The Number of Inequality Signs in the Design of Futoshiki Puzzle

Kazuya Haraguchi. The Number of Inequality Signs in the Design of Futoshiki Puzzle. JIP, 21(1):26-32, 2013. [doi]

@article{Haraguchi13,
  title = {The Number of Inequality Signs in the Design of Futoshiki Puzzle},
  author = {Kazuya Haraguchi},
  year = {2013},
  doi = {10.2197/ipsjjip.21.26},
  url = {http://dx.doi.org/10.2197/ipsjjip.21.26},
  researchr = {https://researchr.org/publication/Haraguchi13},
  cites = {0},
  citedby = {0},
  journal = {JIP},
  volume = {21},
  number = {1},
  pages = {26-32},
}