WebChess only allows you to type moves in the "Your Move" area. Other commands are not accepted at this time.

CHESS command summary
----------------------------------------------------------------
g1f3      move from g1 to f3      quit      Exit Chess
a7a8q     promote pawn to queen   material  turn OFF
o-o       castle king side        easy      turn OFF
o-o-o     castle queen side       hash      turn OFF
bd        redraw board            reverse   board display
list      game to chess.lst       book      turn OFF
undo      undo last ply           remove    take back a move
edit      edit board              force     enter game moves
switch    sides with computer     both      computer match
white     computer plays white    black     computer plays black
depth     set search depth        clock     set time control
post      principle variation     hint      suggest a move
save      game to file            get       game from file
random    randomize play          new       start new game
----------------------------------------------------------------
Computer: Black        Opponent:            White
Random:   OFF          Easy mode:           ON
Beep:     ON           Transposition file: ON