Engine evaluation: -1 (second player wins). Column 6 is the right-side mirror of column 2. It looks close enough to the center to be reasonable. It is not. With perfect play, the second player wins from this position. The gap between "adjacent to center" and "two squares from center" is the gap between drawing and losing.
RedvsYellow
Move 1/14
A column 6 opening sequence
Why Column 6 Loses
The problem with column 6 is not that it is a terrible square. In isolation, column 6 is a perfectly fine place to put a disc. The problem is what it gives your opponent. When you open on column 6, you hand the second player a free ticket to column 4. And column 4 is the most powerful square on the board.
After you play column 6 and your opponent takes column 4, the position is already tilted. Your opponent controls the center. You are two columns to the right, disconnected from the heart of the board. Every threat you build on the right side can be answered by your opponent's central presence. But your opponent's central threats radiate in every direction, and you cannot cover them all.
The critical asymmetry is directional. When the second player sits on column 4 and you sit on column 6, your opponent's leftward development (toward columns 1-2-3) is completely uncontested. You have no presence on that side of the board. Your opponent can build threats in both directions while you are stuck building on the right.
How the Attack Develops from the Left
This is the defining tactical theme of the column 6 opening. The second player's winning plan almost always involves attacking from the left side of the board.
Here is why. After the first player opens column 6, the second player takes column 4. The first player's natural development targets columns 4-5-6-7, the right half of the board. But the second player can develop toward columns 2-3-4, building threats that the first player's right-side pieces cannot defend against.
The second player's diagonal threats are especially dangerous. Diagonals running from the lower-left to the upper-right cut across the board toward the first player's position. But diagonals running from the lower-right to the upper-left point away from the first player's pieces, into empty territory where the second player can build freely.
This creates a pattern where the second player constructs threats on the left side of the board, then uses the first player's forced defensive moves on the left to set up winning sequences in the center. The first player gets pulled further and further from their column 6 base, and eventually the position collapses.
The Central Fortress
The second player's winning strategy often involves what strong players call a "central fortress." After taking column 4, the second player stacks pieces in columns 3-4-5, building a dense cluster of discs in the middle of the board. This cluster creates multiple overlapping threats in every direction.
Against a centered opponent, you could challenge this fortress by building your own central presence. But from column 6, you are always one step behind. Your pieces reach the center late. By the time you stack discs in column 5, your opponent already has two or three pieces in column 4 with threats branching left and right.
The fortress is not just about occupation. It is about threat density. A piece in column 4 participates in more possible four-in-a-row lines than a piece in column 6. The second player's central pieces are working harder, contributing to more threats per disc. Your column 6 pieces are efficient on the right flank but weak in the global fight.
Traps and Tricks at Club Level
Column 6 loses with perfect play. But perfect play is rare at club level. The opening has some practical traps that can catch unprepared opponents.
The right-side blitz. If the second player responds passively, like playing column 1 or column 7 instead of taking the center, the first player can build rapid threats on the right side of the board. Columns 5-6-7 form a compact attack zone, and a quick three-in-a-row along the bottom can catch opponents off guard. This only works if the second player makes a significant error in the first few moves.
The diagonal ambush. From column 6, ascending diagonals (bottom-left to top-right) point toward the center. If the second player focuses too heavily on horizontal threats, the first player can sneak a diagonal through columns 4-5-6-7 that arrives unexpectedly. This requires the second player to miscalculate the height of stacked columns.
The misdirection play. Some column 6 players deliberately build obvious threats on the right side, then switch to a quiet move in columns 2 or 3. The second player, expecting a right-side attack, may over-defend the right and leave the left exposed. This is a practical trick, not a theoretical defense, but it works surprisingly often against players who autopilot their responses.
None of these traps save the opening at the highest level. A strong second player will take center, build carefully, and convert the advantage without drama. But in rapid games between intermediate players, column 6 can generate entertaining and complex positions.
When to Play Column 6
The honest answer: avoid it in ranked games. The -1 evaluation means you are starting from a losing position. Your opponent does not need to find brilliant moves to beat you. They just need to play solidly.
In casual games, column 6 is fine for variety. It creates positions that look different from the standard column 3 and column 4 openings, which keeps things interesting. If you are experimenting with right-side development or practicing your tactical vision, column 6 gives you practice navigating disadvantageous positions.
If your opponent opens with column 6 against you, take column 4 immediately. Do not get fancy. Claim the center, build threats in both directions, and convert your advantage patiently. The position will win itself if you stay focused.
Summary
Column 6 is a losing opening that teaches an important lesson. Being close to the center is not the same as being in the center. Two columns of distance is enough to create a decisive disadvantage. The second player attacks from the left, builds a central fortress, and converts methodically. Play it for fun, not for rating points.
We use essential cookies for authentication and site functionality. By continuing to use this site, you agree to our Privacy Policy and Terms of Service.
