These studies use classic base UNO without added house rules. The learning cards are original simplified drawings labelled with colours and symbols, not official card artwork. Check legality before tactical usefulness.
In this guide
Exercise 1: on red 6
You hold red 3, blue 6, blue 3 and an ordinary Wild. Which plays are available with no pending penalty?
Position as text
Top: red 6. Hand from left: red 3, blue 6, blue 3, Wild. Legal: 1, 2, 4.
Answer and explanation
Red 3 by colour, blue 6 by number, and the ordinary Wild. Blue 3 matches neither. Draw Four is a different card type with an additional hand check.
Exercise 2: two similar Draw Four hands
On red 6, hand A is red 3, blue 6, Draw Four. Hand B is green 3, blue 6, Draw Four. Which passes the colour test?
Position as text
A: red 3, blue 6, Draw Four. B: green 3, blue 6, Draw Four. Blue 6 matches number in both, but is not a red card.
Answer and explanation
Hand B. A holds red 3, the active colour. B’s blue 6 is ordinarily playable but is not a red card. A challenge examines that colour condition before the play.
Exercise 3: answer with your own Draw Two?
A Draw Two targets you and you hold another. May you pass it on so the next person draws four in classic base play?
Answer and explanation
No. Draw two and lose the turn. That defence would be a house agreement or a different edition’s rule. The contrast with our Switch example is deliberate.
Exercise 4: a successful and a failed challenge
B is targeted by A’s Draw Four. In one case inspection shows A held the previous active colour; in the other it does not. Who draws how many?
Answer and explanation
If A’s Draw Four was illegal, A draws four instead of B. If it was legal, B draws six: the original four plus two for the failed challenge. This differs from playing another Draw Four as a defence.
Exercise 5: original remaining-card arithmetic
After the round, someone holds blue 7, yellow 2, Skip and an ordinary Wild. What is their total in the stated base game?
Answer and explanation
7+2+20+50 = 79. Card colour does not change those values. Remaining cards held by other players may add to the round award. Extra cards from other editions require their own reference.