Editing Skat (card game) (section)

===== Possible calls =====
The calling player (i.e. the player currently calling the bids) may either

* “pass”, leaving the bidding and forfeiting the chance to become declarer in this round, or
* bid any possible game value that is higher than the highest bid made so far in this round.

The responding player (i.e. the player currently responding to the bidder) may either

* “pass”, leaving the bidding and forfeiting the chance to become declarer in this round, or
* “accept” or "yes", staying in the bidding and waiting for further calls.
Responder must wait for caller to bid or pass before passing herself.

Except for "pass", only the possible game values are legal calls. Therefore, the lowest possible call is 18, which is the lowest possible game value in Skat. Players are free to skip intermediate values, although it is common to always pick the lowest available call while bidding.

The sequence of possible double digit game values, beginning with 18 is 18—20—22—23—24—27—30—33—35—36—40—44—45—46—48—50—54—55—59—60—63—66—70—72—77—80—81—84—88—90—96—99 (triple digit bids are possible albeit rare in a competitive bidding). Among German players the values representing null games, especially 23, the most common one, are often replaced by the call “null”. Also, numbers are frequently abbreviated by only calling the lower digit of a value not divisible by 10 (e.g. “two” instead of “22” or “five” instead of “45”); this is unambiguous if values are always called out in order and intermediate values never skipped, as is the custom. (As the German words for "null" and "zero" are identical, this yields the rather unintuitive sequence 18—20—2—0—4—7—30 and so on.)