For example, I touch my king with the left hand and my queen with the right hand at the same time. Regarding the rules, I must move a touched piece, so what would happen in this case? Could I choose which piece to move? Would I lose the game automatically when doing such an action?

Is using both hands allowed at all? (e.g.: moving one piece with both hands).

As far as I know, at least in blitz, you must use the clock and move the pieces with the same hand, so what would happen there if you use both hands when moving a piece or touching two different pieces with each hand?


From the FIDE Laws of Chess, article §4.1:

Each move must be made with one hand only.

So you are not allowed to make a move with both hands (this includes castling) and the arbiter can give you a penalty (§12.9) for this behaviour. IMHO, this should be a warning the first time you do it. In any case, because you touched the king and queen, you must make a move with either piece (§4.3):

If the player having the move touches (...) one or more of his own pieces, he must move the first piece touched that can be moved.

  • Ty for the quick answer, maybe you can answer me a second question: Can opponent insist on the touch rule if you touch a piece by accident? (e.g. touching it with ellbow when reaching for a bottle...)
    – kl78
    Nov 6 '15 at 16:49
  • 1
    I'd say no, because §4.3 explicitly says with the intention of moving or capturing.
    – Glorfindel
    Nov 6 '15 at 16:53
  • I was going to make a separate thread about this but seeing as you already answered here, I'll just ask you. What is the reason and history behind this rule ? It seems a bit ridiculous to get disqualified just because you touched another piece.
    – Saikat
    Jul 14 '16 at 15:36

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