Setup and opening position
All fifty-two cards form one face-up sequence with no stock, reserve, foundation, or redeal.
Decade
Remove the complete sequence through legal ten-multiple runs.
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How to play
Remove the complete sequence through legal ten-multiple runs.
- All fifty-two cards form one face-up sequence with no stock, reserve, foundation, or redeal.
- Choose a contiguous run of at least two exposed cards; in this profile the selectable run is bounded to four cards and removes only when its rank-value sum is divisible by ten.
- Remove the complete sequence through legal ten-multiple runs.
Strategy tips
- Evaluate overlapping two-, three-, and four-card windows, preferring a removal that creates a new valid boundary across the closed gap.
- Removing the first valid decade can join two remainders whose new boundary has no achievable ten-multiple window.
- Before the sequence becomes short, verify that its final two to four cards can form one legal total.
Complete guide
Rules, scoring, and strategy
Decade is a complete browser implementation with its own versioned rules profile. Delete contiguous card runs whose rank values total a multiple of ten from a single open sequence.
Legal moves and game flow
Choose a contiguous run of at least two exposed cards; in this profile the selectable run is bounded to four cards and removes only when its rank-value sum is divisible by ten.
Winning and terminal positions
Remove the complete sequence through legal ten-multiple runs. Before the sequence becomes short, verify that its final two to four cards can form one legal total.
Practical strategy
Evaluate overlapping two-, three-, and four-card windows, preferring a removal that creates a new valid boundary across the closed gap. Removing the first valid decade can join two remainders whose new boundary has no achievable ten-multiple window.
Questions players ask
What is the objective in Decade?
Remove the complete sequence through legal ten-multiple runs.
Which moves are legal in Decade?
Choose a contiguous run of at least two exposed cards; in this profile the selectable run is bounded to four cards and removes only when its rank-value sum is divisible by ten.
What should I plan first in Decade?
Evaluate overlapping two-, three-, and four-card windows, preferring a removal that creates a new valid boundary across the closed gap.