Sequence Shift
Difficulty: Medium-Hard
Players: 2–5
Age: 10+
Time: 20–30 minutes
Scoring: None in the basic game
Style: Sequence / shedding / strategy / table manipulation
Objective
Be the first player to get rid of all the cards in your hand by creating, extending and rearranging legal sequences on the table.
In Sequence Shift, every sequence must have at least two properties in sequence. In TIC terminology, the sequence must Duo or Tripo. Monos are not sufficient for this game.
Players may also connect sequences by creating horizontal and vertical intersections, allowing a single card to belong to two different sequences at the same time.
As the game develops, players can rearrange cards already on the table into new legal sequences to create places for cards from their own hand.
Setup
Shuffle the TIC deck.
Deal each player 12 cards.
Players keep their cards hidden from the other players.
Place the remaining cards face down in the centre as the draw pile.
There are no cards on the table at the beginning of the game.
Choose a starting player by any agreed method. Play proceeds clockwise.
Sequences in This Game
TIC cards have three properties that can sequence:
- number,
- shape,
- colour.
Numbers progress from 1 through 5.
Shapes progress from circle through crescent, triangle, square and star, increasing by one side at each step.
Colours progress from violet through cyan, yellow, orange and red, moving across the rainbow.
A property may sequence upward or downward. Different properties may sequence in different directions. For example, numbers could ascend while colours descend.
In TIC terminology:
- one sequencing property is a Mono;
- two sequencing properties are a Duo;
- three sequencing properties are a Tripo.
For Sequence Shift, only Duos and Tripos are legal table sequences.
Legal Sequences
A legal sequence must contain at least 2 cards, with at least two properties progressing consecutively from one card to the next.
For example, a Duo could have:
- number ascending and shape ascending;
- number ascending and shape descending;
- number descending and colour ascending;
- shape ascending and colour descending;
- or any other combination involving two sequencing properties.
If all three properties sequence, the sequence is a Tripo and is also legal.
The third property in a Duo does not have to follow a sequence.
In sequences of three or more cards, at least two of the same properties must progress consecutively, in consistent directions, throughout the entire sequence. The third property need not sequence in a Duo.
Consecutive Values
Properties must move one step at a time.
For example:
Numbers:
1 → 2 → 3 → 4 → 5
or
5 → 4 → 3 → 2 → 1
A number sequence such as:
1 → 3 → 5
is not legal.
The same rule applies to shapes and colours.
Sequences do not wrap around. For example:
4 → 5 → 1
is not legal.
Likewise, star does not continue to circle, and red does not continue to violet.
Opening Play
Before a player may use or rearrange cards already on the table, that player must make an opening sequence entirely from cards in their own hand.
The opening sequence must:
- contain at least 2 cards; and
- form a legal Duo or Tripo.
Once a player has successfully made an opening sequence, that player is considered open for the rest of the game.
A player may create more than one sequence using cards from their own hand on their opening turn, but may not use or rearrange cards already on the table until a later turn.
If a player cannot or does not wish to make an opening sequence, they draw one card from the draw pile and their turn ends.
The drawn card may not be played during the same turn.
Playing After You Have Opened
Once open, a player may play cards from their hand while creating, extending or rearranging legal sequences on the table.
During a turn, a player may:
- add cards to existing sequences;
- create new Duo or Tripo sequences;
- move cards between sequences;
- split or combine sequences;
- change which properties sequence within a line;
- create or remove intersections; and
- rearrange any number of table cards into a different legal arrangement.
There is no limit to the number of cards from a player’s hand that may be played during one turn.
If a player rearranges cards already on the table, they must successfully add at least one card from their own hand before completing the turn.
A player may not rearrange the table solely to make things easier or harder for another player.
Rearranging the Table
During a turn, a player may temporarily take apart existing sequences while working out a new arrangement.
Cards may be moved freely during the rearrangement.
Before the turn is completed, however:
Every card on the table must belong to at least one legal Duo or Tripo sequence containing at least 2 cards.
No card may be left by itself as an incomplete sequence, and no Mono may remain on the table.
Only the final arrangement matters. A player is therefore free to change the type, direction or composition of existing sequences as long as the completed table is legal.
If the player cannot produce a completely legal arrangement, the attempted play must be undone and the table returned to its arrangement at the beginning of the turn. The player then draws one card and their turn ends.
