Emptying Columns: Advanced Spider Tactics

If you learn one Spider concept and nothing else, make it this: empty columns win games. The correlation between empty columns held during mid-game and final win rate is stronger than any other single variable the Strategy Desk has watched. Players who maintain one empty column through the middle of their games win regularly. Players who maintain two empty columns win at a rate that looks unreasonable. Players who never generate empties lose almost all the time. Every other Spider skill is in service of this one resource.

This page is the deep treatment of that one idea. We cover why empties work, how to manufacture them, how to defend them, how to use two empties in coordination, which traps burn empties fastest, and how to plan with empties in mind. If the Spider Mastery pillar is the big picture, this is the closeup on the single most important resource in the whole picture.

An empty column is a universal receiver. Any card, of any rank, of any suit, can land on it. Any same-suit descending run of any length can land on it as a block. That universality is what makes empties different from every other slot on the Spider tableau, because every other slot imposes a constraint: the top card of the column must be one rank lower and, for grouped moves, one suit matching. An empty column has no such constraint. It is the only place on the board where the normal Spider rules relax.

The practical consequence is optionality. With an empty column in hand, you can disassemble a mixed-suit run by parking its top card or sub-run on the empty and working your way down. You can temporarily store a King that is blocking a column you want to clear. You can stage a same-suit run that needs to swap homes but has no legal destination yet. Each of those plays is impossible without the empty. Together, they are the reason Spider games go from stuck to solved.

Empty columns also solve the stock-deal problem. A deal injects ten new cards across the ten columns. Without empties, those cards land on existing tops and constrain them. With an empty, one of the ten landing spots is a clean slate, which means the deal leaves the tableau structurally the same shape it had before — just one column deeper. That delta is the difference between a deal that complicates your life and a deal that simply delivers material.

We can count the optionality. With no empty columns, most compound moves require finding an exact same-suit match on an existing descending column. With one empty column, every compound move has an additional legal destination. With two empty columns, the move graph doubles again, because you can stage multi-part moves that use both empties as intermediaries. The optionality growth is roughly exponential per empty column, which is why two empties feel like a different game.

Empties also reshape the question of which face-down cards you can expose. Without empties, exposing a face-down card requires relocating every face-up card above it to legal descending slots. If any one of those cards lacks a destination, the exposure is blocked. Empties remove that blockage, because any card can land on an empty column. A face-down card that was unreachable an hour ago becomes reachable the moment you create an empty, and the gains compound because the newly-exposed face-down card may enable further exposures.

One more way empties win: they rescue you from deals that land badly. Even the best Spider players sometimes trigger a deal that drops a bad distribution — three Kings across the wrong columns, say, or a cluster of mid-rank cards that block existing runs. With empties available, the bad deal is recoverable: you park Kings on empties, offload awkward tops, and rebuild structure. Without empties, the same deal is game over. The insurance value of empties is why strong players guard them even when they do not have an immediate use.

Creating an empty column is a reverse-engineering exercise. You do not empty a column by playing forward, move by move, and hoping. You pick a target column, imagine it empty, and walk backward through the moves that would get it there. This reversal is the single most important technique in Spider strategy.

Start with target selection. The best candidates are columns with small face-up cards (low ranks go more places), short columns (fewer cards to relocate), and columns whose top cards have obvious same-rank partners elsewhere on the tableau. A column with a Nine on top is a candidate if there is a Ten elsewhere the Nine can slide under. A column with a King on top is a much worse candidate because a King can only go to an empty column — which you are trying to create.

Once you pick a target, list the cards on it from top to bottom and plan each card's destination. For each face-up card, identify which descending slot on another column can absorb it. If the card is part of a same-suit run, the run can go as a block; if it is isolated, it goes alone. Face-down cards cannot be relocated directly — they reveal a face-up card, which you handle when you get there. The plan is a sequence of destinations, one per card, and you walk the column down in order.

Sometimes a card has no current destination. When that happens, you need a preparatory move: rearrange a different column to create the destination first. That preparatory move is often where the creativity lives. A well-sequenced column clearing might use three or four preparatory moves across other columns before the actual emptying begins, and the preparations are what make the emptying possible.

