compute maximum number of black rectangles in a cutome given black and white board
1802
Puzzle: Find largest rectangle (maximal rectangle problem)
157079
Maximal cardinality of a family of pairwise disjoint "figure eights" in the plane
111609
Each $2\times 5$ rectangle contains $1\times 3$ rectangle
81042
How can we draw $14$ squares to obtain an $8 \times 8$ table divided into $64$ unit squares?
73832
How to find the maximum diagonal length inside a dodecahedron?
44394
Coloring a $10×10$ grid
105459
Creating lots of random cuts on a surface
81333
Multiple object instances represented by two slightly shifted rectangles
132921
Counting problem, number of moves
107110
Solving Rubik's cube and other permutation puzzles
65622
Maximum edges in a square free graph
45448
Minimum number of $k$-partitions of a set of size $n$ to enumerate all $n \choose k$ combinations
130371
Two Rectangles intersection
104749
Implement the Bisection algorithm elegantly and easily
18117
Maximum number of edges in a simple graph?
25382
Maximum number of edges in a bipartite graph
145181
How can I prove the maximum number of edges?