FreeCell

Variant played: Four cells · grouped moves limited by free spaces · Version 1.0.0

Objective

Move all cards to the foundations using the free cells as temporary storage.

Setup

1. Deal all 52 cards face up into 8 columns: four columns of 7 cards and four of 6.
2. Four free cells and four foundations start empty.
3. No draw or redeal.

Turn or round flow

1. Move a card to a free cell, a foundation, or another column.
2. Move an alternating descending sequence if the number of cards can be carried with the available free spaces.
3. An empty column accepts any movable card or sequence.

Legal actions and obligations

• Tableau: descending rank, alternating colors.
• Foundations: same suit, Ace to King.
• Each cell holds one card maximum.
• Supermove capacity: (free cells + 1) × 2^(usable empty columns), subtracting the destination column if it is empty.

Score

• Win when all 52 cards are on the foundations.
• Optional score based on time and number of moves, with no currency.

End of game

• The game ends with a win or a forfeit; a detector can announce that no useful move remains without blocking the player.

Locked special cases and variants

• Auto-foundation is used only if it does not make a needed card inaccessible under a safety rule.
• Deal number kept to reproduce a game exactly.

Artificial intelligence

The AI uses only its hand, public cards, the allowed history, and the legal actions sent by the server.

• Hint AI frees Aces and low cards, avoids filling every cell, and creates empty columns.
• Hard uses transposition search and recognizes equivalent moves.