Abstract
Various efficient game problem solvers are based on PN-Search. Especially depth-first versions of PN-Search like DF-PN or PDS – contrary to other known techniques – are able to solve really hard problems. However, the performance of DF-PN and PDS decreases drastically when the search space significantly exceeds the available memory. A straightforward enhancement trick to overcome this problem is presented. Experiments on Atari Go and Lines of Action show great practical value of the proposed enhancement.
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Pawlewicz, J., Lew, Ł. (2007). Improving Depth-First PN-Search: 1 + ε Trick. In: van den Herik, H.J., Ciancarini, P., Donkers, H.H.L.M.(. (eds) Computers and Games. CG 2006. Lecture Notes in Computer Science, vol 4630. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75538-8_14
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DOI: https://doi.org/10.1007/978-3-540-75538-8_14
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