Spider

Variant played: Two suits by default · one- or four-suit options · Version 1.0.0

Objective

Build and clear eight complete King-to-Ace suit stacks.

Setup

1. Use 104 cards.
2. Deal 54 cards into 10 columns: 6 cards in the first four and 5 in the other six; only the top card is visible.
3. The 50 remaining cards make 5 deals of 10 cards.

Turn or round flow

1. Move a face-up card or sequence of the same suit in strict descending order.
2. A card/sequence may be placed on a card of the immediately higher rank, whatever its suit.
3. An empty column accepts any legal card or sequence.
4. Deal a new row of 10 cards when needed.

Legal actions and obligations

• A new row cannot be dealt if a column is empty.
• Only same-suit sequences can be moved as a group.
• When a complete King-to-Ace run of the same suit appears, it is removed automatically.

Score

• Win: 8 sequences removed.
• Optional score: start at 500, -1 per move, +100 per completed sequence.

End of game

• The game ends with a win or a forfeit; no automatic loss is declared as long as a move or deal is still possible.

Locked special cases and variants

• Levels 1, 2, and 4 suits use the same movement rules.
• Undo is allowed in Relax mode; deals cannot be undone, depending on competitive settings.

Artificial intelligence

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

• Hint AI prefers to build/extend a same-suit run, reveal a hidden card, and preserve empty columns.
• Hard searches move sequences while accounting for temporary column capacity.