Example Solutions

If you want to see some solutions to the N+k Queens Problem, look at the following files:

• nopawn.pdf: A PDF file with pictures of the fundamental solutions to the N+0 Queens Problem for N=4,5,6,7,8,9, and 10.
• onepawn.pdf: A PDF file with pictures of the fundamental solutions to the N+1 Queens Problem for N=6,7,8,9, and 10.
• twopawn.pdf: A PDF file with pictures of the fundamental solutions to the N+2  Queens Problem for N=7,8,9, and 10.
• threepawn.pdf: A PDF file with pictures of the fundamental solutions to the N+3  Queens Problem for N=8,9, and 10.
• fourpawn.pdf: A PDF file with pictures of the fundamental solutions to the N+4  Queens Problem for N=9,10, and 11.
• twopawngap.txt: A text file that gives some solutions to the N+2 Queens Problem for N between 11 and 100.
• threepawngap.txt: A text file that gives some solutions to the N+3 Queens Problem for N between 8 and 100.

Solution Counts

If you want the number of solutions to the N+k Queens Problem for certain small N and k, try one of these links:

• Solution Counts: Table providing (for some values of N and k) the number of ways to place N + k queens and k pawns on an N-by-N board so that no queens attack each other.
• Amazon Solution Counts:  Table providing (for some values of N and k) the number of ways to place N+k amazons  and k pawns on an N-by-N board so that no amazons attack each other
• http://oeis.org/search?q=chatham&language=english&go=Search Sequences contributed to the On-Line Encyclopedia of Integer Sequences.