Victory goes to the player who makes the next-to-last mistake.
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[Event "rated untimed match"]
[Site "?"]
[Date "1950.??.??"]
[Round "?"]
[White "Barcza"]
[Black "Tarnovsky"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "1r6/p2Q2pk/6rp/2p2P1q/2PpP3/3P4/P2R3P/5R1K b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ In this position black played Rg5 and lost.|Can you find a better move for
black? } 1... Qf3+ 2. Rxf3 Rb1+ 3. Rd1 Rxd1+ 4. Rf1 Rxf1# 0-1