Ed Gilbert has set his KingsRow engine and 10 piece endgame database on the path of more deep discoveries as he continues to mine interesting problems. Here's a sample of some of the things Ed has unearthed:

• As long suspected, the alternate jump in the Single Corner (11-15 22-18 15-22 26-17) is a draw. Ed cautions us that his findings don't constitute absolute proof, but his new computer opening book shows a draw against virtually all lines of attack.
• Elbert Lowder's 13-17 defense in the Will-o-the-Wisp is a very narrow draw.
• The new book contains some interesting Switcher lines like play after 11-15 21-17 9-13 25-21 8-11 23-18 4-8.
• Ed has searched for alternate lines in the Double Cross. The book confirms that after 9-14 23-18 14-23, then 26-19 is indeed a loss. Also, after 9-14 23-18 14x23 27x18 12-16, then only 18-14 draws, and all others are almost certain losses.
• How about drawing lines in the dreaded Edinburgh? The book shows that after 9-13 22-18 6-9 18-14 xx, there are three moves to draw: 12-16, 11-15, and 1-6.
• The book makes an end of this "ash can" line: 10-15 22-17 15-19 24x15 11x18 23x14 9x18 26-23 6-9 23x14 9x18 30-26 5-9 17-14 1-5 21-17 9-13 25-21 3x22 26x17.
• And similarly, the book finishes off this GAYP line: 11-15 24-19 15x24 27x20 9-14 23-19 8-11 26-23 11-15 22-18 15x24 18x9.
• Ed looked into the 27x20 jump in the Waterloo opening: 11-15 23-18 8-11 18-14 9-18 24-19 15-24 22-8 4-11 and now if 27-20 instead of the normal 28-19, the draw is tough, but it is there.
• Perhaps most exciting of all, Ed has found five new drawing lines in the Black Hole!

See for yourself; you can download this special opening book, for use with KingsRow and CheckerBoard, from Ed's web site here.

Thanks to both Ed Gilbert and Brian Hinkle for providing us with input for this story.