Crossword puzzle: chess-oriented and harder

Difficulty: high

Answers so far:

ACROSS: 4.Diagonal,7.Maurian,9.Wyvill,10.Expert,11.Junge,13.Colle,14.Kieseritzky,15.Bye,16.Shogi

DOWN: 1.Pairing,2.Rook,3.Bird,5.Alexander,6.Category,8.Weakness,9.Whyld,12.Mistress,15.Bind

15 a bye. I have lots of experience in those...

Could 2 be "rook"?

10 Across - Expert

And just in case that's wrong:

15 Down - Bind

2 d Rook

5 d Alexander

6 d Category

9 d Whyld

15 d bind

12d mistress

13a colle

16a shogi

1d pairing

3 down is Bird.

Whoa, all correct so far!

11a junge

9 across is Wyvill.

It's hard to find ones that haven't already been done...

11 Across- Junge (Check the spelling for me! )

EDIT: Goldendog beat me to it. Curses.

Junge & Wyvill correct!

8 d defended?

 No, but you are getting close...

Occupied

 No, second letter must be "E", since 10 across is "EXPERT."