Chessy
Van Geet Opening: Billockus-Johansen Gambit – Black's Repertoire Guide
The Van Geet Opening starts with the modest-looking 1.Nc3, but after 1...e5 2.Nf3 you have a chance to sharpen things immediately with 2...Bc5 — the Billockus-Johansen Gambit. You're not just developing a piece; you're baiting your opponent into a tricky position where one natural-looking move can backfire badly. The engine evaluates the position at +1.53, a clear edge for White, meaning you're worse here and need precise play. But don't let the number scare you — the statistics across over 37,000 games show that Black wins 46.4% of the time, and many of White's most popular replies are outright mistakes. Let's unpack what's going on.
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After 1.Nc3 e5 2.Nf3 Bc5, you're asking White a question: can they handle the pressure on f2? By developing your bishop to an active diagonal early, you're threatening a quick ...Qf6 or ...Nf6 ideas that target the kingside. The engine says White should grab the pawn with Nxe5 — which keeps a +1.53 advantage — but that's hardly obvious to many club players. In fact, most of White's common replies are punishable. You're betting that your opponent will either miss the best move or mishandle the complications after the pawn grab. This gambit suits players who want active piece play and are happy to sacrifice a small positional edge for practical chances.
The Critical Line: If White Takes
The engine's best move is Nxe5, grabbing your e5 pawn. The recommended continuation runs Nxe5 Nf6 a3 Be7. After taking the pawn, White plays a3 to kick your bishop, and you retreat to e7, regrouping. Notice that your knight now targets the e5-square and you haven't lost developmental time — your pieces are coming out naturally. From here you're down a pawn but have good activity. Black wins 46.4% of all games from this position, and White only scores 50.9% after Nxe5 — a surprisingly modest result for a position the engine considers nearly winning for White. That tells you practical play matters more than the raw evaluation.
Punishing White's Most Common Mistakes
The statistics reveal a goldmine for Black. The most popular move in the database is actually Nxe5 (14,647 games), but the second most popular is e4 (8,052 games). Here's the key: e4 is an inaccuracy that loses roughly 1.0 pawns compared to the best move. Even worse is d4 (5,578 games), which is a full mistake costing about 1.1 pawns. And e3 (4,877 games) is also an inaccuracy, losing about 0.7 pawns. So out of the five most-played White moves after 2...Bc5, four are suboptimal — and two are serious errors. If you study the correct responses, you'll be better prepared than the vast majority of your opponents.
What the Numbers Say About Your Chances
With 37,296 games in the database, we have a reliable picture. White wins 49.4%, Black wins 46.4%, and draws are rare at 4.3%. That Black win rate is surprisingly high for a position where the engine gives White +1.53. The gap between theory and practice is huge here — most players, even at decent levels, don't know how to convert the advantage after Nxe5. The mistakes (d4, e4, e3) all give Black real winning chances. Your job is to know which opponent moves are gifts and how to handle the main line when White plays correctly.
Results across 37,296 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nxe5 | 14,647 | 50.9% |
| e4 | 8,052 | 47.5% |
| d4 | 5,578 | 53.1% |
| e3 | 4,877 | 50.1% |
| d3 | 1,437 | 44.6% |
| Ne4 | 674 | 47.9% |
Frequently asked questions
Is the Billockus-Johansen Gambit sound for Black?
The engine gives White a +1.53 advantage, meaning Black is worse against perfect play. However, across 37,296 games Black still wins 46.4% of the time — a very respectable score. The gambit is playable at club level because many White players either avoid the best move Nxe5 or fail to convert the advantage afterward.
What happens if White plays d4 against the Billockus-Johansen?
White's move d4 is classified as a mistake, losing about 1.1 pawns compared to the correct Nxe5. It only scores 53.1% for White across 5,578 games — a poor result. You should be happy to see it; it gives you excellent counterplay.
How should Black respond to the most common move Nxe5?
After Nxe5 the engine recommends Nf6, developing with tempo and threatening the knight on e5. The line continues a3 Be7, where White asks your bishop to move and you retreat to safety. You're a pawn down but have active development and good practical chances.
Why is e4 an inaccuracy for White here?
After 1.Nc3 e5 2.Nf3 Bc5, White's e4 loses about 1.0 pawns of advantage compared to Nxe5. It's played in over 8,000 games but scores only 47.5% for White — meaning Black actually scores slightly better than White from that position. You should welcome e4.