# Puzzle 160: Condensed Dominos

I’m starting to question my choice of posting all the linkable practice puzzles before the corresponding WPC review post… This is a great take on the standard Domino dissection puzzle that keeps the core while making it logically richer and less susceptible to uniqueness deductions.

Rules Partition the grid into areas of size three, such that each domino can be placed within one of the areas.

Or see the instruction booklet.

# Puzzle 103: Keller, Fences+Dominoes

Next Keller puzzle. Some of the logic may have been lost in completing the domino part for this one. I find the restrictions that the compatible domino tiling imposes on the loop to be quite interesting in this type, the interaction with the domino puzzle as such less so.

Rules The left grid is a domino dissection puzzle. Divide the grid into 2×1-areas such that each domino occurs exactly once. The right grid is a standard fences/slitherlink.

The grids interact: Superimposed over the solved domino grid, the fence can’t bisect a domino.

# Puzzle 9: Domino Extra

Rules Find the whole set of dominos with numbers 1 to 6 by dividing the grid into orthogonally connected areas with two digits each.

This variation on the standard Domino puzzle featured on the Dutch round of last year’s WPC, there’s some more on Bram’s blog.

There should be two quite different ways to get started on this one.