Every active turn begins with an absolute, non-negotiable step: you must draw one card from the center stock pile into your hand. Forgetting to draw before playing a card constitutes a procedural fault in strict play circles. Once that initial card enters your hand, you may make as many legal table moves as your cards permit.
The core mechanic relies on a descending sequence built with alternating red and black cards. A black Queen plays on a red King. A red Seven drops onto a black Eight. Suits carry no special priority; color and descending rank dictate legality. Aces operate uniformly as low cards ranking below Twos, meaning nothing can be built on top of an Ace within an active foundation pile.
Card placement splits across several distinct actions during a turn:
- Playing Hand Cards to Foundation Piles: You can play any valid card from your hand directly onto any of the four cardinal foundation piles, matching alternating colors in descending sequence.
- Opening the Corners: Whenever you hold a King, or uncover one during movement, you may place that King into any of the four empty diagonal corner spaces. Once established, these corner slots transform into active foundation piles following the exact same descending, alternating-color build rules.
- Filling Cardinal Gaps: If an original cross pile is completely cleared and moved elsewhere, the empty space can be claimed immediately by any single card from your hand, regardless of rank or color.
- Moving Entire Foundation Piles: You can lift an entire pile and place it atop another pile if the bottom card of your moving stack legally continues the descending, alternating-color pattern of the destination pile.
Shifting entire piles represents the most powerful maneuver in Kings in the Corner. If the North pile displays an Eight-to-Five run capped by a red Five, and the West pile shows a black Six, you can pick up the entire North pile and place it over the West pile. Doing so instantly clears the North space, creating an open lane where you can play any troublesome card directly from your hand.
Once you cannot make any further plays, or consciously decide to hold back specific tactical options, you announce the end of your turn by stating "Pass" or "Done." Play moves clockwise.
