♠Why Spider rewards different skills
Spider Solitaire looks like a cousin of FreeCell and Klondike, but it rewards a fundamentally different kind of thinking. In FreeCell every card is visible from the start, and the game is a pure logic puzzle with a handful of parking slots. In Klondike you cycle a stock pile and juggle alternating colors across seven columns. Spider hands you something closer to a building project: two decks of cards, ten tall columns, fifty cards waiting to drop from the stock, and a single goal that you have to engineer rather than navigate toward.
The difference shows up in what wins a game. FreeCell rewards precise supermove arithmetic. Klondike rewards patience with the stock cycle. Spider rewards space. Every decision a skilled Spider player makes is really a decision about the shape of the tableau two or three deals from now. Can we clear a column before the next deal lands? Can we keep a same-suit run intact while we hunt face-down cards? If we open this column, does it stay open? Those questions sit on top of the familiar card-by-card choices, and that extra layer is where Spider stops feeling like a variant and starts feeling like its own game.
♥The two-deck puzzle
Understanding Spider starts with counting pieces. The game uses two full decks shuffled together — 104 cards total, eight copies of every rank, with suit distribution that depends on the difficulty mode. At the deal, 54 of those cards land on the tableau across ten columns: the first four columns hold six cards each, the remaining six columns hold five cards each. Only the top card of every column is face-up. The other 44 are hidden.
The stock pile holds the remaining 50 cards, and it dispenses them in strict batches. Each time you trigger a deal, the stock drops one card onto every column. That means the stock contains exactly five deals of ten cards each. Once those five deals are gone, no new cards ever enter the tableau. Every game of Spider is therefore a finite resource problem: you start with 54 visible placements, you receive five forced injections of ten cards, and you have to assemble eight complete King-through-Ace runs out of what is in front of you.
The foundations are another place Spider breaks the usual pattern. You do not build foundations card by card. Instead, when a complete same-suit King-to-Ace run appears on a column, the entire run is removed as a single block. Eight such removals end the game in victory. That rule has a large strategic consequence: foundations are not a safety valve you can use to park awkward cards early. They are the final delivery of work you have already done on the tableau. Until you have assembled thirteen cards of the same suit in descending order, nothing goes to the foundation. Every foundation event is really a column-clearing event.
Put those three rules together — 104 cards, five forced deals, run-based foundations — and Spider becomes a game about staging. Your job at any given moment is to protect the work you have already done (the same-suit runs you have assembled), expose more work to do (the face-down cards under those runs), and keep enough empty space to absorb the next deal without losing your structure. Every Spider mistake traces back to misjudging one of those three pressures.
The column geometry is worth pausing on. Ten columns sounds like a lot of space, but after the fifth deal the tableau carries 104 cards spread across those ten slots. The average column depth late in the game is ten cards or more. That density is why empty columns are precious: without them, the tableau has no flex, and any move you want to make runs into the wall of another tall column. The whole game is really a fight to keep at least one column short enough that the rest of the board can breathe.
♦The four strategic pillars
Every Spider decision answers to one of four competing priorities. When players stall, it is usually because they are optimizing for one pillar while ignoring the other three. Reading Spider like a strategist means feeling all four at once and knowing which one to privilege in a given position.
Pillar 1: Column depth — exposing hidden cards.
Forty-four face-down cards start the game. Every face-down card is a question you cannot answer yet, and answered questions are what let you plan. The first pillar is therefore uncovering cards. Moves that peel a card off the bottom of a column are paid for in information, and that information usually pays for itself across the next ten turns. The shortest columns at deal time — the six five-card columns — are the cheapest information you can buy.
Pillar 2: Same-suit building — protecting movable runs.
In Spider you can lay a descending card on any other descending card of any suit. But only a same-suit descending run can be picked up and moved as a group. That single rule is the entire reason Spider is harder than it looks. A mixed-suit run is frozen — it can only move one card at a time. A same-suit run is a lever. The second pillar is protecting same-suit structure once you build it and avoiding moves that cross a suit boundary unnecessarily.
