Ruy Lopez: Rotary-Albany Gambit: what should Black play?

dxc6! — The Only Good Move!

⚠️ Critical position — White has just lunged in with c6, creating a "take me or lose everything" moment.

Why this is the only good move: This is a fundamental "ask and answer" situation. White has placed a piece on c6 that attacks your a8 and threatens to disrupt your entire queenside. By playing dxc6, you eliminate the immediate threat, win the minor piece, and open lines for your d8 to enter the game.

Why Other Moves Fail

The traps: The main trap here is "analysis paralysis" or trying to be too clever with moves like Ba6. In chess, when an opponent places a piece on a square where it can be captured for free, you must calculate the capture first. Any other move allows White to consolidate their material advantage and leave your position in ruins.

How To Find The Only Good Move

Step 1 — Recognize the critical moment: White has moved a piece into your territory. You must identify what c6 is attacking (the a8) and what is defending that square (nothing).

Step 2 — Eliminate the traps: Calculate the consequences of ignoring the Bishop. If you don't take it, you lose a Rook. Since you can take it with a pawn for free, the choice becomes clear.

Step 3 — Verify the solution: After dxc6 O-O Qd6, Black has successfully neutralized the pressure and prepared to develop the remaining pieces like the g8.

📚 Pattern: Material Counting. When a piece is offered or forced into a trade, always ensure you aren't losing "the exchange" (a Rook for a minor piece) by failing to recapture immediately.