White to play and win (hard)
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 → 
18.Qg4 Qb5 19.Qc4 Qd7 20.Qc7 Qb5 21.a4 Qxa4 22.Re4 Qb5 23.Qxb7 1-0
[Event "?"]
[Site "New Orleans"]
[Date "1920.??.??"]
[Round "?"]
[White "Edwin Ziegler Adams"]
[Black "Carlos Torre Repetto"]
[Result "1-0"]
[FEN "2r1r1k1/1p1q1ppp/3p1b2/p2P4/3Q4/5N2/PP2RPPP/4R1K1 w - - 0 18"]
[SetUp "1"]

18.Qg4 Qb5 19.Qc4 Qd7 20.Qc7 Qb5 21.a4 Qxa4 22.Re4 Qb5 23.Qxb7 1-0