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This is not a trick opening, useful only once such as is Kostics' Trap. This is my standard defense against the Four Knights opening. It has rich possibilities.
| 1. e2-e4, e7-e5. | |
| 2. Ng1-f3, Nb8-c6. | |
| 3. Nb1-c3, Ng8-f6. | So far this is the 4 Knights opening. |
| 4. Bf1-b5, Nc6-d4. | Black's bold attempt to grab the initiative marks Rubenstein's Defense. |
| 5. Nf3xe5, Qd8-e7. | Pressuring the knight, hoping to win back the pawn. |
| 6. Ne5-g4, Nf6xe4. | It worked! Now Ne4xc3+ would win the Queen. |
| 7. 0-0, Nd4xb5. | Preparing to protect the other knight from the rook. |
| 8. Nc3xb5, d7-d5. | This knight is worth protecting! |
| 9. d2-d3, Qe7-h4. | White wants the troublesome knight gone! |
| 10. Ng4-e3, Bf8-c5. | Trading knights just looks too dangerous. |
| 11. Ne3xd5, Ne4xf2! | White takes the bait, and now his queen is threatened. |
| 12. Qd1-f3, Nf2-g4+. | White's queen is saved, but the game is lost. |
| 13. Bc1-e3, Qh4xh2 mate. | None of white's responses could have prevented mate. |