#face-up

Penguin is a single-deck solitaire invented by David Parlett with a 99.9% win rate. All 52 cards are dealt face-up into seven columns of seven. The first card — the beak — sets the starting rank for all four foundations. Seven flipper cells store cards temporarily. Sequences build down by suit with wraparound ranking.

Russian Solitaire is a single-deck Yukon variant with only a 13% win rate. All 52 cards are dealt into seven tableau columns. Unlike Yukon, sequences must build down by suit only — not alternating colors. Any face-up card or group may move regardless of internal order. Foundations build up by suit from Ace to King.

Yukon is a single-deck solitaire variant with a 25% win rate, similar to Klondike but with no stock pile. Columns 2-7 have face-down cards beneath face-up cards. Players move any face-up card or sequence — regardless of order — between tableau columns to build four foundation piles from Ace to King by suit.