Note: This kind of puzzles, published in the New York Times magazine (April/May , 2026) is due to Prasanna Seshadri

• Problem 1
• Problem 2
• Problem 3
• Problem 4
• Problem 5
• Problem 6
• Problem 7
• Problem 8
• Problem 9
• Problem 10
• Problem 11
• Problem 12
• Problem 13
• Problem 14
• Problem 15