S3U
All video lessons

Math / Grade 4

Solitaire: what changes next?

Compare revealing a hidden card, creating a king space and repeating a stock pass.

Next: your worksheet

Solitaire: Uncover a New Choice

Continue to worksheet
Not started 0s active

Checking sign-in...

Read the transcript

What will change next?

You know how columns count down and alternate colors. Now compare what happens after a move. A legal move follows the rules. A useful move may reveal information or open a new choice. Those are different questions. We will inspect small parts of a deal, not pretend to solve every card.

Reveal one hidden card

Look at column one. The red four of diamonds covers one hidden card. Column two holds a black five of clubs. Move the four onto the five. This is legal, and it uncovers the hidden card. In S3U that card turns face up automatically. Now you have information you did not have before.

Compare another legal move

Instead, you could move the black five from column two onto the red six in column three. That is legal too. It empties column two but reveals no hidden card. The new space can hold a king. Neither move is always best. Compare the rest of the visible deal before deciding.

Do not guess the hidden rank

The dotted card is hidden. We cannot call it an ace just because an ace would be convenient. It may reveal a useful next move, or it may not. Cards do not take requests. Make a plan using what you can see, then revise it when new information appears.

Pause: choose what reveals

Here is a new close up. A hidden card sits below the black six in column one. Column two holds a red seven. Column three holds a black eight. Pause. Compare moving six onto seven with moving seven onto eight. Which move reveals a hidden card immediately? Are both moves legal?

Two legal moves, two effects

Both moves are legal. Each counts down by one and alternates colors. Moving the six onto the seven uncovers the hidden card in column one. Moving the seven onto the eight empties column two. The first reveals information now. That still does not prove the whole deal can be won.

Notice a repeated stock pass

Now stock is empty. Waste has four of clubs underneath six of diamonds. Turn the waste over without shuffling. Draw four first, then six. If neither card moves away and nothing else changes, the same arrangement returns. Another pass is legal, but it is not a magic card mixer.

Look beyond this close-up

Neither waste card fits the pictured black five. Four of clubs is black too. Six of diamonds is higher, not lower. But this is only a close up. Inspect the other columns and foundations. In S3U, a foundation top card may return to a legal column. A legal hint is not a winning proof.

Moving up is not permanent

Fun fact: a foundation card can come back in this practice variant. A top two of clubs may return onto a red three of diamonds. It counts down and alternates colors, just like another column move. That possibility is worth checking, but it does not mean every return is useful.

Explain your next choice

Continue to the worksheet below. Compare immediate effects, then try Notice a Repeated Pass. In Solitaire Studio, use undo or replay to inspect a choice. Say what changed and what remains unknown. It is fine to stop an unfinished deal. A random deal is not guaranteed winnable, and stopping does not lower a grade.