theres a rule [it only works with gms]that no draws can be offered beforemove 30
if you duplicate a king move 3 times isn't it a draw?

theres a rule [it only works with gms]that no draws can be offered beforemove 30
That rule only applies to certain tournaments but a draw can still occur by repetition.

NOTICE: 3 move repition has to be declared by you- the computer will let you go 4-5 position reps and if you don't claim it, you've lost it. Not really different from having to call a steward for a score sheet check, but one gets so used to the computer inserting itself into your work, you can miss a hard fought draw.
Oh, in a USCF game, can you claim a repetition draw looking back at a set of moves made, or do you have to be in the process of reaching a rep position to claim it?

You can't look back. The usual rule is that you call a tournament official over to your board and explain your intention to play the move that results in a threefold repetition of the entire position. As has been mentioned in this thread, the position must be identical as to location of all pieces and pawns, the possibility of castling, en passant captures, which player is on the move, etc. (It does not matter, however, if the same position is repeated with pieces switched--for instance, if a pair of rooks of the same color or a pair of knights of the same color have somehow traded places in the intervening moves. It also does not matter which was the last piece moved to create the potential repetition; in at least one case, Bobby Fischer noticed at once that the position was about to be repeated three times even though it was a different piece moving to create the repetition each time.) The game score is then checked and if you are found to be correct in your claim the game is declared a draw.
On a slightly related theme, I knew one person who was losing on time, the only hitch being that in the time-control scramble his opponent had stopped keeping score, though he himself had not. The director asked our prospective loser to hand over his score sheet, and he promptly popped it into his mouth, chewed it up, and swallowed it, destroying the evidence. Now that is dedication!

Oh, Piscivori, thanks for the answer AND the interesting info on the knights. As for the score sheet eater, I bet he was the favorite of the directors after that!
we make 4 times same moves with my oponent. draw isnt being. how to get draw after 3 times repetition position?

Here Black can not claim a draw that after Nge7 he reached the same position for the third time.
Because the position has only been repeated twice. The first time white had the option to castle, the second and third times he does not.
the position has to repeat three times for threefold repetition to be claimed, the position includes castling and en passant rights

Don't forget, ANY three move rep can be any number of moves. If each side made, say, the same eight moves three times anywhere/time in the game (and fulfills the other rules) it's a draw.
Before your heads explode, the chances of that happening with more than a half dozen on the board is nearly zero, but does happen.
It's been a long-known issue that grandmasters will sometimes pre-arrange a draw because they can't be bothered playing so they play a game like the one a few posts above.
There are also known opening lines that lead to a draw by repetition.
I think I've also seen stalemate in 10 moves but it's contrived, and you can also of course contrive to reach a draw by insufficient material.
yea some puzzle guy did the stalemate in 10. There is a Ruy Lopez line that leads to a perpetual.
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2 10. Kxh2 Qh4+ 11. Kg1 Qxf2+ 12. Kh2 and repeat

sometimes it happens...when many pieces are on the board....& king is stucked...and opposite person fears that he will loose the game....if he finds three consecutive check from same square to king & king moves on the same place . there is no place to land the king....and push Amy material to avoid the check...then it is draw
Dear all. Mine 2 games ends by my loses by times up after 3 same positions. Here on chess.com works only 3 times repetitions (4 same positions) Unfortunately it is programators mistake that not follow Fide rules. I recommand you must count with this. Do not be upset - chess.com has only few mistakes and chess here is very playable. ☺
It doesn't work with me and i thought that it counted for all pieces?
If you read the comments you'll see it isn't real