Traffic Lights

Everyone knows how traffic lights work: -Red turns into yellow, -Yellow turns into green. -Green turns into red. ... -Loop continues all day long. At the traffic lights game, consider only the first two: -Red into yellow, -Yellow into green, -And the loop ends here; green stays green forever. The Goal At the traffic lights game, the goal is to line up the same colors in the same row, column or diagonally. Like in the game of x-o-x. Instructions -Two-player game. Players will make their move in order. -It has an empty 3x3 square in the beginning. -When a player is making his/her move, he/she must either: -Play red into an empty square, -or turn the color of an existing red into yellow, or an existing yellow into green. How to play The game will look like the following at the start:
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Use the ticks on the right hand side to make your moves:
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For empty squares, you can only play red. For squares that have red, you can turn it to yellow. For squares that have yellow, you can turn it to green.
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One example. Here, you can either turn one of the reds into yellow, or place a red into an empty square.
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In this example, there is a winner with all greens diagonally:
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Have fun!