Spider Solitaire Classic

The main purpose of the game is to remove all cards from the table, assembling them in the tableau before removing them. Initially, 54 cards are dealt to the tableau in ten piles, face down except for the top cards. The tableau piles build down by rank, and in-suit sequences can be moved together. The 50 remaining cards can be dealt to the tableau ten at a time when none of the piles are empty.

Variants:
Gigantic Spider: Four decks
Relaxed Spider: Does not require all spaces to be filled before redealing
Spiderette: Only one pack, Klondike layout; see below
Spiderwort: Three decks
Will o' the Wisp is another solitaire card game which was invented by Geoffrey Mott-Smith and is played the same way as Spiderette. The exception is that on the onset, twenty-one cards are dealt into seven columns of three with only the top card of each column face-up.

Different software implementations of spider offer alternative scoring rules. The version from Sun Microsystems from 1989 defines the following rules in the manual: 10 points for each initially face down card that gets turned over; 15 additional points for each column where all the face-down cards have been turned over (even if you don't manage to get a space); 2 points for each card that is sitting atop the next higher card of the same suit; 50 points for each completed suit removed from the tableau (in which case you do not also score for the 12 cards sitting atop next higher cards). This yields a maximum score of 990. If you win the game with 4 or more completed suits still in the tableau, add 2 points for each suit after the first three. Thus winning with all eight suits still in the tableau yields a score of 1000.