What are the common Jass mistakes that cost points?

Why does the Puur beat the ace in a trump suit?

The Puur is the Under of the trump suit, and it is the strongest card in that suit. The Nell, the nine of trumps, ranks next, followed by the ace. An ace therefore cannot beat either the Puur or the Nell in a trump trick.

Trump strength does not use the ordinary order for a plain suit. In a plain suit and in Obenabe, the ace is strongest, followed by the king, Ober, Under, ten and the lower cards. In a trump suit, the Puur moves above every other card and the Nell moves above the ace. The card values table also shows the difference in scoring: the Puur and Nell carry the highest trump values as well as high trick strength.

Separate trick strength from card value when you make a decision. The Puur wins against every other trump, but the trick also contains card points that matter to the team collecting it. The Nell has a similarly important position. The ace remains valuable, yet it ranks third in the trump suit rather than first.

A worked example makes the order clear. Suppose the trump suit is hearts and the trick contains the heart ace. The heart king, Ober, Under and ten cannot beat that ace, but the heart Nell can. The heart Puur beats every one of those cards, including the Nell. A player who sees an ace and assumes that no trump can pass it will misplay the trick.

Avoid these errors:

• Do not play the ace expecting it to beat the Puur or Nell.
• Do not carry the plain-suit order into a trump contract.
• Do not treat the Puur as an ordinary Under.
• Do not use card points as a substitute for the strength order.

The complete trump order is Puur, Nell, ace, king, Ober, ten, eight, seven, six. The lower trumps still matter because players must obey the applicable following-suit rules, but no lower trump can defeat a higher card in that order. The card’s name does not determine its position by itself: the trump rule gives the Under its special name and its position at the top.

When is undertrumping illegal in Jass?

Undertrumping is illegal when trump must be played and a player holds a higher trump than the trump already on the table. The player must play the higher trump rather than a lower one. A lower trump is not legal merely because it carries fewer card points or seems less useful later.

The decision starts with the duty to follow suit. The following-suit rules set out the order: identify the suit led, check whether you hold that suit, and then determine what the contract requires if you do not. A player who holds the led suit must follow it. A player without that suit may have to play trump, and the overtrumping rule applies when a trump is already in the trick.

Consider a plain-suit lead followed by a trump from another player. You have no card in the led suit, so trump is required under the applicable rule. Your hand contains the trump seven and trump king. Playing the seven under the king is illegal because the king is the higher trump you hold. You must play the king. The point value of the seven does not create an exception.

Use the following check before placing a card:

• Check whether you hold the suit that was led.
• Play that suit when you hold it.
• If you do not hold it, check whether trump must be played.
• Compare your trumps with the strongest trump already played.
• Play a higher trump when you hold one, rather than undertrumping it.

Do not confuse undertrumping with having no winning card. If every trump in your hand is lower than the trump already played, you cannot overtrump. The error occurs when a player chooses a lower trump while a higher legal trump is available. The same principle applies whether the higher trump is the Puur, Nell or another card in the trump order.

The rule protects the meaning of the trump hierarchy. Strength determines legality, while card value helps you judge the result of a legal play. Keep the card values page available while learning, but compare rank rather than points when deciding whether a trump must overtake the card already played.

Why is wasting the Nell such a costly Jass mistake?

The Nell is the nine of the trump suit. It is the second-strongest trump and is worth 14 card points, so using it without a clear purpose can surrender control and value. A player who treats the Nell as an ordinary nine may spend a card that a weaker trump would have made unnecessary.

The Nell ranks immediately below the Puur and above the ace. It therefore defeats every trump below it: the ace, king, Ober, ten, eight, seven and six. It cannot defeat the Puur. The strength order and the point value work together, but they answer different questions. Strength tells you which trump wins; card value tells you what the card contributes when the trick is collected.

Suppose a player leads a low plain-suit card and another player cuts with the trump eight. If you have the trump Nell, you can win that trick with the Nell, but you may not need to do so if a lower legal trump would also win. By contrast, if the trick already contains the trump ace, the Nell is the strongest trump still able to overtake it, unless the Puur is available and played. The same card can therefore be wasteful in one trick and essential in another.

Wasting the Nell usually takes one of these forms:

• Playing it when a lower trump would also win.
• Spending it on a trick containing few card points.
• Forgetting that only the Puur ranks above it.
• Keeping a lower trump for a later trick that the Nell could have won, then losing the Nell elsewhere.

The card has two strategic jobs. It can take control of a trick, and it brings 14 card points to the team that wins that trick. The learn Jass guide explains the wider structure, while the immediate choice depends on the cards already played, the cards you must legally play and the value of the trick.

Keeping the Nell is not automatically correct. A legal opportunity to win a valuable trick may justify using it. The mistake is playing it without comparing the alternatives. Remember the short rule: the Puur is above the Nell, the Nell is above the ace, and the Nell is worth 14 points.

Why does showing Weis not mean that the points are confirmed?

Weis is a declared meld. On the first trick, each player announces only the value of their best meld while playing their card. The announcement is public, but the points remain provisional until the team holding the single best Weis shows the actual cards on the second trick.

