| 4. | Ng5 | Bc5 |
| 5. | Nxf7 | Bxf2+ |
| 6. | Kxf2 | Nxe4+ |
| 7. | Kg1 | Qh4 |
| 8. | Nxh8 | Qf2# |
How the Two Knights Defence: Back-Rank Mate (Yam–Wall) #2 works
The Two Knights Defence: Back-Rank Mate (Yam–Wall) #2 is a classic chess opening trap arising from the Two Knights Defence. In this line Black delivers checkmate on move 8, punishing a natural-looking but losing idea from White.
The full sequence runs 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 5.Nxf7 Bxf2+ 6.Kxf2 Nxe4+ 7.Kg1 Qh4 8.Nxh8 Qxf2#. 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 (Yam - Wall, Internet 1996). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Two Knights Defence: Back-Rank Mate (Yam–Wall) #2 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.