Some puzzles use circles to identify special boxes in the grid. Here's the complete list. Note that in a very few cases, I have added
cirlces to puzzles that didn't have them in the original publication to point out theme clues. These are noted in each puzzle.
1.6% of all the puzzles in the database (85 total) have circles.
Here's the list from most recent to oldest:
| Date | Author | Title |
| Monday, October 06, 2008 | Patrick Blindauer | |
| Wednesday, October 01, 2008 | Barry Boone | |
| Monday, September 22, 2008 | Peter A. Collins | |
| Thursday, September 18, 2008 | Mike Nothnagel | |
| Thursday, September 11, 2008 | Caleb Madison | |
| Wednesday, September 10, 2008 | Lucas Gaviotis Whitestone | |
| Thursday, August 14, 2008 | Damon J. Gulczynski | |
| Sunday, August 10, 2008 | Will Nediger | INSIDE JOKES |
| Wednesday, July 30, 2008 | Elizabeth A. Long | |
| Wednesday, July 23, 2008 | Henry Quillen | |
| Sunday, July 20, 2008 | Barry C. Silk | ACROSS THE BOARD |
| Monday, July 07, 2008 | Bob Klahn | |
| Monday, June 30, 2008 | Lynn Lempel | |
| Sunday, May 25, 2008 | Elizabeth C. Gorski | SPY GLASS |
| Tuesday, May 06, 2008 | Gary J. Whitehead | |
| Sunday, April 20, 2008 | John Farmer | SPACED OUT |
| Sunday, March 30, 2008 | Paula Gamache | MIXED FEELINGS |
| Sunday, March 09, 2008 | Patrick Berry | SPLITS AND MERGERS |
| Sunday, March 02, 2008 | Patrick Blindauer and Tony Orbach | FORWARD THINKING |
| Sunday, February 24, 2008 | Nancy Nicholson Joline | WINNERS' CIRCLES |
| Thursday, February 21, 2008 | Peter A. Collins | |
| Thursday, January 31, 2008 | Paula Gamache | |
| Sunday, January 20, 2008 | Natan Last | TRIANGULATION |
| Wednesday, January 09, 2008 | John Farmer | |
| Sunday, December 30, 2007 | Elizabeth C. Gorski | WINTER FIGURE |
| Monday, October 22, 2007 | Lynn Lempel | |
| Monday, September 10, 2007 | Edward M Sessa | |
| Sunday, August 26, 2007 | Andrew M. Greene and Craig Kasper | GETTING AHEAD |
| Thursday, July 19, 2007 | David J. Kahn | |
| Monday, July 09, 2007 | Peter A. Collins | |
| Monday, July 02, 2007 | Peter A. Collins | |
| Sunday, July 01, 2007 | Nancy Salomon and Bill Zais | DIAMOND JUBILEE |
| Sunday, June 24, 2007 | Eric Berlin | NO APPOINTMENT NECESSARY |
| Wednesday, June 20, 2007 | Bonnie L. Gentry and Victor Fleming | |
| Wednesday, May 16, 2007 | Patrick Blindauer | |
| Tuesday, May 01, 2007 | Courtenay Crocker and Nancy Salomon | |
| Wednesday, April 25, 2007 | John Farmer | |
| Monday, February 26, 2007 | Peter A. Collins | |
| Sunday, January 07, 2007 | Ashish Vengsarkar | SPELLCHECK |
| Sunday, November 12, 2006 | Patrick Berry | LOOK INSIDE |
| Tuesday, September 12, 2006 | James R. Leeds | |
| Friday, August 18, 2006 | Joe DiPietro | |
| Thursday, July 13, 2006 | Manny Nosowsky | |
| Sunday, June 25, 2006 | Jim Page | KEEPING COMPANY |
| Sunday, May 14, 2006 | Patrick Berry | TRAVELING IN CIRCLES |
| Sunday, January 22, 2006 | George Barany and Michael Shteyman | THE SOUND OF MUSIC |
| Thursday, November 24, 2005 | Michael Shteyman | |
| Thursday, November 03, 2005 | Byron Walden | |
| Sunday, July 17, 2005 | David J. Kahn | CELEBRATION |
| Thursday, May 26, 2005 | David J. Kahn | |
| Sunday, January 30, 2005 | Derrick Niederman | SMOOTH MOVE |
| Thursday, December 30, 2004 | Kyle Mahowald | |
| Sunday, December 05, 2004 | David J. Kahn | FROM THE PRESIDENTIAL RECORD BOOKS |
| Monday, October 18, 2004 | Steve Kahn | |
| Wednesday, October 13, 2004 | Patrick Merrell | |
| Thursday, September 02, 2004 | David J. Kahn | |
| Wednesday, May 12, 2004 | Allan E. Parrish | |
| Tuesday, May 04, 2004 | Eric Berlin | |
| Sunday, May 02, 2004 | Derrick Niederman | SELF-DEFINING |
| Sunday, April 11, 2004 | Patrick Merrell | WE'RE #2! |
| Thursday, March 04, 2004 | Patrick Merrell | |
| Tuesday, January 20, 2004 | Eric Berlin | |
| Sunday, December 14, 2003 | Elizabeth C. Gorski | BRANCHING OUT |
| Thursday, May 08, 2003 | Elizabeth C. Gorski | |
| Monday, April 28, 2003 | Jim Hyres | |
| Wednesday, March 05, 2003 | Tyler Hinman | |
| Sunday, January 12, 2003 | Patrick Berry | HALF AND HALF |
| Thursday, December 26, 2002 | Cathy Millhauser | |
| Sunday, October 13, 2002 | Elizabeth C. Gorski | DOWNWARD SPIRAL |
| Monday, April 16, 2001 | Peter Gordon | |
| Sunday, January 28, 2001 | Jim Page | NATURE CALLS |
| Sunday, December 31, 2000 | Elizabeth C. Gorski | MAKING A FACE |
| Sunday, December 24, 2000 | Bill Zais | CHRISTMAS PLAY |
| Tuesday, October 31, 2000 | Bill Zais | |
| Sunday, September 03, 2000 | David J. Kahn | WHO WANTS TO BE A QUIZ SHOW CONTESTANT? |
| Wednesday, July 26, 2000 | William I. Johnston | |
| Sunday, February 13, 2000 | Bill Zais | GROOVY KIND OF LOVE |
| Wednesday, September 15, 1999 | Thomas W. Schier | |
| Wednesday, February 03, 1999 | Glenn E. Sykes | |
| Sunday, November 01, 1998 | Robert Malinow | "Insiders" |
| Sunday, March 29, 1998 | Robert H. Wolfe | "Two By Thirteen" |
| Sunday, May 11, 1997 | Nancy Nicholson Joline | "Infested!" |
| Tuesday, April 01, 1997 | Patrick Jordan | |
| Wednesday, September 28, 1994 | Robert Zimmerman | |
| Sunday, April 03, 1994 | Ernie Furtado | Mystery Theme |