Logic Masters Deutschland e.V.

True/False Snakes

(Published on 4. July 2013, 02:29 by kiwijam)

This type was invented by Prasanna Seshadri for the UKPC 2013 contest. It uses "Yajisan Kazusan"-style hints.

There are two puzzles to solve, the hints are almost the same, but the solutions are very different.

Instructions:

Draw a snake in the grid of unknown length. The head and tail of the snake are given. The body of the snake cannot touch itself, not even diagonally.

The numbers indicate the number of cells the snake visits in the direction of the arrow.

  • If the snake does not pass through a clue cell, then that clue is true.
  • If the snake does pass through a clue cell, then that clue is false.

Solution code: For every row (all of left grid, then all of right grid), give the number of cells that the snake covers.

Last changed on on 4. July 2013, 23:30

Solved by deu, r45, RALehrer, zorant, ibag, pokerke, cornuto, ch1983, rimodech, Statistica, pirx, Alex, moss, Elyot, saskia-daniela, Ute2, lupo, micke8, ffricke, matter, adam001, Saskia, AnnaTh, sandmoppe, ... BFaw, Sukram, CHalb, joyal, StefanSch, dm_litv, usp, Babsi, Luigi, zuzanina, tuace, Zzzyxas, PRW, fridgrer, rob, Joe Average, sf2l, Krokofant, ildiko, Matt, Uhu, FzFeather, dandbdi, misko, helle
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Comments

on 13. April 2014, 13:24 by tuace
Very well constructed :)

on 8. July 2013, 18:29 by pirx
@Saskia: Die linke Schlange stimmt, aber die Rechte .... Ist in der unteren Hälfte viel zu lang, und ich vermute mal, dass Du in der oberen Hälfte nach dem Kopf falsch abbiegst.

on 4. July 2013, 23:30 by kiwijam
German translation added. Thanks Gabi!

on 4. July 2013, 21:16 by Statistica
Great puzzle with interesting turns :-)

on 4. July 2013, 13:21 by ibag
Really a great construction!

Last changed on 4. July 2013, 10:15

on 4. July 2013, 10:14 by ibag
@kiwijam: I've sent a PM.

on 4. July 2013, 07:34 by r45
Very, very good.

Difficulty:3
Rating:93 %
Solved:53 times
Observed:7 times
ID:0001RB

Puzzle variant

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Solution code:

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