Pillar 3: Empty-column creation — the space dividend.
Every empty column is an unlocked door. Any card or any same-suit run can land on an empty column, which means empties multiply your move options. A Spider tableau with two empty columns is a different game than the same tableau with zero. The third pillar is about manufacturing empties and refusing to fill them casually. We return to this pillar in detail in our column-clearing framework below and in the Spider Column Tactics pillar.
Pillar 4: Stock-deal timing — when to accept the injection.
The deal button is always available once every column has at least one card, but that does not mean every moment is equal. A deal lands ten new cards on top of your existing columns, potentially burying runs you just finished building. The fourth pillar is knowing when a deal helps you (you are stuck and need new material) and when it hurts you (you are about to empty a column and would prefer the current cards stay exposed). Good Spider players deal with intent. Beginners deal because they are out of ideas.
The pillars do not operate independently. They trade off. A move that exposes a face-down card might cross a suit boundary and freeze a run. A move that protects a same-suit run might cost you an empty column. A deal that rescues you from a stuck position might bury three face-downs you were about to expose. Every Spider decision is really a weighted comparison of pillar priorities, and the weights shift as the game progresses. Early-game tilts toward pillars one and two (information and structure); mid-game tilts toward pillar three (space); endgame tilts toward pillar two again (clean runs to deliver to foundations). Recognizing which pillar the current position most needs is the meta-skill.
♣Opening principles
Spider openings look deceptively simple because only ten cards are face-up. That surface simplicity is a trap. The first fifteen moves of a Spider game set the distribution of empty columns, same-suit runs, and exposed cards that will shape every subsequent turn. A loose opening produces a position where the first deal is a disaster. A disciplined opening produces a position where the first deal clarifies the board.
We open Spider with three tasks in priority order. First, scan the ten face-up cards for same-suit connections. If a Ten of Spades sits on one column and a Nine of Spades sits on another, that pair is the beginning of a same-suit run and should be joined as soon as it is safe to do so. Finding these latent connections is the single most important opening move because it builds the first lever of the game.
Second, identify which columns can be shortened fastest. Columns with small top cards (low numbers) are usually easier to empty because low cards migrate to the tops of other columns more readily. Columns with Kings at their base are harder to clear because a King cannot go anywhere except on an empty column. A five-card column with a Two on top is far more promising than a five-card column with a Jack on top.
Third, set up cascades. A cascade is a sequence of moves where each move creates the condition for the next. If moving the top of column 7 onto column 3 exposes a card that lets us then move column 4 onto column 7, we have staged a two-move chain that turns one opportunity into two. Good openings are chains. Bad openings are one-offs that leave the board structurally identical to where it started except with cards shuffled around.
A quick opening checklist we use at the Strategy Desk: name the two same-suit connections visible on the tableau, name the two shortest columns, name one face-down card you expect to expose in the next three turns, and name one column that is a candidate for emptying. If you can answer all four before your first move, you are opening Spider correctly. If you cannot, you are about to make a random-feeling move that will haunt the mid-game.
Opening move order matters too. Make the irreversible moves first — the ones you cannot undo without disrupting other plans. Moves that expose face-down cards are irreversible, so they often go first. Moves that merge two same-suit cards into a starter run are semi-permanent and usually second. Moves that fill empty space are last, because filling empties commits you to a board shape, and you want to know what shape you need before committing. Think of the opening as staging, not executing: you are preparing the tableau to do work, not doing it yet.
♠The column-clearing framework
Empty columns are the single most valuable resource in Spider. This is not a casual claim. We mean it arithmetically. A free cell in FreeCell holds one card. An empty column in Spider accepts any card and any same-suit run of any length. That asymmetry compounds every turn the column stays open.
