Abstract
When commentators annotate chess games, they make use of various symbols to show their evaluation of moves or positions. For example, one might ind something like 23. Rel? -+, indicating that white’s 23rd move was bad (‘?’) and the position is now lost (‘-+’). Whereas ‘?’s can have game-theoretic significance, ‘!’s (“very good moves”) and ‘!!’s (“excellent moves”) do not (since it is not possible to turn a game-theoretically lost position into a draw or win). The meaning of a ‘!’s (and other evaluative symbols) must therefore be found, not in a game-theoretic analysis of the game, but rather in its “psychological” aspects.
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© 1990 Springer-Verlag New York Inc.
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Jansen, P. (1990). Problematic Positions and Speculative Play. In: Marsland, T.A., Schaeffer, J. (eds) Computers, Chess, and Cognition. Springer, New York, NY. https://doi.org/10.1007/978-1-4613-9080-0_10
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DOI: https://doi.org/10.1007/978-1-4613-9080-0_10
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