Fortunately, it was on a live board, so I was spared the hassle of watching the players play through it on an adjacent board.

My question to arbiters out there: What's the longest draw by repetition claim you've had to play through in full?
The claimant in the game today claimed that the game would be a draw by repetition after black plays 181...Kf6. This position occurred after black's move 162, 173, and 181. So there's 19 moves as a marker to beat.John Hickman wrote:Here's an ancillary question.
What's the largest number of moves apart between the first and last positions of a successfull 3-fold repetition claim from a recorded competetive game
This is exactly what happened in the game I was watching, if you substitute the Monroi for the DGT board. I'd say this was a good reason to use the DGT board; it's much easier for players to see the claim is correct, without the arbiter doing anything.Maxim Devereaux wrote:We were using those Monroi devices to record, and I vaguely seem to recall that it was possible to see the position after the three different moves, and confirm it was the same (which I'm sure should not really be possible).
How so? And how is this a good reason to use the DGT board? What has using a DGT board got to do with Monroi? DGT boards allow live broadcasts. Is that independent of recording the moves or an add-on to that capability? Surely the players see none of this, as opposed to Monroi where they can (it seems) flick back to earlier positions and check if they have been repeated (I agree that this is bad if it is possible, threefold repetition claims should be done only using sight of the scoresheet, nothing more, at least until everyone is using electronic inputting devices - checking a claim after it is made, sure, but not checking during the game to see if a claim is possible).Alex Holowczak wrote:This is exactly what happened in the game I was watching, if you substitute the Monroi for the DGT board. I'd say this was a good reason to use the DGT board; it's much easier for players to see the claim is correct, without the arbiter doing anything.Maxim Devereaux wrote:We were using those Monroi devices to record, and I vaguely seem to recall that it was possible to see the position after the three different moves, and confirm it was the same (which I'm sure should not really be possible).
As far as I am aware, DGT boards operate by sending moves to a local computer. The local computer records the game(s) in pgn format. To handle live transmission, the local pgn file(s) have to be loaded to a server.Christopher Kreuzer wrote: DGT boards allow live broadcasts. Is that independent of recording the moves or an add-on to that capability?
I think the computer will do it for you. I had a game about 3 years ago where my opponent made an incorrect claim of a draw by repetition, which the arbiter then incorrectly said was correct. After some discussion we ended up with the arbiter not wanting to play through the whole game again, and me not being prepared to accept a draw by repetition that hadn't happened. My opponent decided to go and see what the computer said. He came straight back to say that it was not reporting a three-fold repetition so he would accept that his claim was incorrect.Roger de Coverly wrote:As far as I am aware, DGT boards operate by sending moves to a local computer. The local computer records the game(s) in pgn format. To handle live transmission, the local pgn file(s) have to be loaded to a server.
So if you have access to the local computer, you can validate a repetition claim.
Roger has explained this correctly. It's possible to just click on the correct move of the game, and see that the diagram still has the same position. (Or not, as the case may be.) The claimant could recall which moves the positions were repeated on. If he couldn't, then we'd have had to play through the game, but it would still have been quicker to do that on the live board.Roger de Coverly wrote:As far as I am aware, DGT boards operate by sending moves to a local computer. The local computer records the game(s) in pgn format. To handle live transmission, the local pgn file(s) have to be loaded to a server.Christopher Kreuzer wrote: DGT boards allow live broadcasts. Is that independent of recording the moves or an add-on to that capability?
So if you have access to the local computer, you can validate a repetition claim. I would have though t only the arbiter can do this. On the Monroi gadget, I think you have diagram mode and scoresheet mode. So you can flip to any move in the game. You would need this in order to be able to correct input errors but it would also enable players to validate repetitions.
Some organisers like the Monroi as they can be easier to set up for live game transmission than DGTs.
But paying attention to possible changes in ep capture or castling I would hope.Alex Holowczak wrote:It's possible to just click on the correct move of the game, and see that the diagram still has the same position.
Absolutely. These weren't practical considerations in the position in question though.Alex McFarlane wrote:But paying attention to possible changes in ep capture or castling I would hope.Alex Holowczak wrote:It's possible to just click on the correct move of the game, and see that the diagram still has the same position.
I think this clearly constitutes note taking, so it's not allowed. You could do this in a round about, but legal, way if you wanted to. You record your clock time against the move you want to highlight the second time the position occurs (or omit a clock time if it is your normal habit to record clock times against each move).John Clarke wrote:If you're keeping score with paper and pen, and arrive at a situation where the position is being repeated on, say, a three- or four-move cycle - do I take it you're not allowed to make signs on the scoresheet to indicate first occurrence, second occurrence, etc of the repeated position? In other words, do you have to rely entirely on keeping track mentally? This would be pretty difficult, I think, in a game like that cited by Alex at the beginning of this thread.
I disagree with Ian.Ian Thompson wrote:I think this clearly constitutes note taking, so it's not allowed. You could do this in a round about, but legal, way if you wanted to. You record your clock time against the move you want to highlight the second time the position occurs (or omit a clock time if it is your normal habit to record clock times against each move).John Clarke wrote:If you're keeping score with paper and pen, and arrive at a situation where the position is being repeated on, say, a three- or four-move cycle - do I take it you're not allowed to make signs on the scoresheet to indicate first occurrence, second occurrence, etc of the repeated position? In other words, do you have to rely entirely on keeping track mentally? This would be pretty difficult, I think, in a game like that cited by Alex at the beginning of this thread.
Sometimes I make a move, and I'm filled with a sense of déjà vu. Haven't I seen this position before? Wasn't it my opponent's turn to move then as well? And didn't we both have the same castling and en passant rights?Alex Holowczak wrote: I disagree with Ian.
12.4 The scoresheet shall be used only for recording the moves, the times of the clocks, the offers of a draw, and matters relating to a claim and other relevant data.
Marking the first, second etc. occurrence of a repeated position on the scoresheet would come under the "matters relating to a claim" part of 12.4. In the claim I mentioned, the player marked (shortly after claiming the draw) the move number of the positions that were repeated. This speeded up the process!
I seem to remember that the claimant's opponent also underlined the previous pawn move or capture on his scoresheet. Again, this is allowed because it is a matter relating to a claim - specifically, he knows when his opponent might make a draw claim under the fifty-move rule.