There is also the option of sacrificing other positions. Sometimes the only way to empty column 4 is to break a same-suit run on column 7 and scatter it across columns 1 and 9. That sacrifice trades a structural asset (the same-suit run) for a different structural asset (the empty column). The trade is usually worth it — one empty column is generally worth more than one same-suit run of four cards, because the empty is reusable and the run is one-time. But the trade should be deliberate, not accidental.

A worked pattern: the two-short-column pivot. If two columns are unusually short — say, three cards each — and they share no obvious same-suit connection, you can often consolidate them. Move the top cards of both into descending slots on other columns, then consolidate the remaining cards onto one of the two columns, leaving the other empty. This pattern is particularly strong because it produces an empty without requiring you to break any of your longer runs. Short-column consolidation is the highest-leverage empty-creation move in the game.

Another pattern: the King-relocation cascade. A column anchored by a King is almost impossible to empty, because the King will still be there when you have moved everything above it. But if an empty column becomes available elsewhere, the King can relocate to the empty, and the old King-anchored column is suddenly cleanable. This is why empties beget empties — the first empty unlocks the ability to create a second, because it frees Kings that were blocking other columns.

An empty column is only valuable while it stays empty. The second someone drops a card on it, most of its optionality evaporates. A column with a lone King in it is still useful — you can build down from the King — but the universal-receiver property is gone. The defense of empties is therefore the tactical counterpart to creating them.

The rule at the Strategy Desk is this: never fill an empty column on reflex. Every card you place into an empty costs you the optionality of the empty, and that cost must be justified. If placing a King there buys you a specific sequence of moves that delivers a completed run, the placement is justified. If placing a random card there just gets the card out of your hand, the placement is a loss.

The question to ask before committing a card to an empty column: what does this card do once it lands? If the answer is “it starts a new descending run,” the commitment is fine. If the answer is “it sits there,” do not make the move. The empty column is strictly more valuable than an idle King.

There are exceptions. If you have two empty columns and dropping a King in one of them unlocks a major cascade, do it — the second empty preserves enough optionality to cover the loss of the first. If a deal is imminent and you are forced to fill every column to trigger the deal, commit the minimum card that still preserves some run- building potential on that column. Empties are a budget, not an absolute; spend them when the game requires spending.

The discipline to defend empties is harder than the technique to create them. Players feel an urge to tidy the tableau and an empty column feels like a gap that needs filling. Treat the feeling as a warning signal, not a prompt. Empty columns are supposed to look like gaps. That is their function.

A defensive technique that helps: before committing any card to an empty, out loud (or in your head), name the specific payoff. Say something like “placing this King in the empty frees the Queen of Spades, which merges with the Jack of Spades on column 3, which exposes a face-down card.” If you cannot articulate a chain of at least two consequences, the placement is probably premature. The verbalization forces you to simulate through the consequences before committing to them.

Two empty columns is a milestone. From that state, nearly every Spider position becomes solvable if it was already close. The two-empty state gives you what we call compound flexibility: you can perform multi-step moves that use one empty as a staging area and the other as a final destination, and then re-open the staging empty for the next move.

A worked example. Suppose column 6 has a mixed run of four cards on top of a face-down card, and you want to expose the face-down card. With zero empties, you need to find four different descending slots on four different columns — one for each card — and place them one at a time. With one empty, you can park the mixed run's top card, which may expose a same-suit sub-run of three that can move as a block. With two empties, you can dismantle the whole run quickly: stage the top on empty A, move the sub-run to empty B, then place the top from A onto its own destination. The face-down card is exposed in three or four moves instead of six or seven.

When you reach two empties, slow down. The tableau is now unusually capable, which means there are probably several cascades available that were not visible with one empty. Scan the whole board before using either empty — the right sequence often uses both empties in coordination and can solve a problem that looked impossible two moves ago.

Holding two empties into the fifth deal is a meaningful aspiration. Most winnable 4-suit hands can be reached from a two-empty state heading into the final deal. If you can engineer your play to produce two empties before deal five, you have given yourself the tools the endgame requires.

Three empties is rarer, and mostly unnecessary. The marginal value of the third empty over the second is smaller than the marginal value of the second over the first, because most multi-step moves only need two staging columns. Players who chase three empties often sacrifice other structure to generate the third and end up worse off. Treat two empties as the practical ceiling, and use the effort you would have spent on a third to instead expose more face-down cards.

Two traps account for most empty-column losses. Both feel harmless and both kill win rate.

