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You just replayed Guido Jannis vs Piet Theunissen. On CipherChess, the same board opens up any game — check every move against the engine, prep the players you're about to face, and keep it all in one place that follows you everywhere.
See it for yourselfAbout this chess game
This chess game between Guido Jannis (1859) and Piet Theunissen was played at Lommel Summer Open in 2003 and finished ½-½. The opening was the Queen's Gambit Declined: Pillsbury Attack (D55).
You can replay the full game move by move on the interactive board above, or open it on the CipherChess analysis board to study every move with the Stockfish engine.
Looking for more Guido Jannis games or Piet Theunissen games? This Guido Jannis vs Piet Theunissen encounter is one of millions of chess games indexed in the CipherChess mega database. Browse both players' full records, the openings they play most, and head-to-head results, then load any game onto the board to prepare your own lines against the Queen's Gambit Declined: Pillsbury Attack.
Frequently asked questions
Who won Guido Jannis vs Piet Theunissen?
Guido Jannis vs Piet Theunissen (2003) finished ½-½, and the game was drawn.
What opening was played in Guido Jannis vs Piet Theunissen?
The game opened with the Queen's Gambit Declined: Pillsbury Attack (ECO D55).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Guido Jannis vs Piet Theunissen, or open it on the CipherChess analysis board to review it with the Stockfish engine.