Roslin is Yukon with one restriction lifted. The board is identical: a single face-up card in the first column, then six columns growing to eleven, with hidden bases underneath and everything else in plain sight. The famous Yukon move rule is unchanged — any face-up card may be picked up and carried with every card sitting on it, in any order at all. What changes is the building: instead of placing only the next rank down, you may build up or down by one, as long as the colours alternate. That roughly doubles where every card can go. Free in your browser, no sign-up.
Goal: build all four foundations from Ace to King by suit.
Two-way building on a board where anything can be lifted makes almost every move legal. The skill is entirely in choosing which of them to make.
Roslin is registered in the PySol Fan Club collection as a Yukon variant, and its class is a single line: swap the tableau stack for one that tests the rank gap in both directions. Its own help text states the game exactly — "Build up or down by alternate color, can move any face-up cards regardless of sequence." Nothing else changes, so the board, the deal, the King rule and the absence of a stock are all Yukon's.
That relationship has a precedent in the same family. Alaska stands to Russian Solitaire exactly as Roslin stands to Yukon: one direction of building becomes two, and everything else is untouched. Playing Yukon and Roslin back to back is the cleanest way to feel what that single change is worth on a board where every face-up card is already movable.
Within this catalogue its other neighbours change a different rule each. Moosehide builds down in any suit but the card's own; Ukrainian Solitaire opens the empty columns to any card; Brisbane drops the suit rule entirely.
One honest note on difficulty. No published win rate for Roslin that we can find carries a method or a sample size, so this page quotes none. Structurally it should be more forgiving than Yukon — twice the destinations for every card — but the hidden cards and the King rule are unchanged, and those are what usually decide a Yukon game.
By one rule. Roslin lets you build up as well as down, so a red 9 fits on a black 8 just as a red 7 does. The deal, the hidden cards, the King rule and the move-anything rule are all Yukon's, unchanged.
Yes, and that is the rule that defines this whole family. Any face-up card may be picked up, and it carries every card sitting on top of it whatever order they are in.
No. A King has no card above it and an Ace none below, so the two-way build stops at both ends of the rank order rather than rolling around.
Only a King, along with whatever tail it is carrying. That is Yukon's rule unchanged, and it means clearing a column is worth doing only when a King is reachable.
Neither. All 52 cards are on the table from the first move, 21 of them face down. What you see plus what you uncover is the entire game.
Alaska, which stands to Russian Solitaire exactly as Roslin stands to Yukon: one direction of building becomes two and nothing else changes. Playing the pairs back to back shows what that is worth.