Where is the Level 165 seed?

The opening penguin is at r10c2 in the separate light-green bottom pocket.

Which bottom-row cells are opening exclusions?

The opening Xs are r10c1, r10c3-r10c7, and r10c9-r10c10; r10c8 is open but is not the verified brown target.

After r9c7, place r4c6, r6c4, and r7c1 to complete ten penguins with Unbelievable and three hearts.

Zoodoku level guide

expert 10 colors

Solve the seeded 10x10 Zoodoku Level 165 board at r10c2, r5c8, r1c10, r3c9, r2c3, r8c5, r9c7, r4c6, r6c4, and r7c1.

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Keep the seeded penguin at r10c2 in the light-green pocket.
Place the next penguin at r5c8 in the separate rose region.
Place a penguin at r1c10 in the teal region.
Place a penguin at r3c9 in the yellow region.
Place a penguin at r2c3 in the upper pink region.
Place a penguin at r8c5 in the large green lower-center region.
Place a penguin at r9c7 in the brown lower-right region.
Place a penguin at r4c6 in the blue-gray region.
Place a penguin at r6c4 in the purple center region.
Finish at r7c1 in the orange region, then confirm ten penguins, three hearts, and Unbelievable.

Colors in this level:

Pink, Blue-gray, Teal, Orange, Purple, Yellow, Green, Rose, Brown, Light-green

Do not use unmarked r10c8 as the brown target; the verified brown placement is r9c7.
Do not choose blue-gray r3c8 for the yellow area; the source places the penguin at r3c9.

Board notes 5 details

Layout: The 10x10 board uses pink and blue-gray upper bands, a teal top-right singleton, orange and purple left/center corridors, yellow right cells, a separate rose pocket, green lower fields, brown lower-right cells, and the light-green seed pocket; exact row geometry is in the evidence note.
Goal: Keep the seeded penguin at r10c2 and follow r5c8, r1c10, r3c9, r2c3, r8c5, r9c7, r4c6, r6c4, and r7c1 for ten final penguins.
Opening: The seed is r10c2. Opening white Xs are r10c1, r10c3-r10c7, and r10c9-r10c10; r10c8 is unmarked.
Danger Zone: Do not substitute unmarked r10c8 for the brown target r9c7, or blue-gray r3c8 for yellow r3c9; the source records no red failures.
Mechanics: This seeded 10x10 route completes ten penguins with all three hearts intact, shows Excellent mid-route, and ends with Unbelievable.

Where is the Level 165 seed?
The opening penguin is at r10c2 in the separate light-green bottom pocket.
Which bottom-row cells are opening exclusions?
The opening Xs are r10c1, r10c3-r10c7, and r10c9-r10c10; r10c8 is open but is not the verified brown target.
What are the final three placements?
After r9c7, place r4c6, r6c4, and r7c1 to complete ten penguins with Unbelievable and three hearts.