The mechanism is straightforward. When you need to move a same-suit run but the destination column blocks you, an empty column becomes the temporary home that frees the run to travel later. When you need to expose a face-down card and the column above it is full of mixed-suit junk, an empty column lets you offload the junk one card at a time without destroying other structure. When the stock deal lands and a key King comes off the top, an empty column absorbs it without wrecking a neighbor. Empty columns are not just convenience — they are the infrastructure that makes complex Spider plays possible.
Creating an empty column starts with the column you are going to empty, not the move you want to make. Pick the target column first. Usually this is the column with the fewest cards and the smallest face-up card at its base, which minimizes the number of cards you need to place elsewhere. Then walk backwards: for each face-up card on the column, identify where it will go. If a card has no destination, ask whether you can create one by rearranging another column first. If multiple cards share a destination, you will need a chain.
The second skill is defending empties. Once a column opens, beginners fill it immediately — usually with a King or a single card they wanted off their hands. That is almost always a mistake. An empty column with one King in it has already lost most of its value. The whole point of the empty is optionality; filling it commits you to that one card. The right question is: what is the minimum commitment this empty column can absorb to still serve as a staging area? The best answer is frequently "nothing" — keep the column open for another three moves and use it as overflow until you have to commit.
There is a rule of thumb we call the two-empty threshold. If you can engineer the tableau to have two empty columns at once, Spider gets dramatically easier because you can move any same-suit run or King-headed stack around without blocking yourself. Reaching two empties is the milestone that turns a mid-game into a winning position in most hands. Most lost Spider games are lost because the player never generated a second empty column and kept bashing against a single-column bottleneck.
For a deeper treatment of empty-column tactics, see our Spider Column Tactics pillar — it unpacks the full column-clearing playbook including traps to avoid when filling empties.
♥Stock management
The stock pile in Spider is fixed: 50 cards, five deals, no more. Unlike Klondike, there is no recycling. Every deal is a one-way injection of ten cards. The central stock-management question is not whether to deal, but when — and that question matters because a deal can either clarify or wreck the tableau depending on the state you deal into.
The ground rule in Spider is that you cannot deal when any column is empty. The engine enforces this because a deal injects one card per column, and empty columns would simply skip and break the game. That rule is a strategic lever. If you are sitting on an empty column and you want to keep it open, you are safe from an accidental deal. If you are trying to deal, you first have to fill every empty column, which often means committing a card you did not want to commit.
We deal when the tableau is stuck — no productive moves left, no face-down cards you can peel without making things worse, and the runs you have built are stable enough that new cards on top of them will not scramble them beyond recovery. We hold the deal when we are mid-cascade, when we are one or two moves from opening a column, or when the current tableau is fragile enough that burying it under ten new cards would lose the progress we have already made.
The five-deal countdown matters because each deal costs a specific thing: visibility. Right before the last deal, you ideally want every face-down card exposed, because new cards will land on top and potentially re-bury work you thought was done. A common intermediate-player mistake is racing through the first two deals out of habit and arriving at the fifth deal with half the original face-downs still hidden — the final injection almost always buries them permanently. Pacing the five deals so each one lands on a clean or semi-clean tableau is one of the skills that separates 10% players from 40% players.
A reasonable tempo for the five deals: deal one after the first round of exposure work, when you have roughly a third of the initial face-downs cleared and at least one same-suit pair connected. Deal two after another round of reorganization, ideally when you have opened your first empty column. Deal three should land on a tableau where most early face-downs are visible and at least two columns are substantially shorter than average. Deal four is the pre-endgame deal — take it when you are close to having all face-downs exposed, because deal five is about to force you into closing mode. Deal five is always a calculated hit; take it when there is nothing left to prepare.
♦Reading the tableau
Reading a Spider tableau means seeing more than what is on it right now. It means recognizing which runs can still move, which face-down cards are likely to be helpful versus awkward when they are revealed, and how a potential stock deal will reshape the current picture. Most recovery plays begin with a correct read.
Start with movable runs. Identify every descending same-suit run of length two or more, and mark them as movable assets. Then identify every descending mixed-suit run — these are frozen. You can add a card to a mixed run, but you cannot pick it up. Confusing movable with frozen runs is the single most common mid-game error in 2-suit and 4-suit Spider.
