Pyramid Solitaire is built around a single piece of arithmetic: every pair you remove must total exactly 13. Twenty-eight cards are dealt into seven overlapping rows — one card at the crown, seven along the base — and the whole structure has to come down pair by pair before you run out of material.
The values are fixed and quickly memorized. Aces count 1, number cards their face value, Jacks 11, Queens 12, and Kings 13. Because a King hits the target on its own, it is removed solo — the only free move in the game. Everything else needs a partner: Ace with Queen, 2 with Jack, 3 with 10, 4 with 9, 5 with 8, and 6 with 7. Those six combinations cover the entire deck.
Position matters as much as arithmetic. A pyramid card is playable only when it is exposed, meaning both cards overlapping it from the row below are already gone. Just the seven base cards start exposed, so your opening removals ripple upward — each pair taken off the bottom can unlock one or two cards above it, and a well-chosen sequence keeps that cascade running.
The 24 cards left over from the deal form the stock. You flip them one at a time onto a waste pile and may pair the top waste card with any exposed pyramid card. When the stock empties, difficulty decides your lifeline: Easy lets you recycle the waste back into the stock twice, Medium once, and Hard not at all — a zero-redeal game where all 24 flips have to count.
The deck's structure explains most stuck boards. There are only four copies of each rank, so every 4 you pair with a 9 consumes one of just four 9s in existence; if the last 9 ends up buried beneath a 4 that needs it, that branch of the pyramid is dead. Counting even loosely — "three of the 9s are gone" — is the single strongest upgrade you can make to your game.
Pyramid is one of the stingiest solitaires ever devised: roughly 1 deal in 30 can be cleared even with perfect play. That scarcity is the appeal. With free instant deals, full undo, and win statistics saved in your browser, every session is a fresh shot at a genuinely rare victory.