根据8/11/2008 的update 3勘误修正后，stealth 和 invisible 的相关规则变成了这样：
PHB 188
Stealth (Dexterity)
Armor Check Penalty
Make a Stealth check to conceal yourself from enemies, slink past guards, slip away without being noticed, and sneak up on people without being seen or heard. This skill is used against another creature’s Perception check or against a DC set by the DM.
Stealth: At the end of a move action.
? Opposed Check: Stealth vs. passive Perception. If multiple enemies are present, your Stealth check is opposed by each enemy’s passive Perception check. If you move more than 2 squares during the move action, you take a –5 penalty to the Stealth check. If you run, the penalty is –10.
? Becoming Hidden: You can make a Stealth check against an enemy only if you have superior cover or total concealment against the enemy or if you’re outside the enemy’s line of sight.
Outside combat, the DM can allow you to make a Stealth check against a distracted enemy, even if you don’t have superior cover or total concealment and aren’t outside the enemy’s line of sight. The distracted enemy might be focused on something in a different direction, allowing you to sneak up.
? Success: You are hidden, which means you are silent and invisible to the enemy (see “Concealment” and “Targeting What You Can’t See,” page 281).
? Failure: You can try again at the end of another move action.
? Remaining Hidden: You remain hidden as long as you meet these requirements.
Keep Out of Sight: If you no longer have any cover or concealment against an enemy, you don’t remain hidden from that enemy. You don’t need superior cover, total concealment, or to stay outside line of sight, but you do need some degree of cover or concealment to remain hidden. You can’t use another creature as cover to remain hidden.
Keep Quiet: If you speak louder than a whisper or otherwise draw attention to yourself, you don’t remain hidden from any enemy that can hear you.
Keep Still: If you move more than 2 squares during an action, you must make a new Stealth check with a –5 penalty. If you run, the penalty is –10. If any enemy’s passive Perception check beats your check result, you don’t remain hidden from that enemy.
Don’t Attack: If you attack, you don’t remain hidden.
? Not Remaining Hidden: If you take an action that causes you not to remain hidden, you retain the benefits of being hidden until you resolve the action. You can’t become hidden again as part of that same action.
? Enemy Activity: An enemy can try to find you on its turn. If an enemy makes an active Perception check and beats your Stealth check result (don’t make a new check), you don’t remain hidden from that enemy. Also, if an enemy tries to enter your space, you don’t remain hidden from that enemy.
PHB 281
TARGETING WHAT YOU CAN’T SEE
If you’re fighting a creature you can’t see—when a creature is invisible, you’re blinded, or you’re fighting in darkness you can’t see through—you have to target a square rather than the creature. You also have to figure out which square to
attack. Here’s how it works.
Invisible Creatures and Stealth:
If an invisible creature is hidden from you (“Stealth,” page 188), you can neither hear nor see it, and you have to guess
what space it occupies. If an invisible creature is not hidden from you, you can hear it or sense some other sign of its presence and therefore know what space it occupies, although you still can’t see it.
Make a Perception Check:
On your turn, you can make a Perception check as a minor action (page 186) to try to determine the location of an invisible
creature that is hidden from you.
Pick a Square and Attack: Choose a square to attack, using whatever information you’ve gleaned so far about the target’s location. Roll the attack normally (taking the –5 penalty for attacking a creature that has total concealment).
If you pick the wrong square, your attack automatically misses, but only the DM knows whether you guessed the
wrong square or your attack just missed.
Close or Area Attacks: You can make a close attack or an area attack that includes the square you think (or know) the concealed creature is in. Your attack roll doesn’t take a penalty from the target’s concealment.
根据这个规则，可以如果你对目标有全掩蔽或全遮蔽时，你可以在任何一个移动动作结束时进行一次潜行鉴定，拿你的stealth对抗每个目标的被动perception，如果成功则对该目标hidden（目标无法知道你在哪格，同时你对该目标而言invisible(+5全防)）。会对这个检定产生惩罚的只有你在前面那个移动动作里跑步或在前面那个移动动作里移动了超过2格。
然后当你成功对一个目标hidden时，只要不发生：“1 你对一个目标没有掩蔽和遮蔽（不是全掩和全遮）；2 你大声喧哗或者做夸张的事；3 你乱跑，然后补的stealth check败了；4 你打人了。”的话，你就能保持对目标hidden。
一旦你遇上了上面提到的4种条件中的一种，那当你的动作结束时，你就不再对目标hidden了，但值得注意的事，你在做引发这些条件的动作时，你依然保持对该目标的hidden，只有当这个动作结束时，你才失去对目标的hidden效果。
敌人可以在他的轮里用minor action来试图用主动perception打败你上次的stealth结果，成功则你对他不再hidden，或者他可以直接跑过来试图踩在你头上（进入你的格子），成功则你对他不再hidden……
这样子的话，我能不能扮个狗头人（shifty： minor action shift 1square），做贼，拿把十字弓这么干：
Ｋ: kobold; Ｔ:target
| Ｔ
|
|
_____|
Ｋ
狗头在墙角开始回合
| Ｔ
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_____|
Ｋ
狗头用移动动作左移两格，对Ｔ有全掩蔽，然后狗头进行stealth检定（没有任何惩罚），假设成功，此时狗头对Ｔhidden了。
| Ｔ
|
|
_____|
Ｋ
狗头还剩标准动作+minor action，此时狗头使用贼的Deft Strike，右移2格攻击（一个标准动作），在这个动作结束前，狗头一直是hidden，因此T对狗头提供CA，何以被偷袭。
狗头的minor action随便做啥都可以，但这是对T已经不hidden了。
想问这想法是否可行，有没有与规则抵触的？因为有被动perception在，每次狗头潜行，只需要投一个stealth，用结果对抗所有有全掩的敌方的被动perception，同时作为对方主动搜索的检定难度就可以了，其复杂程度和个攻击骰没啥区别……
Deft Strike Rogue Attack 1
A final lunge brings you into an advantageous position.
At-Will ✦ Martial, Weapon
Standard Action Melee or Ranged weapon
Requirement: You must be wielding a crossbow, a light blade,
or a sling.
Target: One creature
Special: You can move 2 squares before the attack.
Attack: Dexterity vs. AC
Hit: 1[W] + Dexterity modifier damage.
Increase damage to 2[W] + Dexterity modifier at 21st level.
