Grids that have more open white space are typically harder to solve and to construct.
The "open square count" here adds up the number of white squares that do not touch a block (black square), even diagonally.
*** Be sure to click the Thumbnails link at the top of this page
to see what the wide-open puzzles look like ***
or click a date below to see the full puzzle.
Only 15 by 15 puzzles are considered here.
Here are the top 100:
| Rank | Date | Open Square Count | Author |
| 1 | Saturday, November 22, 2008 | 127 | Frank Longo |
| | Saturday, April 14, 2007 | 127 | Sherry O. Blackard |
| | Friday, December 10, 2004 | 127 | Frank Longo |
| 4 | Saturday, July 28, 2007 | 125 | Manny Nosowsky |
| | Saturday, February 14, 2004 | 125 | Frank Longo |
| | Saturday, December 22, 2001 | 125 | Trip Payne |
| | Saturday, January 23, 1999 | 125 | Frank Longo |
| | Saturday, February 15, 1997 | 125 | J. Clonick |
| 9 | Friday, August 22, 2008 | 124 | Kevin G. Der |
| | Saturday, November 13, 2004 | 124 | Frank Longo |
| 11 | Friday, October 17, 2008 | 121 | Patrick Berry |
| | Saturday, August 24, 2002 | 121 | Chuck Menning |
| | Saturday, December 15, 2001 | 121 | Frank A. Longo |
| 14 | Friday, February 15, 2008 | 120 | Patrick Berry |
| | Saturday, December 22, 2007 | 120 | Harvey Estes |
| | Saturday, July 15, 2006 | 120 | Patrick Berry |
| | Friday, March 11, 2005 | 120 | Manny Nosowsky |
| 18 | Friday, January 21, 2005 | 119 | Frank Longo |
| | Friday, January 19, 2001 | 119 | Joe DiPietro |
| 20 | Saturday, October 31, 2009 | 118 | Robert H. Wolfe |
| | Saturday, July 18, 2009 | 118 | Joe Krozel |
| | Saturday, March 22, 2008 | 118 | Byron Walden |
| | Saturday, October 08, 2005 | 118 | Byron Walden |
| | Saturday, September 24, 2005 | 118 | Byron Walden |
| | Saturday, August 07, 2004 | 118 | Patrick Berry |
| | Friday, July 24, 1998 | 118 | Manny Nosowsky |
| 27 | Friday, January 27, 2006 | 117 | Sherry O. Blackard |
| | Friday, December 09, 2005 | 117 | Sherry O. Blackard |
| | Saturday, September 25, 2004 | 117 | Byron Walden |
| | Saturday, October 21, 2000 | 117 | Bob Klahn |
| | Friday, October 24, 1997 | 117 | Frank Longo |
| 32 | Friday, April 11, 2008 | 116 | Manny Nosowsky |
| | Friday, December 07, 2007 | 116 | Patrick Berry |
| | Friday, February 03, 2006 | 116 | Manny Nosowsky |
| | Friday, August 12, 2005 | 116 | Manny Nosowsky |
| | Saturday, May 07, 2005 | 116 | Patrick Berry |
| | Saturday, September 04, 2004 | 116 | Patrick Berry |
| | Friday, August 20, 2004 | 116 | Harvey Estes |
| | Saturday, August 03, 2002 | 116 | Patrick Berry |
| 40 | Saturday, September 08, 2007 | 115 | Brendan Emmett Quigley |
| | Saturday, November 05, 2005 | 115 | Patrick Berry |
| | Saturday, November 08, 2003 | 115 | Sherry O. Blackard |
| | Saturday, May 25, 2002 | 115 | Frank Longo |
| | Friday, November 06, 1998 | 115 | Bob Klahn |
| | Saturday, May 31, 1997 | 115 | Frank Longo |
