Setup and opening position
The entire deck is dealt evenly into thirteen tableau piles of four, with no stock, cells, or foundations and no cards removed initially.
Ninety-One
Trigger four complete thirteen-card removals and clear all fifty-two cards.
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How to play
Trigger four complete thirteen-card removals and clear all fifty-two cards.
- The entire deck is dealt evenly into thirteen tableau piles of four, with no stock, cells, or foundations and no cards removed initially.
- Move one exposed top card from any nonempty pile onto any different pile. After each move, if all thirteen piles remain nonempty and their exposed ranks total ninety-one, those thirteen tops are removed simultaneously; the check repeats if the newly revealed tops also total ninety-one.
- Trigger four complete thirteen-card removals and clear all fifty-two cards.
Strategy tips
- Track the exposed total and use destination piles to postpone selected cards while revealing ranks that move the sum toward ninety-one without emptying a source.
- The removal requires all thirteen piles to be occupied; emptying a pile prevents the ninety-one check even when the visible ranks elsewhere have the desired sum.
- Plan the final two layers together so the third removal reveals a complete thirteen-pile total of ninety-one for the automatic last clearance.
Complete guide
Rules, scoring, and strategy
Ninety-One is a complete browser implementation with its own versioned rules profile. Redistribute top cards among thirteen four-card piles so all thirteen exposed ranks repeatedly sum to exactly ninety-one.
Legal moves and game flow
Move one exposed top card from any nonempty pile onto any different pile. After each move, if all thirteen piles remain nonempty and their exposed ranks total ninety-one, those thirteen tops are removed simultaneously; the check repeats if the newly revealed tops also total ninety-one.
Winning and terminal positions
Trigger four complete thirteen-card removals and clear all fifty-two cards. Plan the final two layers together so the third removal reveals a complete thirteen-pile total of ninety-one for the automatic last clearance.
Practical strategy
Track the exposed total and use destination piles to postpone selected cards while revealing ranks that move the sum toward ninety-one without emptying a source. The removal requires all thirteen piles to be occupied; emptying a pile prevents the ninety-one check even when the visible ranks elsewhere have the desired sum.
Questions players ask
What is the objective in Ninety-One?
Trigger four complete thirteen-card removals and clear all fifty-two cards.
Which moves are legal in Ninety-One?
Move one exposed top card from any nonempty pile onto any different pile. After each move, if all thirteen piles remain nonempty and their exposed ranks total ninety-one, those thirteen tops are removed simultaneously; the check repeats if the newly revealed tops also total ninety-one.
What should I plan first in Ninety-One?
Track the exposed total and use destination piles to postpone selected cards while revealing ranks that move the sum toward ninety-one without emptying a source.