Paper by Erik D. Demaine

Erik D. Demaine, Martin L. Demaine, Sarah Eisenstat, Adam Hesterberg, Andrea Lincoln, Jayson Lynch, and Y. William Yu, “Total Tetris: Tetris with Monominoes, Dominoes, Trominoes, Pentominoes, …”, Journal of Information Processing, to appear. Special issue of papers from the 19th Japan Conference on Discrete and Computational Geometry, Graphs, and Games

We consider variations on the classic video game Tetris where pieces are k-ominoes instead of the usual tetrominoes (k = 4), as popularized by the video games ntris and Pentris. We prove that it is NP-complete to survive or clear a given initial board with a given sequence of pieces for each k ≥ 5, complementing the previous NP-completeness result for k = 4. More surprisingly, we show that board clearing is NP-complete for k = 3; and if pieces may not be rotated, then clearing is NP-complete for k = 2 and survival is NP-complete for k = 3. All of these problems can be solved in polynomial time for k = 1.

The paper is 13 pages.

The paper is available in PDF (602k).
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Related papers:
Tetris_IJCGA (Tetris is Hard, Even to Approximate)

See also other papers by Erik Demaine.
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Last updated July 25, 2017 by Erik Demaine.