英文關鍵字
black
board
building
chess
chessboard
chessman
classroom
digit
figure
fun
game
hobby
human
indoor
inside
intellectual
intelligence
king
knight
letter
light
logical
male
men
mind
motion
move
objects
pawn
people
plan
play
position
queen
school
set
square
stand
strategy
table
tactical
teach
think
timer
tournament
training
victory
white
window
wooden