Classic games, and a seat already open

Ten ships hidden on a ten-by-ten grid. Find them before they find you.

Sea battle with three weapons: torpedoes, air strikes and a radar sweep. Hit with any of them and you go again.

The whole game on a board you could have drawn yourself, on a proper chess clock: against the computer at three strengths, or against a friend on a link.

Draughts on an 8×8 board, by the rules you grew up with — with flying kings, or American checkers.

Noughts and crosses: three in a row on the classic 3×3, four on 4×4, or five in a row across a 15×15 page.

Open the field, count the mines round every number, flag the rest. On your own, or racing a friend across the same field.

Numbers round the edges say how many cells in each row and column are shaded. Work them out and a picture appears. Alone, or racing a friend.

Fill the grid so every row, column and box holds 1 to 9 once. Four levels, every puzzle solvable by logic. Alone, or racing a friend.

Slide the tiles, merge equal numbers, and build up to 2048 — or play endless, for the score alone. Alone, or race up to three friends to a tile, against the clock, or endless.

Klondike patience with every deal winnable. Draw one or three, undo as you like, or race a friend on the same deal.