Next, track hidden cards. With 44 face-downs at deal time, a skilled Spider player keeps a rough running estimate of how many of each rank are still hidden. You do not need to track every card. You need to know whether the remaining Kings are probably buried deep or likely to show up on the next deal. Late-game recovery often depends on a read like "there is probably one more Six of Hearts still under that column, so clearing this run now is premature."
Finally, predict the deal. Before triggering a deal, look at the top card of each column and imagine a random card landing on top. Which landings would wreck you? Which would help? If the wreck scenarios dominate — for example, most tops are mid-rank cards with no plausible higher card that could land cleanly — delay the deal, or rearrange the tops so the deal has a better chance of landing productively. You do not control which cards come out, but you control which landing pad they meet.
Tableau reading is also a defense against tunnel vision. It is easy to fall in love with a specific plan — finishing one same-suit run, for example — and ignore the position of the other nine columns. The habit we train at the Strategy Desk is a full-tableau scan before every fourth or fifth move: step back, look at the entire board, and ask whether the move sequence you are about to execute is still the best use of the position. Often it is not; often there is a cheaper move on a column you have not been watching.
♣Endgame transitions
The Spider endgame begins after the fifth and final stock deal. From that point forward, no new cards enter the game, and every decision is about combining the cards that are already visible into eight complete runs. The endgame has three characteristic states: winning, losing, and recoverable. Recognizing which one you are in is the first move.
A winning endgame looks like this: most face-down cards are exposed, at least two empty columns are available, and most of your same-suit runs are partially assembled — not complete, but staged so the remaining cards have obvious destinations. From here, execution is mostly arithmetic. Count the moves required to finish each run, sequence them in an order that does not block itself, and drive forward.
A losing endgame is the opposite: multiple face-down cards still buried, no empty columns, mixed-suit junk on top of your runs, and no way to reorganize without dismantling work. Losing endgames rarely recover. The correct response is to identify the move sequence that would be required to recover, recognize that it is not available, and start a new game with the lessons from this one.
Recoverable endgames are the interesting case. You are stuck but not broken. The recovery playbook has three moves: look for a swap that temporarily trades a mid-game advantage for access to a buried card, accept one short-term sacrifice to generate one empty column, and recompute the remaining runs from scratch. Many recoverable endgames are won by noticing that a partially assembled same-suit run of four cards can be temporarily broken to free a critical low card — the broken run reassembles three moves later on a different column and the sacrifice nets you a win.
Transitioning between states is the skill. A game can move from winning to recoverable in two bad moves, and from recoverable to losing in another two. The way to hold a winning endgame is to stop making aggressive plays once the outcome is determined — just finish each run in sequence, one foundation event at a time, and do not introduce unforced complexity. The way to climb out of a recoverable endgame is to slow down, re-scan the whole tableau as though you were seeing it for the first time, and look for the unorthodox move — the one that breaks a run, empties a column, or reshapes a tableau you have been treating as fixed.
♠The ten Spider mistakes
Across thousands of Spider hands at the Strategy Desk, ten errors account for most losses. Most of them are small enough to escape notice until the deal that punishes them arrives.
- Crossing suits unnecessarily. Placing a descending card of a different suit on top of a same-suit run freezes the run in place. Only do it when the move is load-bearing.
- Filling an empty column with one card. An empty column is infrastructure. One card in it is usually a commitment you will regret.
- Dealing out of impatience. If you are out of moves, deal. If you still have productive moves, resolve them first.
- Ignoring face-down cards. Every face-down card is a future problem. The longer you postpone uncovering it, the worse the late game gets.
- Assembling runs you cannot complete. A same-suit run of six cards is useless if the Seven you need is double-buried. Check the path before committing.
- Building mixed-suit chains too long. A mixed chain of eight cards is an anchor. Keep chains short unless the chain itself is load-bearing for a cascade.
