(A) Prove or Disprove That A $6 \times 6$ Checkerboard with Four Squares Removed Can Be Covered with Straight

question 9

Essay

(a) Prove or disprove that a $6 \times 6$ checkerboard with four squares removed can be covered with straight triominoes.
(b) Prove or disprove that an $8 \times 8$ checkerboard with four squares removed can be covered with straight triominoes.

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Definitions:

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A pioneering African American music publisher and insurance executive, influential in the development of Black-owned businesses in the early 20th century.

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An exclamation of worship or rejoicing, often found in religious contexts and used in various songs and hymns expressing praise.