What are the rules of Accordion Solitaire?

Deal all 52 cards in a single row, face-up. You can move a card onto the card 1 position to its left or 3 positions to its left if they share the same suit or rank. When a card is moved, the row compresses (closes the gap). The goal is to compress all 52 cards into a single pile. That's it — simple rules, nearly impossible execution.

What is the win rate for Accordion Solitaire?

Accordion has a win rate well under 1% — it is the hardest commonly played solitaire game. The vast majority of deals are mathematically unsolvable. Even with perfect play (computer analysis), most random shuffles cannot be compressed into a single pile. Winning is an extraordinary achievement.

Why is Accordion Solitaire so hard?

Accordion is hard because the matching rules (same suit or rank, distance 1 or 3 only) are extremely restrictive. Most cards in a random shuffle won't match their neighbors. Early moves that seem good can eliminate cards that would have been critical later. And there are no redeals, no stock pile, and no second chances.

What is Accordion Solitaire also called?

Accordion Solitaire goes by many names: Idle Year (because you could play for a year without winning), Methuselah (referencing the longest-lived biblical figure), Tower of Babel, and sometimes simply Squeeze or Compression. The name "Accordion" comes from the visual compression of the row, like an accordion bellows being squeezed.

Is there a strategy for Accordion Solitaire?

Limited strategy exists because most deals are unsolvable. The main principle: when you have multiple possible moves, prefer the compression that moves cards to the left (reducing the row length faster). Look ahead to see if a move creates or blocks future compressions. And prefer distance-3 compressions over distance-1 when both are available, as they reduce the row more aggressively.

What is Accordion Easy?

Accordion Easy is a relaxed version that expands the matching distances or relaxes the matching rules (e.g., allowing moves to positions 1, 2, or 3 to the left). This increases the win rate to 5–15%, making it significantly more achievable while keeping the satisfying compression mechanic. Try it as a stepping stone before the classic version.

How to Play Accordion Solitaire — Rules, Strategy & Tips

Accordion Solitaire is the hardest commonly played solitaire game — with a win rate under 1%, most deals are mathematically impossible to solve. Also called Idle Year (because you could play for a year without winning), it has the simplest rules of any solitaire game paired with the lowest odds of victory.

Despite the brutal difficulty, Accordion has a devoted following. There's something deeply satisfying about watching a long row of cards compress down, pile by pile — and on the rare occasion everything lines up, winning feels genuinely miraculous.

Accordion Solitaire Setup

Accordion uses one standard 52-card deck. The setup couldn't be simpler:

Deal all 52 cards face-up in a single row from left to right.

That's it. No columns, no stock pile, no foundations. Just a row of 52 cards.

In practice, the row wraps across multiple lines on screen (or on a table), but the positions are still numbered 1 through 52 from left to right.

How to Play Accordion Solitaire — Step by Step

Step 1: Scan the row

Starting from the left, look for cards that match the card 1 position or 3 positions to their left. A match means sharing the same suit (both Hearts) or the same rank (both 7s).

Step 2: Compress

When you find a match, move the right card onto the left card. The right card lands on top, forming a pile. The row compresses — the gap closes, and all cards to the right shift left to fill the space.

Step 3: Check for chain reactions

After a compression, the card positions change. A card that was 4 positions away is now 3 positions away (or 2 becomes 1). Check for new matches created by the compression — chain reactions are how you make real progress.

Step 4: Keep compressing

Continue finding and making compressions. When a pile is moved, the entire pile moves (you compare the top card of each pile). The goal is to compress all 52 cards into a single pile.

Step 5: Accept defeat gracefully

When no more compressions are possible and you have more than one pile remaining, the game is over. With a sub-1% win rate, this is the expected outcome.

Matching Rules

Rule	Description	Example
Same suit at distance 1	Card matches the suit of the card immediately to its left	Position 5 (♥7) → Position 4 (♥J) ✓
Same suit at distance 3	Card matches the suit of the card 3 positions to its left	Position 8 (♠3) → Position 5 (♠K) ✓
Same rank at distance 1	Card matches the rank of the card immediately to its left	Position 5 (♥7) → Position 4 (♣7) ✓
Same rank at distance 3	Card matches the rank of the card 3 positions to its left	Position 8 (♠3) → Position 5 (♦3) ✓

Accordion Solitaire Strategy Tips

Strategy in Accordion is limited because most deals are unsolvable. But when you do have choices, these principles help:

1. Prefer distance-3 moves over distance-1

A distance-3 compression shifts more cards leftward, creating more new adjacencies and therefore more potential chain reactions. When you have a choice between a distance-1 and distance-3 compression, the distance-3 move usually creates better opportunities.

2. Look ahead before moving

Before making a compression, check what the resulting row will look like. Does the compression create new matches? Does it destroy a match you could have made next? A move that creates a chain reaction is worth much more than an isolated compression.

3. Compress from the left

When multiple compressions are available across different parts of the row, prefer the leftmost one. The left side of the row is where compression accumulates — building a large pile on the left is progress toward the goal.

4. Suit matches are more valuable than rank matches

A suit match connects cards that are more likely to continue matching (same suit appears 13 times in a deck). Rank matches connect just 4 cards. When you have a choice, suit-based compressions tend to create longer chains.

Accordion Variants

Variant	Rule Change	Win Rate
Accordion Classic	Original rules, no modifications	<1%
Accordion Easy	Relaxed matching distances	5–15%
Accordion (Standard)	Default site version	~1%

Why People Love Accordion

Accordion Solitaire doesn't sound appealing on paper — simple rules, terrible odds, short games that usually end in failure. But its fans are devoted, and for good reasons:

Meditative quality: Scanning the row, looking for patterns, making small compressions — it's absorbing without being stressful. Losing doesn't sting because it's expected.
The rare win: When everything aligns and the row compresses down to a single pile, it's one of the most satisfying moments in solitaire. The rarity makes it special.
Quick games: Most Accordion games last 2–3 minutes. You can play 20 games in an hour, making it an excellent break-time game.
Zero setup complexity: Deal 52 cards in a row. No columns, no tableau, no foundations. The simplest setup of any solitaire game.

Ready to try? Play Accordion Solitaire free online → Start with Accordion Easy for a gentler introduction, or go straight to Accordion Classic for the unmodified original.