🔠 16x16 Sudoku

📖 How to play 16x16 Sudoku

1. It's a 16x16 sudoku with 4x4 boxes. Instead of 9 symbols, it uses 16: the numbers 1 through 9 and the letters A through G.
2. Every row, every column, and every 4x4 box must contain all 16 symbols with no repeats.
3. Select an empty square and choose the symbol on the keypad. Each puzzle has a unique solution.

💡 Tip: given its size, it helps to work "box by box" and use the symbols that already appear a lot to rule out options.