No Four in a Row by Matej Uher
or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 1st puzzle from guest contributor Matej Uher.
Rules: Place either an ‘X’ or an ‘O’ into each empty cell so that four consecutive ‘X’s or ‘O’s do not appear horizontally, vertically, or diagonally.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 2:00, Master = 2:45, Expert = 5:30
Solution: PDF; a solution video is also available here.
Note: Follow this link for other Number Placement puzzles.
First time solving this type … took some time for the logic to flow
I wonder what the second part could be …
Prediction: Gur bgure chmmyr vf n pvcure fyvgureyvax
My own prediction: jvyyo rfanx rcvgk
Spoilers: Tbbq pnyy sebz Fhqtl, arire pbafvqrerq n pvcure. Fcrag n ybat gvzr gelvat gb fbyir vg nf n fanxrcvgk bayl gb cyht vg vagb n fbyire naq frr gurer jrer ng yrnfg bar uhaqerq gubhfnaq fbyhgvbaf nf jevggra.
Your solution is correct, but how did I arrive here… no idea. At least it was not 100% logical