Gomoku
Gomoku, also called "Five in a Row", is an abstract strategy board game. It is traditionally played with Go pieces (black and white stones) on a Go board, using 15×15 of the 19×19 grid intersections. Because pieces are not moved or removed from the board, Gomoku may also be played as a paper-and-pencil game. The game is known in several countries under different names.
Gobblet
The game is played on a 4×4 board. Each player has 12 pieces of the same colour but different sizes. Players take turns to place a piece on the board or move their piece that already is on the board. Bigger pieces can be placed so that they cover smaller ones. A player wins by placing four pieces of the same colour in a horizontal, vertical, or diagonal row.