Link-Up and Nebula

Link-Up is a 1972 uncredited game, published at American Greeting Co.

there are two unavailable positions, at d4 and e6

Each player has 31 tiles of three different type (check below). The goal is to score points by making lines of connecting friendly lines, either orthogonally or diagonally.

The rules:

The different tiles provide different threats of making points, which seems an interesting idea. However, it is doubtful that players are able to score six or more lines in a row, given the board's size.

don't know why there are two unavailable placements,
 but I assume there's a good reason

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A similar n in-a-row game, where larger sequences get larger scores, is 1976's Nebula.