When I tried to find a c/3 diagonal spaceship in B3678/S34678 (Day and Night), ntzfind gives it:

Code: Select all

```
$ ./ntzfind B3678/S34678 p3 k1 x1 w8
ntzfind 3.0 by "zdr", Matthias Merzenich, Aidan Pierce, and Tomas Rokicki, 24 February 2018
- ./ntzfind B3678/S34678 p3 k1 x1 w8
Rule: B3678/S34678
Period: 3
Offset: 1
Width: 8
Symmetry: asymmetric
Horizontal offset: 1
Phase 0 has width 7
Depth limit: 2000
Stop search if a ship is found.
Starting search
..o.....
oooo....
.o.oo...
.o..oo..
..ooo...
....o...
Length: 16
Spaceship found. (1)
Current depth: 2001
Calculations: 32183
CPU time: 0.046000 seconds
Search terminated: spaceship found.
```

But ntzfind refuses to return a spaceship in B3ai/S2ae3aijr4aiw:

Code: Select all

```
$ ./ntzfind B3ai/S2ae3aijr4aiw p3 k1 x1 w10
ntzfind 3.0 by "zdr", Matthias Merzenich, Aidan Pierce, and Tomas Rokicki, 24 February 2018
- ./ntzfind B3ai/S2ae3aijr4aiw p3 k1 x1 w10
Rule: B3ai/S2ae3aijr4aiw
Period: 3
Offset: 1
Width: 10
Symmetry: asymmetric
Horizontal offset: 1
Phase 0 has width 9
Depth limit: 2000
Stop search if a ship is found.
Starting search
.o....o...
Length: 2
Search complete: 0 spaceships found.
Calculations: 10803
CPU time: 0.078000 seconds
```

Though I have this spaceship:

Code: Select all

```
x = 4, y = 4, rule = B3ai/S2ae3aijr4aiw
3o$o2bo$obo$bo!
[[ TRACK -1/3 -1/3 ]]
```

Bug or feature?

I'm using Cygwin.