| 46 | Friday, September 04, 2009 | 114 | Joe Krozel |
| | Friday, August 07, 2009 | 114 | Manny Nosowsky |
| | Saturday, September 20, 2008 | 114 | Joe Krozel |
| | Friday, January 04, 2008 | 114 | Raymond C. Young |
| | Saturday, December 01, 2007 | 114 | Robert H. Wolfe |
| | Saturday, July 21, 2007 | 114 | Raymond C. Young |
| | Saturday, December 09, 2006 | 114 | Robert H. Wolfe |
| | Saturday, March 18, 2006 | 114 | Patrick Berry |
| | Friday, June 17, 2005 | 114 | Manny Nosowsky |
| | Saturday, April 02, 2005 | 114 | Byron Walden |
| | Saturday, January 29, 2005 | 114 | Patrick Berry |
| | Saturday, June 15, 1996 | 114 | R. Ross |
| 58 | Saturday, December 29, 2007 | 113 | Bob Klahn |
| | Friday, January 12, 2007 | 113 | Sherry O. Blackard |
| | Saturday, July 29, 2006 | 113 | Bob Klahn |
| | Saturday, May 06, 2006 | 113 | James E. Buell |
| | Saturday, October 15, 2005 | 113 | Paula Gamache |
| | Saturday, December 23, 2000 | 113 | Bob Klahn |
| | Friday, August 07, 1998 | 113 | Frank Longo |
| | Saturday, June 17, 1995 | 113 | Frank A. Longo |
| 66 | Saturday, June 14, 2008 | 112 | Brendan Emmett Quigley |
| | Saturday, January 13, 2007 | 112 | Patrick Berry |
| | Friday, September 22, 2006 | 112 | Sherry O. Blackard |
| | Saturday, August 05, 2006 | 112 | Trip Payne |
| | Saturday, November 01, 2003 | 112 | Bob Peoples |
| | Saturday, April 05, 2003 | 112 | Patrick Berry |
| | Friday, June 07, 2002 | 112 | Manny Nosowsky |
| | Saturday, March 30, 2002 | 112 | Mark Diehl |
| | Friday, March 01, 2002 | 112 | Manny Nosowsky |
| | Saturday, December 29, 2001 | 112 | Bob Peoples |
| | Saturday, June 30, 2001 | 112 | Frank Longo |
| 77 | Friday, July 25, 2008 | 111 | John Farmer |
| | Saturday, July 30, 2005 | 111 | Sherry O. Blackard |
| | Friday, May 27, 2005 | 111 | Manny Nosowsky |
| | Friday, August 27, 2004 | 111 | Manny Nosowsky |
| | Saturday, June 05, 2004 | 111 | Byron Walden |
| | Friday, April 03, 1998 | 111 | Frank Longo |
| | Saturday, October 29, 1994 | 111 | Frank A. Longo |
| | Saturday, June 18, 1994 | 111 | Randolph Ross |
| 85 | Saturday, August 29, 2009 | 110 | Doug Peterson |
| | Friday, February 01, 2008 | 110 | Doug Peterson |
| | Saturday, April 08, 2006 | 110 | Patrick Berry |
| | Saturday, March 25, 2006 | 110 | Byron Walden |
| | Saturday, October 01, 2005 | 110 | Joe DiPietro |
| | Saturday, August 27, 2005 | 110 | Byron Walden |
| | Saturday, July 02, 2005 | 110 | Sherry O. Blackard |
| | Friday, February 18, 2005 | 110 | Harvey Estes |
| | Friday, February 11, 2005 | 110 | Manny Nosowsky |
| | Friday, February 04, 2005 | 110 | Robert Bridges |
| | Saturday, January 31, 2004 | 110 | Byron Walden |
| | Saturday, November 22, 2003 | 110 | Robert H. Wolfe |
| | Saturday, July 12, 2003 | 110 | Manny Nosowsky |
| | Saturday, March 08, 2003 | 110 | Patrick Berry |
| | Friday, November 22, 2002 | 110 | Sherry O. Blackard |
| | Friday, April 26, 2002 | 110 | Manny Nosowsky |