Is it cheating to use undo or hints?
This one comes down to what you're playing for. There's no solitaire police - only the standard you set for yourself.
Why they're not cheating
When you might skip them
If you want a clean test of skill, play a deal start-to-finish with no undo and no hints - especially on the daily challenge or in multiplayer, where a single confident run is the whole point. That's a personal choice, not a rule.
What the leaderboard rewards
Ranked times naturally favour clean solves: hesitating, undoing and re-planning all cost seconds, and ties break toward fewer moves. So even though undo is always available, the leaderboard quietly rewards the players who don't need it.
Related questions
How is solitaire scored?
It depends on the mode. Standard scoring rewards cards moved to the foundations plus a speed bonus, so faster, tidier solves score higher. Vegas scoring is a cash game: you "buy" the deck for $52 and earn $5 per card banked, so your score can go negative. Leaderboards rank by finish time.
Which solitaire game is best for beginners?
Klondike Turn 1 is the classic starting point - simple rules and a high share of winnable deals. 1-suit Spider is even more forgiving. TriPeaks and Golf are fast, casual picks. Once comfortable, FreeCell teaches real planning, and Russian or Forty Thieves await when you want a challenge.
Is solitaire good for your brain?
Solitaire exercises genuinely useful mental skills: planning several moves ahead, remembering which cards have appeared, weighing risk against reward, and spotting patterns quickly. It is not a miracle brain trainer, but it is engaging mental activity many people find calming and focusing.