human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "an algorithmic analysis of the honey bee game"
  Abstract: The Honey-Bee game is a two-player board game that is played on a connected hexagonal colored grid or (in a generalized setting) on a connected graph with colored nodes. In a single move, a player calls a color and thereby conquers all the nodes of that color that are adjacent to his own current territory. Both players want to conquer the majority of the nodes. We show that winning the game is PSPACE-hard in general, NP-hard on series-parallel graphs, but easy on outerplanar graphs. #R##N#In the solitaire version, the goal of the single player is to conquer the entire graph with the minimum number of moves. The solitaire version is NP-hard on trees and split graphs, but can be solved in polynomial time on co-comparability graphs.

Connected through hyperedge HE-1 (induced by source paper "the computational complexity of fire emblem series and similar tactical role playing games"):
  with members:
    - "computational complexity of games and puzzles"
    - "trainyard is np hard"
    - "on planar variants of the monotone satisfiability problem with bounded variable appearances"
    - "the computational complexity of portal and other 3d video games"
    - "candy crush is np hard"
    - "classic nintendo games are computationally hard"
    - "lemmings is pspace complete"
    - "the complexity of the puzzles of final fantasy xiii 2"

Connected through hyperedge HE-2 (induced by source paper "spanning trees and the complexity of flood filling games"):
  with members:
    - "the complexity of free flood it on 2ixn boards"
    - "the complexity of flood filling games on graphs"
    - "the complexity of flood filling games"

Connected through hyperedge HE-3 (induced by source paper "the complexity of free flood it on 2ixn boards"):
  with members:
    - "spanning trees and the complexity of flood filling games"
    - "the complexity of flood filling games on graphs"
    - "the complexity of flood filling games"

Connected through hyperedge HE-4 (induced by source paper "on complexity of flooding games on graphs with interval representations"):
  with members:
    - "spanning trees and the complexity of flood filling games"
    - "the complexity of free flood it on 2ixn boards"
    - "the complexity of flood filling games on graphs"
    - "the complexity of flood filling games"
    - "2 free flood it is polynomial"

Connected through hyperedge HE-5 (induced by source paper "the complexity of flood filling games on graphs"):
  with members:
    - "the complexity of free flood it on 2ixn boards"
    - "the complexity of flood filling games"

Connected through hyperedge HE-6 (induced by source paper "the complexity of flood filling games"):
  with members:
    - "tetris is hard even to approximate"
    - "the complexity of clickomania"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.GT(Computer Science and Game Theory)