Chess

Chess was a game where a two players (one black/one white) move their pieces to try and capture their opponent's king.

A trap in the Tomb of Rassilon resembled a chess board. Nothing happened until a visitor reached the fifth row, and then the board became a giant death trap. (DW: The Five Doctors)

Chess was particularly favoured by the seventh incarnation of the Doctor when battling certain enemies (in particular Fenric). He was also accused by Ace and Bernice Summerfield as playing with their lives "as though you would a game of chess". (DW: The Curse of Fenric)

Morgaine stated that she could always beat the Doctor at chess. (DW: Battlefield)

K9 was programmed with all the championship games since 1866. (DW: The Androids of Tara)

Instances when played

 * K9 Mark I played chess against the Doctor in the TARDIS. (DW: The Sun Makers, The Androids of Tara)
 * Vislor Turlough and Tegan Jovanka played chess in the TARDIS. (DW: Enlightenment)
 * The Doctor also played a game of chess against Frobisher but the game had more than one board and some stood up vertically to form a cube. (DWM: War-Game)
 * Frobisher played chess against a Robotic arm. (DWM: Profits of Doom)
 * The Squire and Elizabeth played chess in the 17th century. (DW: The Visitation)
 * While battling Lady Peinforte, de Flores, and Cybermen, the Doctor and Ace traveled to 1638, where the Doctor played chess against an unknown opponent (thought to be Fenric). (DW: Silver Nemesis)
 * Haresh Chandra taught Luke Smith how to play chess, and was subsequently beaten by him six times in a row. (SJA: The Eternity Trap)
 * Darius Pike (with the help of K9 Mark 2) played chess against Starkey (aided by Jorjie Turner), Starkey beat him. The particular chessboard the were playing on had Animals as the chess pieces. (K9TV: The Fall of the House of Gryffen)