http://webdiplomacy.net/board.php?gameID=43265

if anyone comments on this move then we know what country Culle plays and the game won't be anonymous anymore.
So pls respond in a more general way.

@Culle, are you saying you attacked with a unit that had a support hold issued to it? If so, the support hold was useless. You cannot support hold a unit that attempts to move, successful or not. The support will fail.

And no, I didn't look at the game in question because the broken English (no offense, plenty of folks to whom English is a second language on here) made me wonder what I would be looking for anyhow.

without looking at the game, let me take a shot at two common scenarios:

1. Convoys. Attacking a fleet that convoys a unit does not interrupt the convoy. Only if you displace the fleet will the convoy be interrupted.

2. Cutting the attacker's support. If you are attacked by two units (one supporting the other), it does not matter if you attack either unit (whether it be the moving or supporting unit). In such a scenario the attack displaces your unit.

These may or may not be applicable to your situation. They are just common scenarios.

(Full disclosure: I haven't looked at the particular match in question)
I'm going to guess that the question is basic and he doesn't quite understand the rules, so I'm going to explain them. If this isn't the case, just ignore this post...

it is a numbers game. Look at the rules in the 'help' section for more information, but here's my quick version:
if 1 unit attacks 1 unit, no replacement is made.
There is a concept of 'support':
'support move' is when an additional unit 'supports' the attack of a unit. So if you see a yellow line on an attack, that yellow line is the 'supporting' unit to the attack. So if you have 1 unit with 1 support attacking 1 unit holding, that is 2 attacking on 1, so the attacking wins the battle.

'support hold' is when a 2nd unit 'holds' and help defends the holding unit. If you see a green line up against a unit, the unit is having help defending his hold with the other unit. So if you have 1 attack with 1 support attack (2 attackers) against 1 unit with 1 support holding unit (2 defenders), the result is a 'bounce' (or, in your terms, the attack would be repealed).

Now, you moved... when moving, you cannot benefit from any support holds (cause you aren't holding), so, unless you won your battle and moved to a new location, you can be displaced by 2 (or more) attackers attacking your moving unit.

An example, you are england, france is your enemy.
France has a fleet in brest, an army in spa and a fleet in mao.
England has a fleet in gascony.
france holds brest, moves spa-gas, and mao support (attacks) spa-gas.
england moves gas-bre.
gas-bre fails (1 on 1) meaning gas didn't displace bre, so it remains in gas. Now spa is attacking your 1 unit in gas, with a support in mao. That is a 2 on 1, so spa wins and takes gas.

This is a basic setup in the game. There is a lot more to be learned (like cutting supports, attacking your own unit with supports so it can move, etc...), so if this is where your confusion is, I'd read over the rules, watch some of Edi's youtube tutorials and play around with something like jDip to understand how the game works (and watch some high level games and ask questions about it).

thx for so much reply. i´ve found my problem after a little conversation. i think i was a little bit confused.

That's good to know. Feel free to ask generic questions anytime, however remember that talking about an ongoing game is frowned upon and talking about an ongoing gunboat game is even more frowned upon.