Spiderette, rules and strategy
Spider with a single deck: seven columns, hidden cards to reveal and four sequences to build from king to ace. This site explains the exact rules, strategy and winning games verified card by card. To play: Spiderette Solitaire, on iPhone, iPad and Android.
Available on the App Store and on Google Play.

Spiderette at a glance
Spiderette is played solo with a deck of 52 cards. 28 cards form 7 columns of 1 to 7 cards, from left to right: only the last card in each column is face up. The other 24 cards remain face down in the stock, which is used 4 times to deal a new card onto the columns.
Place a card on a card one rank higher, regardless of suit: a 7 on a 8. The aim is to build a complete run of the same suit from king to ace in a column: it is then removed from play. The game is won when all 4 runs have been removed. The rules explain each move in detail, and the strategy explains how to proceed.
A deal from the app
Here is the deal with code SD1-S1-AAAAABD as dealt by the app, with 1 suit. Paste this code into the app to play it; a winning game in 53 moves is detailed on the Examples page.
Stock: 24 cards, 4 deals remaining; no runs removed. Column 1: 0 face-down cards, then 7 of spades; column 2: 1 face-down cards, then 9 of spades; column 3: 2 face-down cards, then 6 of spades; column 4: 3 face-down cards, then 2 of spades; column 5: 4 face-down cards, then 9 of spades; column 6: 5 face-down cards, then jack of spades; column 7: 6 face-down cards, then 4 of spades.
Where to start?
The rules
Setting up the 52 cards, legal moves, groups, dealing, removed runs and scoring.
Strategy
Reveal face-down cards, build in the same suit, keep an empty column as a tool and prepare for each deal.
Verified games
Actual deals from the app with their game codes, including a game won in 53 moves, replayed move by move.
Frequently asked questions
How does it differ from Spider? How many suits should you choose? Why is dealing not allowed? Short answers.
On phone and tablet
The app is played in landscape orientation. It offers 1, 2 or 4 suits, a code for each game to replay or share a deal, undo for the last 100 actions, and statistics.

