This is #27 in Will Shortz's Book #2. I was hoping to finish it by the end of 2005. Here's what I got so far:
147 59* 23*
295 73* **4
638 142 759
386 4** 9*2
472 **9 *65
519 26* ***
**3 *** *21
824 671 593
**1 *2* 8**
Of course I was able to identify some obvious pairs, e.g., the last two openings in the first row are 7 and 9.
Any hints to help me make the next move would be greatly appreciated. Thanks.