Queen's Gambit Accepted: Old Variation Bf5 – Your Practical Guide

In this line, Black has developed their bishop to f5 before completing development — a choice that gains a tempo on your queenside but leaves the dark squares and the centre slightly vulnerable. Your main assets are a strong pawn centre (d4 and e3, with the option to push e3-e4), better development prospects, and a comfortable lead in space. Your knight on b1 is still at home, and Black's early ...Bf5 means they have spent a move on a piece that can later be chased away with g4 or Nf3-e5 (if Black plays ...e6). The engine's best continuation — Nf6 Nf3 e6 Nc3 — shows Black aiming for a solid French-like structure. Your job is to build up gradually, keeping the initiative without overreaching.

Let's see what Black plays most often from this position and how you fare against each option. These numbers come from nearly 800,000 games at this exact point. - e6 (392,071 games) — by far the most common, with White scoring 52.4%. This is the solid, classical approach; Black prepares ...Nf6 and ...Be7. - Nf6 (103,516 games) — the engine's top choice, and White scores a strong 54.1%. This is the most principled move, challenging you directly. - Bxb1 (103,052 games) — an outright inaccuracy, but popular. White scores a whopping 60.1% against it. - Nc6 (98,631 games) — a natural developing move, and White scores 57.4%, so you're doing well. - a6 (18,494 games) — another inaccuracy; White scores 55.6%. - c6 (17,653 games) — also an inaccuracy; White scores 55.2%. As you can see, the inaccuracies give you even better winning chances — especially Bxb1.

The statistics flag three inaccuracies you should recognise and exploit. Bxb1 loses approximately 0.9 pawns compared to the best move (Nf6). Black takes your rook, but after Rxb1, Black's queen is misplaced if it recaptures, and Black has wasted time trading a well-placed bishop for a rook that hasn't moved. Your development lead becomes serious. a6 loses about 0.7 pawns — it's a passive waiting move that does nothing for Black's development. Simply continue with Nf3, Nc3, and 0-0, and you will be faster out of the gate. c6 loses about 0.8 pawns. Here Black prepares ...b5 to kick your bishop, but again it's too slow. The engine says Black should have played e6 instead. In all three cases, the common thread is that Black neglects development or misplaces a piece — and you should punish that by developing naturally (Nf3, Nc3, 0-0) and keeping the centre solid.

Facing 4...e6? You'll see it more than any other move, appearing in over half of all games. White scores 52.4% here — solid but not crushing, which tells you Black's setup is resilient. The best approach is simple and consistent: play Nf3, bringing another piece out and preparing to castle. Black will almost certainly follow with ...Nf6 (the engine's continuation). Then you play Nc3, reinforcing your central presence. At this point the position starts to resemble a reversed Queen's Gambit Declined or a French Defence where Black has the bishop outside the pawn chain. Your plan: finish development (0-0, perhaps Re1), and look for the central break e3-e4 or a minority attack on the queenside. Do not rush — Black's light-squared bishop is a target, but chasing it prematurely with g4 can leave weaknesses. Build up first, then strike.