英文關鍵字
black
board
building
challenge
chess
chessboard
competition
entertainment
figure
fun
game
hobby
human
indoor
inside
intellectual
intelligence
king
knight
light
logical
male
men
mind
motion
move
objects
pawn
people
plan
play
position
queen
set
stand
strategy
table
tactical
think
timer
tournament
training
victory
walk
white
win
window
woman
wooden