| Answer | Crossword Clue |
|---|---|
| SLAV | ... Defense (classic chess opening) |
| GAMBIT | Chess opening |
| CEE | Chess opening? |
| GAMBIT | Chess opening. |
| SICILIANDEFENSE | Chess opening |
| FOURKNIGHTSGAME | Chess opening |
| RUYLOPEZ | Chess opening |
| FEGATELLOATTACK | Chess opening |
| LOPEZ | Ruy ..: chess opening |
| BISHOPSPAWN | ... opening (chess maneuver) |
| GAMBIT | Sacrificial chess opening |
| RUY | ... Lopez chess opening. |
| RUY | .. Lopez (chess opening) |
| LOPEZ | Ruy ... (chess opening) |
| RUY | ... Lopez (chess opening) |
| RUY | .. Lopez: chess opening |
| PAWNTOKINGFOUR | Opening move in chess. |
| RUY | ... Lopez opening (chess tactic) |
| PETROV | Alexander ..., Russian who popularized a chess opening |
| defense | sequence of moves available in chess to the second player in the opening |