A player must not write an announced twenty, fifty or a hundred immediately. The announcement states the value being claimed, not the final result. Another player may announce a stronger Weis, or the comparison rules may give priority to another meld. Only the team holding the single best Weis writes anything. The other team writes nothing, even when its announced meld is valid.

Partners must keep their information private from each other. A player may announce the value of their best meld in turn as they play on the first trick. Partners may not tell each other about a meld or ask about one. Only the announced values are public. A direct question, a coded remark or a partner’s reaction cannot be used to establish the cards in the meld.

The correct procedure is:

• On the first trick, announce only the value of your best Weis as you play.
• Say the value, such as twenty, fifty or a hundred, without naming the cards.
• Wait for the comparison to determine which team has the single best Weis.
• On the second trick, the winning team shows the actual cards.
• Write the Weis points only after that showing and confirmation.

The Weis rules describe sequences and four of a kind, including the comparison order. A card may belong to a sequence and to a four of a kind at the same time. That possibility does not allow both teams to write, and it does not make an announcement final before the comparison.

A worked example is simple. One team announces fifty and the other announces a hundred. The team announcing fifty does not write its meld merely because its cards may form a valid sequence. The team with the better comparison result shows the cards on the second trick, and only that team records the points. The first announcement is evidence for the comparison, not a completed entry on the Jasstafel, the scoring board.

How can the wrong Weis comparison change the score?

The best Weis is decided by a fixed comparison order. Compare points first, then the number of cards, then the highest card in the meld, then a meld in the trump suit, and finally the seat position relative to the forehand. Skipping a stage can give the Weis points to the wrong team.

Weis sequences always follow the natural order from six to ace. That rule remains in force in Undenufe, the contract in which the whole trick-strength ladder is inverted. Undenufe changes which card wins a trick; it does not reverse the order used to judge a sequence. Trick strength and Weis order must remain separate in your calculation.

Sequence values are fixed. Three cards are worth 20, four cards 50, five cards 100, six cards 150, seven cards 200, eight cards 250 and nine cards 300. Four Under cards are worth 200, four Nell cards 150, and four aces, kings, Obers or tens are worth 100. Four sixes, sevens or eights are worth nothing. Compare these values before using the later tie-breakers.

For example, a sequence of five cards is worth 100, while four Nell cards are worth 150. The four Nell meld wins on points, even though the sequence contains more cards. A sequence of four cards in the trump suit may matter at a later comparison stage only when the earlier tests do not decide the result. A high-looking card does not override a higher meld value.

Common comparison errors include:

• Choosing the meld with the highest card instead of the meld worth the most points.
• Treating a longer sequence as automatically better.
• Reading a sequence backwards in Undenufe.
• Applying the trump-suit tie-breaker before comparing points or card count.
• Forgetting the final seat comparison relative to the forehand.
• Assuming that partners write separate melds for the same team.

Partners’ melds are considered together for the team holding the single best Weis. The other team records nothing, even when its meld was valid. A card may support a sequence and a four of a kind at the same time, so check every qualifying combination before comparing the teams.

Work through the order deliberately before the second-trick showing. The tool for trick decisions can help separate card strength from card value, while the Weis rule supplies the correct meld comparison. A visually impressive meld is not necessarily the meld that wins.

Why must the round be counted with the contract multiplier?

The card points collected in the tricks are not always the final round total. Every contract places exactly 152 card points in the pack, but the contract multiplier must also be applied when the round is scored. Recording only the visible card subtotal leaves the calculation incomplete.

The card-value table provides the correct starting point. In a trump contract, the trump suit totals 62 card points and each plain suit totals 30. In Obenabe, the contract in which aces are high, each suit totals 38. In Undenufe, the contract with the inverted trick ladder, each suit also totals 38. The distribution changes, but every contract still contains exactly 152 card points.

The common mistake appears after the tricks have been collected. A player counts the card values correctly, adds confirmed Weis and writes that subtotal without applying the multiplier for the contract in play. The subtotal may look credible because the cards were counted accurately. The round total is still wrong.

Use this scoring order at the table:

• Count the card points in the tricks.
• Add the Weis confirmed for the team holding the best meld.
• Identify the contract being scored.
• Apply that contract’s multiplier.
• Enter the resulting round total on the Jasstafel.

Do not apply the multiplier to an unconfirmed Weis announcement. First determine which team holds the single best Weis and show the actual meld on the second trick. Then include the confirmed Weis in the calculation. The multiplier is a separate scoring step from card ranking and from the Weis comparison.

The contract also changes individual card values. Under a trump contract, the trump Under is worth 20, the Nell 14 and the trump ace 11. A plain-suit Under in that contract is worth 2. In Obenabe, the eight is worth 8 in each suit. In Undenufe, the six is worth 11 and the ace is worth 0. These differences explain why the correct contract table matters before the subtotal is added.

A final check catches both mistakes. Confirm the contract, use its card values, verify the 152-card-point total across the pack, add confirmed Weis and then apply the contract multiplier. That process prevents a correct trick count from becoming an incorrect round score.