Square One
    Opening Walkthrough
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    Opening Coach

    Scandinavian Defense

    B01You play black
    1/8
    Opponent to move…

    White takes the center. You’ll challenge it right now, head-on.

    Your line8 to go

    Play the moves — your line builds here as you go.

    The Bd2 Trap, Inside Out

    White's famous queen-trap needs you to recapture with the knight or the pawn. Take with the QUEEN instead and the trick eats a piece of his.

    You answer 1.e4 with 1...d5 and the game is out of the book by move two. White's whole plan against this is a bishop to d2 that lines up on your queen through his own knight — a genuinely strong idea, and one that hands you a piece the moment he fires it at the wrong square. This tree gives you the answer to all three versions of it, plus the Tennison Gambit from the other side of the board (Square One already teaches White how to spring that one — now you get to break it).

    The line, move by move

    1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Bd2 Nf6 6. Nd5 Qxd5

    1. 1. e4 (opponent) The most played move in chess. You are going to answer it with the move almost nobody at your rating has prepared for.

    2. 1... d5 (you) d5! No development, no waiting — you punch at e4 immediately and force him to decide on move two. 188 million games say he takes 65% of the time.

    3. 2. exd5 (opponent) 65% take. Now the part every book warns you about — and every book stops one move too early.

    4. 2... Qxd5 (you) Qxd5. Yes, he gets to chase her. You get a pawn structure with no weaknesses and an opponent who has to know something you already know.

    5. 3. Nc3 (opponent) Nc3 — 78% play it, and it hits your queen with tempo. This is the position the whole opening is about.

    6. 3... Qa5 (you) Qa5! 33% crawl home to d8; 27% play this, and Stockfish agrees with the 27%. Trace the diagonal a5-b4-c3-d2-e1: your queen is pinning his knight to his king from three squares away.

    7. 4. d4 (opponent) d4 — 29%. The full pawn centre, and the knight on c3 is still nailed to the king.

    8. 4... c6 (you) c6. 35% of Black players choose it and so should you: it opens c7 as an escape hatch for the queen, takes b5 and d5 off his knight, and props a future ...d5 or ...b5.

    9. 5. Bd2 (opponent) Bd2 — HALF of all White players find it, and it is a very good move. It breaks your pin and reloads in the same breath: the bishop now aims at a5 straight through his own knight. From here, ANY knight move off c3 is a discovered attack on your queen.

    10. 5... Nf6 (you) Nf6. Full honesty: 45% play Qc7 and step out of the argument completely — safe, sound, boring. Nf6 is 17%, costs about half a pawn by the engine, and leaves your queen on a5 on purpose. Play it knowing exactly what is coming, because what is coming is the lesson.

    11. 6. Nd5 (opponent) Nd5 — only 1% play it, because the other 99% can smell that something is off. It attacks your knight on f6 and the c7 pawn and dares you to capture. Both obvious captures are a disaster: 6...Nxd5 7.Bxa5 leaves him +8.6, and 6...cxd5 7.Bxa5 leaves him +8.9. There is a third capture.

    12. 6... Qxd5 (you) Qxd5!! She eats the knight AND steps off the square his bishop was aiming at, in one move. Nothing on the board can recapture on d5. His bishop on d2 is now pointing at an empty corner and you are a clean knight up.

    Every branch cashes out

    7 coached branches in this family. Engine-checked finishes:

    • exd5 / d4 / Nd5+4.3 by force

      A free KNIGHT on move six — +4.4 to you. His trap needed the knight capture or the pawn capture; the queen was the only piece on the board that could take AND escape at the same time. The Bd2 trick is real. It just cannot survive being answered correctly.

    • exd5 / d4 / Ne4Sound line

      He is up about three-quarters of a pawn and that is all he gets. He sprang the Bd2 trick perfectly, you refused the one capture that loses, and now you have a half-open g-file pointed at a king that has not castled yet.

    • exd5 / d4 / Nf3Sound line

      He holds about a pawn and a half here, and that is the Scandinavian's honest price — the opening never promised equality. What it promised is a structure you have seen a hundred times against an opponent who has seen it twice.

    • exd5 / Nf3Sound line

      He is up about 1.2 and you have opposite-side castling with a plan you can write on a napkin: h5, g5, rook to g8, everything at his king. An engine edge is not the same thing as an easy afternoon.

    • e5Sound line

      Level — 0.1 his way, which is rounding error. He pushed past your Scandinavian, took space, traded a bishop for a knight, and reached move six with nothing to show for any of it. That is what a good answer to a sideline looks like.

    • Nf3 / Bc4+6.0 by force

      A whole KNIGHT on move four — +6.0. His own gambit teaches White to dive into f7 and it works beautifully, right up until Black's e-pawn opens the diagonal that hangs the diver. Same gambit, other chair, opposite result.

    • Nf3 / Nxe4Sound line

      +0.3 to YOU coming out of a gambit he chose. You took the free pawn, gave it back on your own terms, removed the knight that was doing all his work, and finished the opening as the better side. That is how you refuse an ambush.

