How to fix this table presence on SQL server

When I try Solution 1 I get

Quote:

Msg 102, Level 15, State 1, Line 29
Incorrect syntax near 'nip'.

In the line indicated. Why? Adding that comma is incorrect and there is a missing closing bracket at the end of the query

CREATE TABLE [presence](
[id_presence] [int] IDENTITY (1, 1) NOT NULL ,
[tgl] [datetime] NULL ,
[nip] [char] (2), --added a comma here
CONSTRAINT [fk_nips] FOREIGN KEY [nip] -- << -- Error is here
REFERENCES [school] ([NIP] )

When I try Solution 2 I also get an error

Quote:

Msg 102, Level 15, State 1, Line 17
Incorrect syntax near ')'.

Why. Still missing the closing bracket

CREATE TABLE [presence](
[id_presence] [int] IDENTITY (1, 1) NOT NULL,
[tgl] [datetime] NULL,
[nip] [char] (2) CONSTRAINT [fk_nips] FOREIGN KEY ([nip])
REFERENCES [school] ([NIP]) -- << -- Error is here 

Here is the correct solution. Why? Only difference between the original version and the working version is that closing bracket. Judicious use of whitespace can help spot things like this.

CREATE TABLE [presence]
(
	[id_presence] [int] IDENTITY (1, 1) NOT NULL ,
	[tgl] [datetime] NULL ,
	[nip] [char] (2) CONSTRAINT [fk_nips] 
	FOREIGN KEY ([nip]) REFERENCES [school] ([NIP])
);

I did actually test my version, which clearly the previous two posters did not.