Section B - Intermediate Pentomino Problems This section contains problems that require the use of all twelve pentominoes. You will discover that even the first ten problems are very difficult to solve. Perseverance and patience is essential to solve any of the problems in this section. Problems B-1 through B-6: 8x8 Square with Four Unit Holes. B-1 B-2 B-3 B-4 B-5 B-6 Problems B-11 through B-13: Three Hearts. B-11 B-12 B-13 Problems B-14 through B-16: Three Crosses. B-14 B-15 B-16 Problems B-17 through B-22: Variations of the 88 Square with Four Unit More interesting solutions can be sought for problems B-1, B-4 and Holes. Each pattern can be divided into congruent parts. The division is indicated by the heavy line. B-17 B-18 B-19 B-20 B-21 B-22 are over two Problems B-23 through B-28: Variations of the 610 Rectangle. thousand solutions to the basic 6 10 rectangular pattern. These six problems  impose additional constraints to make the pattern more challenging. B-23 Obtain a solution to the 610 rectangle by constructing two simultaneous 65 rectangles. (Note that this solution can also form a 512 rectangle.) B-24 Build the 610 rectangle such that it contains a 35 sub-rectangle. (a) (b) a 45 sub-rectangle. Can the sub-rectangles be constructed so that it is completely contained the within larger rectangle?
Section B - Intermediate Pentomino Problems This section contains problems that require the use of all twelve pentominoes. You will discover that even the first ten problems are very difficult to solve. Perseverance and patience is essential to solve any of the problems in this section. Problems B-1 through B-6: 8x8 Square with Four Unit Holes. B-1 B-2 B-3 B-4 B-5 B-6 Problems B-11 through B-13: Three Hearts. B-11 B-12 B-13 Problems B-14 through B-16: Three Crosses. B-14 B-15 B-16 Problems B-17 through B-22: Variations of the 88 Square with Four Unit Holes. More interesting solutions can be sought for problems B-1, B-4 and Each pattern can be divided into congruent parts. The division is indicated by the heavy line. B-17 B-18 B-19 B-20 B-21 B-22 Problems B-23 through B-28: Variations of the 610 Rectangle. are over two thousand solutions to the basic 6  10 rectangular pattern. These six problems impose additional constraints to make the pattern more challenging. B-23 Obtain a solution to the 610 rectangle by constructing two simultaneous 65 rectangles. (Note that this solution can also form a 512 rectangle.) B-24 Build the 610 rectangle such that it contains (a) a 35 sub-rectangle. (b) a 45 sub-rectangle. Can the sub-rectangles be constructed so that it is completely contained within the larger rectangle?
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