This incident earned Matulović the nickname "J'adoubović". The 2003 European Championship saw a "takeback game" between Zurab Azmaiparashvili and Vladimir Malakhov, who eventually finished first and second in the event. According to the book Smart Chip by Genna Sosonko: Both grandmasters were fighting for the lead, and the encounter had huge sporting significance. In an ending that was favourable to him, Azmai[parashvili] picked up the bishop, intending to make a move with it instead of first exchanging rooks. Malakhov recalled: "Seeing that the rooks were still on the board, he said something like, "Oh, first the exchange, of course." put his bishop back, took my rook, and the game continued. I don't know what should have been done differently in this situation—in Azmai's place, some might have resigned immediately, and in my place, some would have demanded that he make a move with his bishop but I didn't want to ruin the logical development of the duel, so I didn't object when Azmai made a different move: the mistake was obviously nothing to do with chess! When we signed the score sheets, Azmai suggested to me that we consider the game a draw. After the game I was left with an unpleasant aftertaste, but that was due mainly to my own play." Illegal moves A dishonest player can make an illegal move and hope their opponent does not notice. The rules of chess have had differing penalties for making an illegal move over time, varying from outright loss of the game on the spot to backing the game up and adding additional time to the other player's clock, but they only apply when the illegal move is noticed. Normally, illegal moves are simple mistakes from time pressure, but if made intentionally are considered cheating. Intentional use of an illegal move is rare in high level games. In all but the fastest matches, sufficiently skilled chess players have a strong mental picture of the board state such that a manipulation is obvious, and the penalties from making an illegal move mean that it is rarely worthwhile if the cheating player is caught. A rare example where a high level player was accused of this was at the 2017 World Blitz Chess Championship in Riyadh. Ernesto Inarkiev was playing Magnus Carlsen, and with little time left on both players' clocks, Inarkiev made an illegal move by failing to remove Carlsen's preceding check.