BEBRAS 2025 Grade 3-4 Round 2 Ext Question 10

Anna must place one circle, one square, one triangle and one star on a 3 × 3 board. No other shape may share the circle’s row, the square’s column, or either diagonal through the star. The crossed-out cells in these examples cannot receive another shape.



Anna has already placed the circle, square and star as shown.



How many possible cells remain for the triangle?