Connect Four Can Play Win

Given a Connect Four board and the current player, determine whether the player can win immediately by making exactly one move. Simplified Connect Four rules: The board size is fixed at 6 x 7. Each cell is one of: .: empty R: red piece Y: yellow piece A player chooses a column, and the piece falls to the lowest empty cell in that column. After the move, if the player has at least 4 consecutive pieces horizontally, vertically, or diagonally, the player wins. Return whether there exists at least one valid column where the current player can drop a piece and win immediately. Input Format row1 row2 row3 row4 row5 row6 player The first 6 lines describe the board from top to bottom. The last line is the current player, either R or Y. Output Format Print true or false. Example Input ....... ....... ....... ....... ....... ....... R Output false