Does Level 178 begin with a seeded raccoon?

No. The first decoded frame has no raccoon and no opening white X; the first accepted target is r2c4.

Are the white X marks errors on Level 178?

No. They are propagated logical exclusions; the reviewed source retains all three hearts and records no red failure.

The ninth and final raccoon is placed at r6c9 in the pink right-edge territory, followed by Unbelievable.

Zoodoku level guide

expert 9 colors

Zoodoku Level 178 is an unseeded 9x9 raccoon board; follow r2c4, r7c7, r1c2, r9c3, r8c5, r5c6, r3c8, r4c1, and r6c9.

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Place the first raccoon at r2c4 in the light-green singleton.
Place the second raccoon at r7c7 in the blue singleton.
Place the third raccoon at r1c2 in the green upper-left territory.
Place the fourth raccoon at r9c3 in the yellow lower-left territory.
Place the fifth raccoon at r8c5 in the mauve lower-center territory.
Place the sixth raccoon at r5c6 in the teal center territory.
Place the seventh raccoon at r3c8 in the brown upper-right territory.
Place the eighth raccoon at r4c1 in the orange left-edge territory.
Finish with the ninth raccoon at r6c9 in the pink right-edge territory, then confirm Unbelievable.

Colors in this level:

Green, Brown, Orange, Mauve, Teal, Pink, Yellow, Light-green, Blue

Do not tap a white-X cell around r7c7, such as r7c6; these are logical exclusions, not red failures.
Do not swap the lower-center route: the source accepts mauve r8c5 before teal r5c6.

Take the two singleton anchors first: r2c4, then r7c7; follow with r1c2 and r9c3.
Keep the lower-center pair exact as r8c5 then r5c6, and finish r3c8, r4c1, r6c9.

Board notes 5 details

Layout: The 9x9 opening has green across the upper-left, brown across the upper-right and center, orange on the left edge, mauve through the lower-left center, teal in the lower center, pink on the right edge, yellow at the bottom-left, and light-green and blue singleton anchors at r2c4 and r7c7.
Goal: Place nine raccoons at r2c4, r7c7, r1c2, r9c3, r8c5, r5c6, r3c8, r4c1, and r6c9 in the verified accepted order.
Opening: The first decoded frame is blank: no seeded raccoon and no opening X. Start at light-green r2c4, then use r7c7, r1c2, r9c3, and r8c5; white-X propagation begins after the first accepted placement.
Danger Zone: No red error is visible. White Xs around the blue singleton r7c7 are logical exclusions; the accepted lower-center targets are mauve r8c5 and teal r5c6, followed by the final pink r6c9.
Mechanics: This is an unseeded 9x9 raccoon board with nine successful placements, three hearts retained, no red error, and a final Unbelievable state.

Does Level 178 begin with a seeded raccoon?
No. The first decoded frame has no raccoon and no opening white X; the first accepted target is r2c4.
Are the white X marks errors on Level 178?
No. They are propagated logical exclusions; the reviewed source retains all three hearts and records no red failure.
What is the final raccoon placement?
The ninth and final raccoon is placed at r6c9 in the pink right-edge territory, followed by Unbelievable.