Trap one: filling an empty with a single card that then blocks you. You create an empty, drop a Queen into it because it was awkward elsewhere, and then discover two moves later that you needed the empty for a King that was holding up an entire cascade. The Queen-filled column now requires a Jack of matching suit to unblock, and no Jack is available. The empty is gone, and the cascade never happens. The preventive habit is to treat every empty as reserved until you can name the specific multi-step purpose that justifies filling it.

Trap two: burning empties on short-term wins. You have an empty, and you can use it to deliver a completed run to the foundation right now. Delivering a run feels good. But if the delivery is not load-bearing — if the run could wait two turns and still reach the foundation — you have spent an empty for a tempo gain that was going to be yours anyway. The preventive habit is to ask whether the foundation delivery requires the empty right this turn, or whether it can wait.

Both traps share the same underlying mistake: treating the empty column as a resource that exists to be spent, rather than as infrastructure that exists to enable. Spend empties on specific, named purposes. Do not spend them because spending feels productive.

A third, subtler trap: burning an empty to clear a “mess” that is not actually blocking you. Late in a hand, a column full of mixed-suit runs can look unsightly, and the urge to tidy it with an empty column's help is strong. Resist. If the mess is not blocking a specific cascade or foundation delivery, leave it alone. Ugly tableaus win games routinely; neat tableaus without empty columns lose them.

Planning with empty columns means looking further ahead than you otherwise would. Without empties, you plan one or two moves ahead because there is limited slack. With empties, you can plan five or six moves ahead, because each empty extends the space of legal moves. That lookahead is where Spider becomes a thinking game.

A lookahead protocol we teach at the Strategy Desk: when you have an empty and you see a potential use for it, map out three possible futures. Future A uses the empty immediately. Future B uses the empty two turns from now after a preparatory move. Future C holds the empty for the deal. Compare the three futures on the metric of how many total cards get exposed or delivered over the next five moves. The winner is usually the lookahead that delays the empty's use until its maximum impact.

Delay is the default. When in doubt, hold the empty open for another turn. Patience with empties is the single biggest behavioral change that separates intermediate players from strong ones. Intermediate players panic and fill. Strong players wait.

The stock deal complicates planning. Remember that you cannot trigger a deal while any column is empty. That rule is both a constraint and a tool. It is a constraint because if you are carrying two empties and need to deal, you must first fill both empties, which costs you the optionality you spent so much effort to generate. It is a tool because empty columns are a built-in delay mechanism — as long as they exist, the stock cannot force new cards onto you.

The tactical play is therefore to use empties to buy time when the tableau is not ready for a deal, and to consolidate empties into a specific useful shape before filling them to trigger one. If you hold two empties and need to deal, do not fill them arbitrarily. Put a King in one (it is the card least likely to hurt you on that column) and a card that starts a potential run in the other. That way the pre-deal fills are themselves productive, rather than dead placements.

An empty column is technically universal, but in practice empties can be tactically locked to a specific suit because of the plans you have elsewhere. If you are assembling a King-to-Ace run of Spades and your empty is earmarked as the home for that run once you begin the final assembly, then any other card you drop in the empty breaks the plan. In that situation the empty is suit-locked to Spades.

Recognizing a suit-locked empty is a subtle skill. The empty is still universal in the rules, but in your head you have committed it to a future purpose and should treat it as off-limits to anything else. This is especially common late in a hand, when one or two same-suit runs are almost complete and need a staging column to finish assembling.

When an empty becomes suit-locked, label it mentally. Naming the commitment (“this empty is reserved for the Clubs run”) prevents the casual placement that would break the plan. Players who do not label their empties often sabotage their own late-game cascades by placing an unrelated King into the reserved column without noticing.

The inverse of suit-locking is situational locking. An empty can also be reserved for a specific card or specific move, regardless of suit: reserved for the King you need to relocate, reserved for the run you need to temporarily disassemble. Use whatever mental label fits the situation. The point is to stop treating empties as interchangeable commodities and start treating them as specific tools for specific jobs.

One last observation. Players sometimes ask whether it is better to have one empty that is flexible or two empties that are both suit-locked. In our experience, two suit-locked empties are still more powerful than one flexible empty, because the locks are in your head — you can always break a lock if the game requires it. The optionality that empties provide is never fully consumed by commitments you have made mentally; it is only consumed by cards you actually place in them.