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Tuymaada 2010, Junior League, Problem 1

Source:

July 18, 2010
combinatorics unsolvedcombinatorics

Problem Statement

Misha and Sahsa play a game on a 100×100100\times 100 chessboard. First, Sasha places 5050 kings on the board, and Misha places a rook, and then they move in turns, as following (Sasha begins):
At his move, Sasha moves each of the kings one square in any direction, and Misha can move the rook on the horizontal or vertical any number of squares. The kings cannot be captured or stepped over. Sasha's purpose is to capture the rook, and Misha's is to avoid capture.
Is there a winning strategy available for Sasha?