Match same-rank pairs across thirteen piles dealt all at once, no stock to lean on, for a coin-flip 50% win rate that rewards reading the board.

You clear the tableau by matching pairs of same-rank cards, the same core idea as Simple Pairs, but here all 52 cards are dealt out at the start instead of trickling in from a stock, so you have to plan around what's already in front of you. It's medium difficulty, with a 50% chance of winning on a single deck, and luck still plays the bigger role in whether the ranks you need end up next to each other.
Other pair-matching games worth trying include Simple Pairs Solitaire and Nestor Solitaire.
Patient Pairs rewards patient study of a fixed board; classic Solitaire moves faster and looser, with cards revealing as you go.
If you run into anything odd or have an idea that would make the game better, please contact me.
Have a good time playing!
13 tableau piles: Match two cards of the same rank to discard them as a pair. Each pile's top card is available for matching. At the start of the game each pile is dealt four cards, all face-up.
There are thirteen tableau piles of four cards each, all dealt face-up.
No building is allowed on the tableau.
Any two uncovered cards of the same rank may be removed as a pair, regardless of suit.
The tableau's empty spaces may not be filled.