✦ Problem of the Day
Letter Dice Puzzle
Jorge has three four-sided dice with a letter on each side. He rolls all three dice 8 times and tries to write a word using the letters he has rolled. On his sheet are now: DAL, DOR, GAT, IER, ONS, RIT, RED, VEN. Which four letters were on each of the three dice?
💡 View Hint
Each word uses exactly one letter from each die. Analyze letter co-occurrences: D appears with A, O, G, I, R, E, V. A appears with D, L, T, R, E, N. Find letters that never appear together (must be on different dice). Build the dice by finding a 3-coloring of the letter graph.
HardCombinatorics
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