Is there a 2 in Short Deck?

No. 2, 3, 4 and 5 are removed. The published straight is A-6-7-8-9.

Are 6, 4 and 12 frequencies?

No. On the notation page they are the ways a 52-card deck deals those two cards. This page does not add an open list.

Does this page name the suits?

No. s means the same suit and o means different suits. The names of the suits are not published.

Hold'em

52 cards and 36 cards

Hold'em, Omaha and PLO5 use 52 cards. Short Deck uses 36, with 2, 3, 4 and 5 removed.

This page is the count and the ranks that are removed. No suit names, no play frequencies, and no new open list.

52 cards

Hold'em, Omaha, PLO5

On the notation page the ranks run A, K, Q, J, T, 9 down to 2. T is the ten. AA is 6 ways, AKs is 4 ways, and AKo is 12 ways. Those are ways to deal the cards.

36 cards

2, 3, 4 and 5 removed

The Short Deck page is 36 cards with 2, 3, 4 and 5 removed. The dashed ranks are the ones left out. The starting-hand chart does not use this deck.

The Short Deck straight

The published straight is A-6-7-8-9. A row that runs through a 5 is not listed. Flush above full house stays on the Short Deck page, and three of a kind versus a straight changes only in some rulesets.

Hand notation
Compare games
Short Deck
Starting hands
Straight flush

Questions

On the compare table Hold'em, Omaha and PLO5 are 52 cards. Short Deck is 36.