Four-Color Slide Guide: Track Transfers and Target-Card Planning
This is not a whole-row sliding puzzle. Each vertical track holds up to six discs, and only an exposed top disc can move sideways. The final four columns must match the target card from top to bottom, so solve it like an ordering problem with limited containers.
Understand the rules first
Move only the exposed top disc of a track, and only into a track with free capacity. The final four discs in each track must match the target color and order exactly. Fewer transfers produce a stronger result.
Controls and observation
Tap the top disc in a source track and then its destination, or drag sideways where supported. Before moving, inspect the lowest unfinished target position because early discs sink below later ones and become harder to recover.
Strategy by difficulty
Beginner
Work on one target column and plan from its bottom color upward. If the required disc is buried, distribute the covering discs into tracks with room, extract the target, and place it immediately in the correct column.
Intermediate
Never fill every track at once. Preserve one buffer track or at least two free slots to reverse buried order. Treat a correct consecutive segment at the bottom as locked and avoid disturbing it unless no legal plan remains.
Challenge and mastery
Work backward from the bottom of all four target columns and prioritize the hardest disc to expose. Prefer transfers that reveal useful discs for several columns. Near completion, count remaining discs and free slots before committing, so the final disc always has a destination.
A reliable solving routine
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Read the bottom-up target gaps in all four columns.
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Choose an exposed disc that fills a gap or releases a critical buried disc.
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Protect locked bottom segments and retain buffer capacity.
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Recalculate exposed discs after every transfer instead of following an outdated plan.
Common mistakes
- Building targets top-down even though the first disc sinks to the bottom.
- Filling all tracks too early and losing all reordering space.
- Breaking a correct bottom segment to gain a temporary local match.
Practice advice
On early levels, ignore the move record and explain every transfer as placement, exposure, or buffering. After solving, replay and remove unnecessary back-and-forth moves.
Quick answer
This is not a whole-row sliding puzzle. Each vertical track holds up to six discs, and only an exposed top disc can move sideways. The final four columns must match the target card from top to bottom, so solve it like an ordering problem with limited containers. Use this as the main decision rule: before every action, say what constraint it satisfies and what future option it preserves.
A worked attempt: think before acting
A useful first-pass approach is: work on one target column and plan from its bottom color upward. If the required disc is buried, distribute the covering discs into tracks with room, extract the target, and place it immediately in the correct column. After that move, pause and compare the actual state with the one you predicted. If they differ, correct the model before adding more actions.
Now test the opposite of a common failure: building targets top-down even though the first disc sinks to the bottom. Instead of repeating that pattern, undo to the first decision that created it and choose the move that leaves more legal continuations. This turns an apparent mistake into a reusable solving example.
How the difficulty curve changes
Early levels isolate one rule so the result of each move is easy to see. Intermediate levels combine two rules and make move order important. Challenge levels add look-alike states, tighter space, or longer dependencies. Mastery means explaining why a move is safe, not merely remembering a solution.
For a new level, use three passes:
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Map: identify fixed goals, movable parts, forbidden states, and scarce spaces.
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Plan: choose one short milestone that can be checked immediately.
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Verify: after reaching it, confirm that the next milestone remains possible.
Frequently asked questions
What should I focus on first in Four-Color Slide?
Start with the most restrictive rule described at the top of this guide. Forced moves, narrow corridors, limited capacity, or unique candidates reduce the search space fastest.
What is the most common reason a valid move becomes a bad move?
A move can be legal now but destroy a future option. The warning sign in this puzzle is: building targets top-down even though the first disc sinks to the bottom. Check the state one or two actions ahead before committing.
How do I know whether I am improving?
Track one measure at a time: fewer restarts, fewer undos, lower move count, better accuracy, or the ability to explain each choice. A faster time is meaningful only when correctness stays stable.
Are the daily and shared challenges different from ordinary levels?
They use the same game rules. The daily challenge provides a date-based common puzzle, while a challenge link preserves a specific level or state so two players can compare decisions on equal terms.
Key terms
- State: all information needed to determine the next legal actions.
- Constraint: a rule that eliminates impossible choices.
- Look-ahead: predicting the result of one or more actions before making them.
- Dead end: a legal-looking state from which the goal can no longer be reached.
- Efficiency: useful progress per move rather than motion for its own sake.
A deliberate practice routine
Play once without worrying about score. On the second attempt, stop at the first uncertainty and state two candidate actions. Predict the consequence of each, choose one, and use undo only to test the prediction. On the third attempt, aim to remove one unnecessary reversal or guess.
Use the daily challenge for transfer: it prevents you from memorising only a fixed level sequence. Use shared challenges for explanation: send the exact puzzle, compare the first point where your routes differ, and discuss which future option each move preserved.