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It wasnt directed at anyone

If it was, its common practice to preface the directed comments with a name

Rigeld2 keep em comin!

lol

Rules say: ""if a moving jetbike begins or ends its move in difficult terrain, it must take a dangerous terrain test." (brb pg 72, emphasis mine)

Same in question form: "Did the moving jetbike start or end its move in difficult terrain" The possible scenarios are:
1) Unit did not begin or end its move in DT. Answer is no. => No DT test must be taken
2) Unit begun its move in DT. Answer is yes. => A (singular) DT test must be taken
3) Unit ended its move in DT. Answer is yes. => A (singular) DT test must be taken
4) Unit begun and ended its move in DT. Answer is yes. => A (singular) DT test must be taken

As others have said, english language or can be interpreted either as and/or (OR) or exclusive or (XOR). OR is the logical interpretation here, because for XOR interpretation requires that unit cannot both start AND end its move in DT.

Dangerous terrain test rules (brb pg 14) specify that it the DT test is taken only once per move. FAQ about disembarking to dangerous terrain supports this position.

As I said there is a weakness in the English language to properly define OR/XOR in such sentences.
"Did the moving jetbike start or end its move in difficult terrain"
In XOR you will have 2 conditions
Did the moving jetbike start its move in difficult terrain? True = a test
Did the moving jetbike end its move in difficult terrain? True = a test

See these sentences:

If I eat peanuts or corn I get a headache. -> if you eat peanuts and corn you will get a headache.

If I run over the speed limit or ignore a red light, I get a fine. -> If you run over the speed limit and you ignore a red light you get 2 fines.

copper.talos wrote:If I eat peanuts or corn I get a headache. -> if you eat peanuts and corn you will get a headache.

Actually if I eat peanuts and corn, nothing happens. You on the other hand will get 2 headaches

Hahaha! Correct! And having 2 heads can be a bummer

If A means "moves into diff terrain" and B means "moves out of diff terrain" and C means "take a dangerous terrain test", neither the assumptions "only one C" nor the assumption "possibly more than one C" are proven by
premise: if A then C
premise: if B then C
A or B
thus C

What you need to analyse is whether the writer intended "(if A then C) or (if B then C)" or if he intended "(if A or B) then C". I'm inclined to interpret it as the latter due to the position of the comma, myself, but since it's written in English rather than Mathematics who can tell?

copper.talos wrote:As I said there is a weakness in the English language to properly define OR/XOR in such sentences.
"Did the moving jetbike start or end its move in difficult terrain"
In XOR you will have 2 conditions
Did the moving jetbike start its move in difficult terrain? True = a test
Did the moving jetbike end its move in difficult terrain? True = a test

See these sentences:

If I eat peanuts or corn I get a headache. -> if you eat peanuts and corn you will get a headache.

If I run over the speed limit or ignore a red light, I get a fine. -> If you run over the speed limit and you ignore a red light you get 2 fines.

Again - interpreting it this way requires that the model moved more then once, which the rules explicitly forbid.
I'm saying this because you're requiring two separate actions - when the rules only allow you to make one.

It's one move with a starting and an ending point. You begin movement from the starting point and end it and the ending point. 1 move 2 different locations.

copper.talos wrote:It's one move with a starting and an ending point. You begin movement from the starting point and end it and the ending point. 1 move 2 different locations.

Correct.

However, if a moving jump infantry model begins or ends its move in difficult terrain, it must take a dangerous terrain test.

One move, a test. There's no permission there to force a second test.

1 move 2 tests if you are using XOR logic. We have been talking about XOR since yesterday...

copper.talos wrote:1 move 2 tests if you are using XOR logic. We have been talking about XOR since yesterday...

Except XOR isn't correct by context and by the rules.
Your move is one action - we've established that.

If you do X, a Y is required.
If you do Z, a Y is required.
If you do Z and X, a Y is required.

Using XOR if you do Z and X, a Y is not required.

If you cared to read the article in wikipedia that I posted then you would know that in English as in most modern languages the description of OR/XOR is confused. Read the example:

If you run over the speed limit or ignore a red light, you get a fine. -> If you run over the speed limit and you ignore a red light you get 2 fines.

The DT test is similar. Using XOR you get 2 tests.

copper.talos wrote:If you cared to read the article in wikipedia that I posted then you would know that in English as in most modern languages the description of OR/XOR is confused. Read the example:

If you run over the speed limit or ignore a red light, you get a fine. -> If you run over the speed limit and you ignore a red light you get 2 fines.

The DT test is similar. Using XOR you get 2 tests.

I did read the article. It doesn't apply because context shows XOR is an incorrect reading.

Dangerous Terrain, page 14 wrote:Roll a D6 for every model that has entered, left or moved through one or more areas of dangerous terrain during its move.

Jump Infantry upgrades difficult terrain to dangerous terrain.

Jump Infantry, page 52 wrote:However, if a moving jump infantry model begins or ends its move in difficult terrain, it must take a dangerous terrain test.

According to you, starting in dangerous terrain and moving out (on foot, not jumping) and going into another dangerous terrain piece is 3 tests per model. Heck, just leaving dangerous terrain on foot is 2 tests.
You're ignoring the singular tense of every statement in the rulebook on this subject - you only test once per move at most.

edit: evidence that supports OR not XOR:

BRB FAQ wrote:Q: If models disembark from a transport into
dangerous terrain, do they take a dangerous terrain
test? Unlike Pile-in or Consolidation moves,
disembarking does not specifically states that it doesn't
trigger dangerous terrain tests. (p67)
A: Dangerous terrain says you test for every model that
has 'entered, left or moved through' the terrain. As
there is no exception in the text, disembarking models
do have to test. However, if they disembark at the
beginning of their move and then move after the
disembarkation, only one test is needed, not two.

Um, XOR would give no tests if you start AND end in dangerous terrain.

1, 1 = 0 in XOR
1, 1 = 1 in OR

nosferatu1001 wrote:Um, XOR would give no tests if you start AND end in dangerous terrain.

1, 1 = 0 in XOR
1, 1 = 1 in OR

Been pointed out and ignored, so I was going with a different tact.

I just thought it was worthwhile pointing out as simply as possible....

nosferatu1001 wrote:I just thought it was worthwhile pointing out as simply as possible....

Fair enough.