Star Battle by Zoltán Horváth

Star Battle by Zoltán Horváth

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Pentominoes (Originally on 2014 Hungarian Puzzle Championship)

Author/Opus: This is the 2nd puzzle from guest contributor Zoltán Horváth.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 1:00, Master = 2:00, Expert = 4:00

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle by Thomas Snyder

Star Battle by Thomas Snyder

(View image directly for larger form.)

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Staircases

Author/Opus: This is the 197th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Star Battle rules. Three stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators. Enter both digits of any two-digit column number.

Time Standards (highlight to view): Grandmaster = 7:30, Master = 10:15, Expert = 20:30

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle by Thomas Snyder

Star Battle by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Anchor

Author/Opus: This is the 192nd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:30, Expert = 3:00

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle by Thomas Snyder

Star Battle by Thomas Snyder

(view image directly for larger form)

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Stars and Stripes

Author/Opus: This is the 183rd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Star Battle rules. Three stars per row, column, and region.

Answer String: Enter the column letter of the MIDDLE STAR in each row, going from top to bottom. Use capital letters only.

Time Standards (highlight to view): Grandmaster = 5:00, Master = 6:15, Expert = 12:30

Solution: PDF; a solution video is available here.

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle (Regional) by Prasanna Seshadri

Star Battle by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: UK – site of WPC in 2014 (originally on Indian Puzzle Championship)

Author/Opus: This is the 34th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Variation of Star Battle rules. Place an equal number of stars into each region so that each row and column has two stars. No two stars can touch, even diagonally.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 1:15, Master = 3:30, Expert = 7:00

Solution: PDF

Note: Follow this link for other variations on Star Battle and this link for classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle to Masyu Relay by Prasanna Seshadri

Star Battle by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a shape/star placement mode and linex mode where left click+drag draws lines and right click marks X’s)

Theme: Relay of Logic

Author/Opus: This is the 28th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Star Battle rules (ignore the shading). Then turn every star in a gray region into a black circle and every star in a white region into a white circle, and solve again as a standard Masyu puzzle. Ignore the region boundaries when drawing the Masyu loop.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Star Battles and this link for other classic Masyu.

Star Battle by Grant Fikes

Star Battle by Grant Fikes

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: May

Author/Opus: This is the 104th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:00, Expert = 4:00

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle by Thomas Snyder

Star Battle by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Man Made Out of Stars

Author/Opus: This is the 175th puzzle from Thomas Snyder aka Dr. Sudoku.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. If the number has two digits, just enter the unit’s digit (i.e. column “10” would be entered as 0). Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:15, Expert = 10:30

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Star Battle by Thomas Snyder

Star Battle by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Star-Crossed

Author/Opus: This is the 159th puzzle from Thomas Snyder aka Dr. Sudoku.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 1:20, Master = 1:45, Expert = 3:30

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Best of 2013: Object Placement Puzzles

As we start to celebrate 2014, let’s look back at some of the best object placement puzzles from the last year. This genre involves placing things into a grid, usually with specific touching rules driving the bulk of the logic. We had 39 puzzles in this genre last year, and one runaway winner for best puzzle. First, the very good (but not the very best) in the category:

Battleships (Yajilin) was one of Grant’s early contributions here and, with a set of battleship pieces in the grid as Yajilin clues was quite clever and well received. (The doubled battleships aspects of the theme pushed it into the object placement and not loop categories.)

Battleships (Yajilin) by Grant Fikes

Shipping Lanes from May was also highly rated. This Battleships puzzle was actually one of two created with this title/general theme in 2013; the other was kept for The Art of Puzzles (and if Dr. Sudoku ever gets his act together to publish this you’ll get to see it too!).

Battleships by Thomas Snyder

Amongst regular-sized Star Battles, Tom’s Throwing Star from September was a recent puzzle with a fair amount of favorite votes (or favourite votes, as he’d have us spell it).

Star Battle by Tom Collyer

The super-sized Clown from August got a good number of votes too among the Star Battles, over a quarter of the solvers who finished it marked it a favorite which is the best ratio in the category.

Star Battle by Thomas Snyder

But the puzzle with over 50% more votes than any other, the one that certainly went most outside the box in the category, was Grant’s Star Battle (Corrupted Regions). I’m sure you had the same reaction I did to reading the rule “Each region must contain some number of stars other than 2, including possibly no stars at all” — there’s no way that will work. And then it does. It may be a one-off puzzle, but it is the Best Object Placement Puzzle of 2013.

Star Battle by Grant Fikes

This PDF contains the Best of Object Placement category for 2013.