### Cross the Streams by Mark Sweep

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

Theme: Four Slices of Pi

Author/Opus: This is the 8th puzzle from guest contributor Mark Sweep.

Rules: Standard Cross the Streams rules.

Difficulty: 4.5 stars

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

Solution: PDF and solving video.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.

### Cross the Streams (Neanderthal) by David Altizio

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Theme: Any Questions?

Author/Opus: This is the 10th puzzle from guest contributor David Altizio.

Rules: Standard Cross the Streams rules, except that the puzzle uses an early number system that only has the concepts of “one” and “many”. All number clues greater than 1 are represented by a + symbol.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 4:30, Master = 10:30, Expert = 21:00

Solution: PDF and solving video.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.

### Cross the Streams (Matching Sections) by Grant Fikes

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Author/Opus: This is the 392nd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Cross the Streams rules. Also, the grid is divided into 5×5 sections. It must be possible to pair sections up such that the shading of the section in each pair is identical. Sections may be rotated to be paired up, but not reflected.

Difficulty: 3 stars

Time Standards (highlight to view): Grandmaster = 3:30, Master = 4:30, Expert = 9:00

Solution: PDF and solving video.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.

### Cross the Streams by Grant Fikes

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

Author/Opus: This is the 391st puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Cross the Streams rules.

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00

Solution: PDF and solving video.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.

### Cross the Streams by Ashish Kumar

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

Theme: 2’s

Author/Opus: This is the 100th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Standard Cross the Streams rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:40, Master = 2:30, Expert = 5:00

Solution: PDF and solving video.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.

### Cross the Streams by Serkan Yürekli

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

Theme: Asterisk

Author/Opus: This is the 382nd puzzle from our managing editor Serkan Yürekli.

Rules: Standard Cross the Streams rules.

Difficulty: 1 star

Time Standards (highlight to view): Grandmaster = 1:05, Master = 1:45, Expert = 3:30

Solution: PDF and solving video.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.

### Cross the Streams by Grant Fikes

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Theme: 3 4 All

Author/Opus: This is the 368th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Cross the Streams rules.

Difficulty: 2.5 stars

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

Solution: PDF; a solution video is also available here.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.

### Cross the Streams by Grant Fikes

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

Theme: Goldilocks and the Three Question Marks

Author/Opus: This is the 358th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Cross the Streams rules.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 8:45, Master = 12:00, Expert = 24:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.

### Cross the Streams by Freddie Hand

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Theme: 1 to 5

Author/Opus: This is the 14th puzzle from guest contributor Freddie Hand.

Rules: Standard Cross the Streams rules.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:30, Master = 8:15, Expert = 16:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.

### Cross the Streams by Chris Green

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

Theme: Pairs

Author/Opus: This is the 12th puzzle from guest contributor Chris Green.

Rules: Standard Cross the Streams rules.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 3:15, Master = 6:15, Expert = 12:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.