Ada Pawns

Ada is playing pawn chess with Suzumo. Pawn chess is played on a long board with $N$ squares in one row. Initially, some of the squares contain pawns. Note that the colours of the squares and pawns do not matter in this game, but otherwise, the standard chess rules apply: - no two pawns can occupy the same square at the same time - a pawn cannot jump over another pawn (they are no knights!