Chess game between Jakub Mittelstaedt and Kornel Siwek in 61. Miedzynarodowy Festiwal Szachowy im. Akiby Rubinsteina - OPEN C, Round 3.25. Result: 1-0.
Round 3.25 · Aug 18, 2025 · 1-0 · TC 90+30
C89 · Ruy Lopez: Marshall Attack
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