Clock Solitaire

TSBy The Strategy Desk·Published April 12, 2026

Clock Solitaire (also known as Clock Patience) is one of the most well-known patience card games in the world. Fifty-two cards are dealt face-down into a clock face pattern — 12 piles around the outside and 1 pile in the center. Flip a card, place it under the matching pile, and watch the clock come alive. With a win rate of exactly 1 in 13 (~7.7%), every victory is a celebration.

How Clock Patience Works

Deal 52 cards face-down into 13 piles of 4 cards each. Arrange 12 piles in a clock face (Ace at 1 o'clock through Queen at 12 o'clock) with Kings in the center. Start by flipping the top card from the center pile. Place it face-up under the pile matching its rank — then flip the top face-down card from that pile. Continue until all cards are face-up (you win!) or the 4th King is turned (game over).

A Game of Pure Chance

Unlike FreeCell or Klondike, Clock Solitaire involves no decisions whatsoever. The outcome is entirely determined by the shuffle. This makes it a wonderfully relaxing game to watch unfold — tap to advance each step or use auto-play to let the clock tick on its own.

History & Origins

Clock Patience, sometimes just called Clock, appears in Victorian-era patience compilations alongside the other “deal and flip” pure-luck games of the period. Its charm has always been the layout: twelve piles arranged in the hours of a clock face, with a thirteenth pile in the centre holding the Kings, turn the card table into a working clock. You do not plan, you do not choose — you simply turn the next card and watch the time assemble itself around you. This has made Clock a staple of grandmother-and-grandchild card sessions for over a century. It is frequently the first patience children learn because the rules fit on a napkin and the iconography — twelve numbered hours, four Kings as quarter-hour chimes — makes it a painless way to teach card values, suit recognition, and rank ordering. Many regional patience books also list Clock as a fortune-telling exercise: finish the clock and your wish comes true; fail, and try again tomorrow. The game’s persistence owes less to depth than to its irresistible visual rhythm.

Strategic Principles

The strategic discussion for Clock Solitaire is refreshingly brief: there is no strategy. Once the shuffle is complete the outcome is fully determined, and every flip is dictated by the algorithm. Our only role is to execute the placement rules faithfully — turn the centre pile’s top card, walk it to its hour position, tuck it beneath the pile, then turn that pile’s top card. Players sometimes fool themselves into thinking there is a choice when two piles have the same top card, but the rules give no flexibility: the card goes to its rank position and you flip whatever sits on top.

That said, Clock Patience earns its place in the family as a pedagogical tool. It is the game we reach for when a child is learning card values, because the payoff for correctly identifying a 7 is immediate: the 7 goes to the 7 o’clock pile. It also teaches rank-suit separation (suits are irrelevant, rank is everything) and the odd concept of the King as a clock’s centre rather than a position on the dial. For adults, the “strategy” becomes meta — we play Clock while talking to someone, while waiting for water to boil, while letting our hands keep rhythm during a podcast. It is a game of tempo and ritual rather than thought.

The one hidden skill, if you can call it that, is pacing. Dealing faster does not change the outcome but does change the experience; slowing down turns Clock into a meditative routine, while speeding up creates the suspense of a near-miss. Compare this to FreeCell, where every move is a decision — Clock is the opposite pole of the solitaire universe.

Difficulty & Win Rate

Clock Solitaire has a mathematically fixed win rate of exactly 1 in 13, or approximately 7.7%. That figure falls directly out of the game’s structure: the game ends the moment the fourth King is turned, and by symmetry any of the 52 cards is equally likely to be the last card turned — so the chance that the last card is the fourth King (meaning every other card was revealed first) is 1 in 13. Because there are no decisions to make, skill does not change the outcome. Good players and new players win at the same rate. This is one of the very few popular patience games whose win probability can be computed with a one-line argument.

That honesty matters: many solitaire apps advertise “strategy tips” for Clock, but those tips are illusory. If you win, the shuffle handed you the win. If you lose, the shuffle hid the Kings too shallowly. Enjoy Clock for its rhythm, not its challenge.

Common Mistakes

Because there is no strategy, “mistakes” in Clock Solitaire are procedural rather than tactical. The most common is placing a card on top of its pile instead of underneath, which breaks the flip sequence because you end up turning the card you just placed. The card must always go face-up beneath the existing four cards in its hour position. A second procedural mistake is stopping too early when a King appears at position thirteen: that King goes under the centre pile, you flip the next centre card, and play continues — only when the fourth King lands does the game end.

A third mistake, especially with children, is misreading the clock face positions: Ace represents 1 o’clock, Jack is 11, Queen is 12, and Kings live in the centre. Finally, some players mistakenly keep playing after all four Kings have appeared, thinking they can continue with the remaining face-down cards — the game is over at that point regardless of how many face-down cards remain. These are not strategy errors; they are simply rule slips that come from the hypnotic rhythm of the deal.

How This Game Compares

Clock Patience belongs to the pure-luck family of solitaire games — titles where the player executes a fixed algorithm and the shuffle decides the outcome. Its siblings in this family include Idiot’s Delight, Monte Carlo in its strictest form, and the deal-flip half of games like Pyramid when played without choice. Compared to strategy patiences such as FreeCell, Klondike, or Spider, Clock is an anti-strategy game: the joy is watching the clock assemble itself, not outsmarting it. Compared to other chance-heavy games like Cruel, Clock has an even smaller decision surface — Cruel at least lets you time your redeals.

Variant Notes

Several regional variants shift the numbers or break the tie with the Kings. Travellers uses the same deal-and-flip algorithm but changes the stopping rule, sometimes ending the moment a single position is complete. Watch is an English variant that replaces the twelve-hour clock with a different layout but keeps the rank-to-position matching. Some household rules allow the player to swap two piles at any point during the game, converting Clock into a primitive strategy exercise — a house-rule hack that marginally raises the win rate but loses the original’s pedagogical purity. Casinos have occasionally used Clock as a bar game with small wagers on whether the clock completes. In digital form, auto-play is the dominant modern variant: tap once and watch the clock tick through to its conclusion without lifting a finger.

Frequently Asked Questions

Learn More

• How to Play Clock Solitaire — Complete rules and history
• Clock Solitaire Strategy Guide — Tips and winning tactics
• Play Cruel Solitaire — A patience game with strategic redeals
• Play Accordion Solitaire — Compress-the-row patience
• Play FreeCell — The classic strategic solitaire
• Types of Solitaire — Explore 20+ solitaire variants