Players should therefore pay attention to the original table arrangement before beginning a complicated rearrangement.
Intersecting Sequences
Sequences may cross one another. One sequence is laid horizontally and another vertically. The card at the intersection belongs to both sequences.
Each sequence must independently:
- contain at least 2 cards; and
- Duo or Tripo.
The two intersecting sequences do not have to sequence using the same properties.
For example, the horizontal sequence might Duo using:
number + shape
while the vertical sequence might Duo using:
shape + colour.
The intersection card simply has to be the correct card for both sequences.
Intersection Rules
A card may belong to a maximum of two sequences.
If a card belongs to two sequences, one must run horizontally and the other vertically.
Diagonal sequences are not used.
Sequences may not branch. A card cannot simply have another card attached above or below it unless that card forms part of a complete vertical Duo or Tripo sequence of at least 2 cards.
These layout rules keep the sequences visually clear and make it easy to see which cards belong together.
Extending and Changing Sequences
A sequence may be extended from either end as long as the new card continues its sequencing pattern.
For example, if numbers and shapes are both progressing upward, a card added to either end must continue both properties correctly.
During a rearrangement, players are not required to preserve the original identity of a sequence.
For example, a number-and-shape Duo could be broken apart and its cards reorganized into a shape-and-colour Duo.
A rearrangement could also result in a Tripo if all three properties sequence in the completed line.
Only the legality of the final table arrangement matters.
Creating a New Sequence
A player may create a completely separate sequence anywhere in the play area.
A new sequence must contain at least 2 cards and must Duo or Tripo.
Its cards may come:
- entirely from the player’s hand; or
- from a combination of the player’s hand and cards already on the table, provided the player is already open.
A player may create more than one new sequence during the same turn.
Creating an Intersection
Instead of making a completely separate sequence, a player may use a card already on the table as part of a new intersecting sequence.
For example, a player could use an existing table card as one end of a new two-card vertical Duo by placing a compatible card immediately above or below it.
Alternatively, the existing card could serve as the middle card of a new three-card vertical sequence, with one card placed above it and another below it.
Because the intersection card already belongs to a horizontal sequence, only one additional card is needed to create a new two-card vertical sequence.
Both sequences must be legal at the end of the turn.
Intersections may also be created through more complicated table rearrangements.
Playing Multiple Cards
A player may play as many cards from their hand as they can legally place during one turn.
For example, a player might extend an existing Duo, rearrange some of its cards, create an intersection, and use that rearrangement to play several more cards from their hand.
There is no fixed limit as long as the final table arrangement is completely legal.
Finding combinations that allow several cards to be shed during one turn is an important part of the strategy.
Unable to Play
If a player cannot make a legal play, or chooses not to play, they draw one card from the draw pile.
Their turn then ends.
The drawn card may not be played until a later turn.
Winning
The first player to legally play all the cards from their hand wins.
A player may go out by playing one card or several cards.
The final play must satisfy the same table-legality rules as every other turn.
No special finishing sequence is required.
Variations
Simple Shift
Players may:
- create new sequences;
- extend existing sequences; and
- create intersections;
but may not rearrange cards already played.
This provides an easier introduction to the game.
Open Table
Players do not need to make an independent opening sequence before using cards already on the table.
As soon as any player has created the first legal Duo or Tripo, all players may use and manipulate table cards on subsequent turns.
This creates a more accessible and potentially faster version.
Strategy Tips
Look at All Three Properties
A card that appears useless in one sequence may be valuable when considered through another pair of properties.
Try not to see a card only in terms of the sequence it currently occupies.
Search for Intersections
Intersections are especially valuable because one table card can support two different sequences.
An existing card may allow you to create a new 2-card sequence using only two cards from your hand.
Don’t Become Attached to Existing Sequences
The current table arrangement is only one possible arrangement.
A long Duo may sometimes be more useful when broken into several shorter legal sequences.
Look for Chain Reactions
The strongest turns may begin with a small change.
Moving one card may allow another sequence to be rebuilt, freeing another card, creating an intersection and eventually allowing several cards from your hand to be played.
Preserve Useful Junction Cards
Cards that can participate in several different kinds of Duos may become strategically important. A card sitting at an intersection can be especially valuable because moving it may affect two sequences.
