The Grob Opening: Romford Countergambit — Black Strikes Back

The engine's top move, Bxb7, reveals the key tension in this position. White immediately grabs the b7 pawn in return for the sacrificed g-pawn. That's the critical idea you need to understand: White isn't just giving away a pawn for free — they want to rip a pawn off your queenside and then develop with tempo. Your job is to hold onto your extra material while getting your pieces out. After Bxb7 (the engine's best), the continuation is Nd7 h3 Bh5 — notice how Black calmly retreats the bishop to h5 rather than letting it get trapped. You keep the pawn, develop the knight, and avoid White's tricks. The engine wants you to stay solid, not greedy.

You'll see Bxb7 in the vast majority of games (11,885 out of 14,407), so that's the main line you need to know. But White has other ideas, and some are genuinely dangerous for you if you're not prepared. Let's look at the numbers from Black's perspective (remember, Black wins 37.2% overall in this position for reference):- Bxb7 (11,885 games): White scores 60.5%. This is the critical test — you'll face it most often and need to meet it with Nd7, as shown above.- Qb3 (1,842 games): White scores 64.8%! This is actually tougher for Black than the engine's top move because it attacks b7 and f7 simultaneously. You'll need to be careful here.- Qa4+ (269 games): White scores just 48.0%. This is an inaccuracy that loses ~0.7 pawns — the stats confirm it's a mistake you can punish.- d3 (231 games): White scores 47.6%, another inaccuracy losing ~0.9 pawns.- c5 (84 games): White scores only 39.3% — the worst of all the common moves, also an inaccuracy losing ~0.9 pawns.

The FACTS list three known inaccuracies in this position. Each one costs White between 0.7 and 0.9 pawns of advantage (compared to the correct Bxb7). Here's what to watch for:Qa4+ — White checks the king and attacks the rook. This looks scary but it's a mirage. White's queen has wasted time and your bishop on g4 remains active. The stats back this up: White scores only 48.0%, the second-worst win rate among common moves.d3 — White tries to challenge your d4 pawn and open lines. But this weakens the e3 square and gives you a target. You should keep the pawn chain solid and maintain the pressure. White's score drops to 47.6%.c5 — White pushes past your d4 pawn, but this just hands you the centre. Simply develop your pieces and keep the extra material. White scores a miserable 39.3% from here, meaning you win more than 60% of the time. Punish this mistake by keeping your extra pawn and activating your pieces.

Here's the confusing part: the engine says you're clearly better (-0.97), but in practice White wins 60.4% of games. How can you be better and still lose that often? Two reasons. First, the Romford Countergambit is a razor-sharp opening where one slip can cost you everything — if you don't know the engine's top continuation (Bxb7 Nd7 h3 Bh5), you'll quickly find yourself in trouble. Second, many Black players get greedy and try to hold onto the g4 pawn or grab more material, only to get caught in White's development lead. The 60.4% figure includes all Black players at every level, including those playing the opening for the first time. With the correct plan, you can join the 37.2% of Black wins — or push that number even higher.