- Moving Kings prematurely. Kings only go on empty columns. Placing a King there permanently costs you the empty until the King is moved again — which might be never.
- Forgetting the two-card constraint. Mixed-suit runs can only move one card at a time. Plan mixed-run moves as a sequence, not a single action.
- Dealing into a fragile tableau. If ten random cards on top of your columns would wreck you, delay the deal and reshape the tops first.
- Declaring dead too early. Spider tableaus that look hopeless often have one cascade hidden in them. Walk the board once more before restarting.
If you internalize one heuristic from this list, make it the fifth one: before you assemble a same-suit run, verify that the remaining cards in the run are reachable. Spider players lose hundreds of games building elegant five-card runs that then freeze because the matching Six or Seven is permanently buried under a King. The lesson is to treat every same-suit run as a hypothesis that you will need to pay for later. If the payment is not affordable, do not start the run. Trust that the cards you need to pay will be exposed by pillar one work (face-down exposure) in due time.
The other mistake that deserves its own paragraph is mistake nine: dealing into a fragile tableau. Every deal is permanent. You cannot undo a deal once it lands, and the cards it drops are distributed randomly across your ten columns. If your current tops are mostly low-to-mid cards with same-suit runs beneath them, a deal can bury your runs under unplayable high cards that will sit there until you chip them off one by one. The defense is always the same: before dealing, look at the top of every column and ask “if a random card landed here, would I still have a plan?” If the answer is no for more than three columns, delay.
♦Frequently asked questions
What is the single biggest skill in Spider Solitaire?
Empty-column discipline. Empty columns in Spider function like free cells in FreeCell, except they can hold entire same-suit runs rather than single cards. Players who learn to create, defend, and deploy empty columns add more to their win rate than any other habit.
How many cards and decks are used in Spider Solitaire?
Spider uses two standard 52-card decks shuffled together for a total of 104 cards. 54 cards are dealt into 10 tableau columns (the first four columns get 6 cards each, the remaining six get 5 each). The remaining 50 cards form the stock, which deals out in five rounds of 10 cards each.
Why is Spider harder than Klondike if you can see more cards?
Spider exposes only 10 cards face-up at the start (one per column) and buries 44 more face-down in the tableau, with another 50 in the stock. The compression of two decks into a fixed five-deal stock means luck has a higher weight than in Klondike's recyclable 24-card stock. 4-suit Spider's winnable ceiling sits in the 30-40% range even under optimal play.
When should I deal from the stock in Spider?
Deal when the tableau is genuinely stuck, all productive face-down reveals are exhausted, and your existing same-suit runs are stable enough to survive ten new top cards. Never deal while you still have empty columns you want to preserve, and never deal when you are one or two moves away from opening a column.
Should I always build same-suit in Spider Solitaire?
Same-suit is the goal because only same-suit runs can be moved as groups and only same-suit King-to-Ace sequences remove to the foundations. Off-suit stacks are sometimes necessary to expose face-down cards or create empty columns, but every off-suit move creates a knot you will later need empty columns to untangle.
Does Microsoft's version of Spider count as the canonical rules?
Microsoft bundled Spider with Windows ME in 2000 and Windows XP in 2001, popularizing the 1-suit and 2-suit variants which did not exist in the pre-digital tradition. The 4-suit rules are the historical ones dating to Games of Patience (1949). The 1-suit and 2-suit modes are Microsoft innovations that have since become standard across digital implementations.
♥Spider reading list
Jump into a game at the difficulty you want — 1, 2, or 4 suit.
The canonical rules primer — deal, movement, stock, and win condition.
The short-form strategy page for players who want the highlights.
Quick tactical tips that fit on a single screen.
How the three difficulty modes play as different games.
The deep dive on empty columns — creating, defending, and using them.
Play with the framework
The only way to internalize the four pillars is to use them. Start a hand, name the pillar you are prioritizing on each move, and see how your win rate shifts after twenty games.
