Puzzlerium tour: Touching Pentominoes

Rules: Place the complete set of pentominoes in the given grid without repetition. Pentominoes may be rotated and reflected but may only touch each other diagonally. All the points of diagonal contact are given as black circles. 

Puzzlerium tour: NoLITS

 Rules: Shade in some cells such that each outlined area contains exactly four shaded cells that either form a trimino, or a pentomino . No 2×2 square can be shaded completely. All shapes must be connected to form a single contiguous group of shaded cells. Identical figures, regardless of rotation or reflection, cannot share an edge. Any Xs mean the cell cannot be shaded.

About: NoLITS was conceived by Anurag Sahay in 2020

Puzzlerium tour: Quadrant Penta

Theme: Five in each quadrant 

Rules:  Place some of the pentomino shapes in the given grid without repetition. Pentominoes may be rotated and reflected but may not touch each other, not even diagonally. Every third cell used by pentominos, moving along the outlined quadrants and row by row within each quadrant, is given as a grey shaded cell. Given black cells, if any, will have to be left unused.

Puzzlerium tour: Consecutive Sudoku

 

Theme: 2022

Rules: Fill in the cells digits from 1 to 9 so that no digit repeats in any row, column or bold outlined region. Digits on either side of a circle are consecutive. Not all circles are given.

Puzzlerium tour: Barricade

Rules: Draw a single, non-intersecting loop, vertically or horizontally through the centres of the cells. A bold edge has the loop turn in at least one of the two cells that are adjacent to it. A thick dotted edge has the loop go straight through at least one of the two cells that are adjacent to it. 

About: “Barricade” was invented by Anurag Sahay

Puzzlerium tour: Pentoscope

  Thanks to Andrey Bogdanov for letting me use the graphics from his site.

Theme: ‘22

Rules: Place some of the pentomino shapes in the given grid without repetition. Pentominoes may be rotated and reflected but may not touch each other, not even diagonally. Given numbers indicate how many of the four neighbouring cells are used by the shapes.

Puzzlerium tour: Pentominous (Borders)

 Thought I would write something to commemorate the late physicist.

Theme: S. Hawking

Rules: Divide the grid along the gridlines and given outlined edges - ignoring shaded cells - into pentominoes such that every cell in the grid is a part of exactly one pentomino. Pentominoes of the same shape (rotations and reflections of a pentomino count as the same shape) cannot touch each other along an edge, but they may touch diagonally. 

Puzzlerium tour: Seamless

   

Rules: Divide the grid along the gridlines into areas of any size including 1-celled areas. No two areas may be identical (rotations and reflections are considered the same). Given edges are of two types - thick and dotted. One type indicates that the areas on either side of the edge are of equal size, while the other type indicates the areas on either side are of different sizes. 

About: “Seamless” was invented by Anurag Sahay.

Tapa

 

Theme: First Post

Rules: Paint some squares to create a continuous wall of connected cells. Number(s) in a cell indicates how many painted cells are contained in a continuous black cell block in its surrounding cells. If there is more than one number in the cell, there has to be at least one white cell separating the black cell blocks. Painted cells cannot form a 2x2 cell. Numbered cells cannot be painted.