Quick Summary of the Rules:
Take turns to shoot at ships. The first player to destroy all five of the other player's ships wins. Click on a tile on the right grid to shoot at that tile. White is a miss, red is a hit. Shoot around tiles where you hit ships to find where the ship is until it is destroyed.
UP: W, UPARROW, NUMPAD_7,8,9
LEFT: A, LEFTARROW, NUMPAD_1,4,7
DOWN: S, DOWNARROW, NUMPAD_1,2,3
RIGHT: D, RIGHTARROW, NUMPAD_3,6,9
Pressing the numpad keys in the corners will move the ship diagonally in that direction.
ROTATE: R, NUMPAD_PLUS
CONFIRM: SPACE, ENTER, NUMPAD_ENTER
SHOOT: LEFTCLICK
HIGHLIGHT: RIGHTCLICK