Question 7
What is the least number of matches that must be moved so that the new figure contains exactly 11 squares?
Editorial task: retain the original question, then explain the missing placement rules and a checked counterexample to the printed minimum of 4. Compare the crossing planar-segment and non-crossing whole-match-grid constructions.
Original source options (retained):
(A) 2; (B) 3; (C) 4; (D) 5; (E) 6
Editorial format note: this essay examines the source wording and its assumptions. The original choices are retained for comparison.
Editorial task: retain the original question, then explain the missing placement rules and a checked counterexample to the printed minimum of 4. Compare the crossing planar-segment and non-crossing whole-match-grid constructions.
Original source options (retained):
(A) 2; (B) 3; (C) 4; (D) 5; (E) 6
Editorial format note: this essay examines the source wording and its assumptions. The original choices are retained for comparison.