    Why it works

    The Scandinavian puts your queen on d5 on move two on purpose, and White's whole punishment plan runs through one bishop move. After 4...c6 5.Bd2, the bishop stares at your queen on a5 straight through White's own knight, so any knight move off c3 is a discovered attack on her. It is a genuinely strong idea: half of all White players at this level find Bd2, and the version where the knight fires at e4 simply works.

    The trap inside the trap is the recapture. If the knight jumps to d5, both obvious captures lose the queen on the spot: 6...Nxd5 7.Bxa5 leaves White up 8.6, and 6...cxd5 7.Bxa5 leaves him up 8.9. The queen capture is the one the trick cannot survive, because Qxd5 eats the knight and steps off a5 in the same move. Nothing on the board can recapture, the d2 bishop is pointing at an empty corner, and you are a clean knight up: 4.4 by the engine, on move six.

    Only 1 percent of White players actually fire the knight at d5, because the other 99 can smell that something is off. That is fine; the rest of the tree is the same lesson in different clothes. Know which capture is poison and which one wins a piece, and the most feared club trick in the whole opening becomes a donation aimed back at its owner. The 2.Nf3 branch even hands you the Tennison Gambit from the defending chair, where a White player who stacks up on f7 and forgets his own knight loses it to Qxg5 for nothing.

    How to punish the Scandinavian Defense

    Playing against the Scandinavian is a case for patience, not refutation. The engine numbers in this tree are honest: across the main lines White holds somewhere between three-quarters of a pawn and a pawn and a half, and Bd2 is a very good move. The version of the discovered attack that actually works is Ne4, not Nd5. The e4 knight is bait rather than a gift: if Black grabs it, Bxa5 collects the queen at plus 8.5.

    Two warnings from the data. Never fire the knight at d5, where the queen recapture turns your trap into a lost piece. And think twice about 2.e5: the tree's answer runs on c5, the cxd4 trade, Nc6 with tempo on the queen, and a clean bishop recapture on c6, and it grinds White's edge down to 0.1, a rounding error. Take on d5, develop, and make Black prove the engine deficit matters over a long game.

    How to avoid falling into it

    The whole defence fits on an index card. After Bd2, treat every knight move off c3 as a discovered attack on your queen, because it is. Against Nd5, recapture with the queen, never the knight or the pawn. Against Ne4, do not touch the knight: step the queen to b6, let him take on f6, and recapture with the g-pawn to inherit the half-open file. And if you want out of the argument entirely, 45 percent of Black players play Qc7 before it starts: safe, sound, boring.

    The other place people burn is the Tennison move order, 2.Nf3 instead of the recapture. Take the pawn: 85 percent do, and the engine has you up a pawn for it. When the knight lands on g5, remember that e5 opens the d8-h4 diagonal and puts your queen's eyes directly on it. A White player who plays Bc4 to load up on f7 has left the g5 knight defended by absolutely nothing, and Qxg5 wins a whole piece on move four.

    Questions people actually ask

    Is the Scandinavian Defense sound?
    It never promised equality. In this tree's main lines the engine has White holding between roughly three-quarters of a pawn and a pawn and a half, and the coaching says so out loud. What you buy instead is a pawn structure with no weaknesses and positions you have seen a hundred times against an opponent who has seen them twice.
    What is the Bd2 trap in the Scandinavian?
    After 4...c6 5.Bd2, White's bishop aims at your queen on a5 through his own c3 knight, so any knight move is a discovered attack on her. Recapturing on d5 with the knight or the pawn loses the queen to Bxa5 at plus 8.6 and plus 8.9 for White. Half of all White players at club level find the idea, which is exactly why it is worth preparing for.
    Should Black recapture on d5 with the knight, the pawn, or the queen?
    The queen, and only the queen. Qxd5 captures the knight and vacates a5 in the same move, so the discovered attack hits empty air and nothing can take back on d5. The engine scores it plus 4.4 for Black: a free knight on move six. The knight and pawn recaptures both lose the queen on the spot.
    What if White pushes e5 instead of taking on d5?
    The advance happens 16 percent of the time and refuses the whole argument. The tree meets it with c5, fighting for the d4 square before White gets a pawn there, then trades into a position the engine calls 0.1 his way: rounding error, with his e5 pawn a permanent target and your structure untouched.
    What is the Tennison Gambit and should I take the pawn?
    It is 2.Nf3 against your Scandinavian, deliberately leaving e4 hanging. Take it: 85 percent of players do, and the engine has you up a pawn. The danger runs through the g5 knight and your f7 square, and the counter-trick is e5, opening your queen's diagonal. If White plays Bc4 and forgets the knight, Qxg5 wins it outright, plus 6.0 on move four.

    Drill the Scandinavian Defense against a real opponent

    The trainer above plays every branch with a coach explaining each move. When you are ready, take it into a live game, or paste your Chess.com or Lichess username and see which openings actually cost you rating.

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