I am suprised not to see anybody to speak in more detail in favour of the Norwegian attack I call Norwegian gambit, that has become the standard opening for me. I do send both figs though, sacrificing one of them, hence gambit. I feel it is absoluteley essential for the Russians to get the UK help as soon as possible and the survival of the UK BB is simply priceless in this respect. In my games most of the time UK is able to hold Norway from R2 due to the Norwegian attack which I think is absolutely crucial.
I have elaborated more on the Norwegian gambit in another forum so let me add few other notes here. It includes taking NOR with all you can (3inf, tnk, 2 figs) which 89 % likelihood, and sending the rest but the arch units to WR (100 % with 8,4 units remaining). Of course, you are leaving cauc empty with just one inf but you do not need to worry, you will get it back.
There is also always at least one inf in karelia at the end of R1 from arch to make norway more difficult to retake for germany. If both attacks went exceptionally good (happens much more often than a failure in one of them), you can save both figs, and move all 3 arch inf to kar with the sacrificed fig, to make it more costly for germans to retake. Otherwise, I just take the last hit on the lame fig above norway and send the 2 inf from arch to reinforce WR.
Germany can of course attack WR with quite a good likelihood of succes most of the time on G1 which i think scares most of the people of playing Norwegian gambit. But closer look shows IMHO there is not so much to worry about. Any single fig Germany does not send there makes the likelihood substantially lower, and you really do not want to skip all the other attacks as a German player do you? So what you ussually see is Germany doing the 2 med SZ, AE, nor, kar, cauc and painfully considering WR, with Nor, SZ 13 and AE all potentially risky attacks.
Now, if the Germans really commit to WR, let us see what are the odds. Say you have in WR standard 5inf, 2 art, 3tnk and AC gun at the end of R1. Germans can bring 6 inf, art and 3tnk as their ground units if they skip cauc which they have to. This on its own gives them 33 % so you still need to send some air. With 1 fig it is 56 % with 2 units alive and this is too high a risk, with 2 figs it gives them 73 % with 3,5 units alive which looks nice… but what if AA gun hits which should happen exactly 1 in 3 times? So you better send 3 figs. Then it is 85,5 with 4,8 units alive which is just fine – almost as good odds as for the russia to take NOR. But at the same time this is max you can send if you do not want to skip other vital attacks altogether. And just one AC gun hit still can turn things really ugly for Gerrys. And German remaining WR units are doomed anyway taking with them aprox. 2 more russian infs.
On G1 though you are left with just a bmb and two figs to clear SZ 15, do AE and kar or nor. All of the attacks supported with just one plane. And you skipped cauc, you better skip nor or kar, or you take really crazy risks somewhere. It also means you need SZ 8 sub in SZ 13. Thus UK has SZ1 trannie alive and FOUR UK units landing Norway R1.
And the worst is usually still to come, because most of the time one of the attacks goes bad for the Germans which is perfectly in the likelihood. The combined likelihood of the failure of one of the 4 attacks (SZ13, AE, KAR/NOR, WR) is usually around 50 %. Hence although you see the players mumble about bad luck the naked truth is they were lurked into taking grossly risky decisions. Which is exactly where you want to have them.
What will happen next, most of the time is Russia will retake WR with hardly any loss and no chance for Germans to take it back R2, Russia will still be able to trade kar, retake and hold cauc R3 the latest and Germany will be in trouble since UK will put a pressure on it from R2 being able to threaten EE, WEU and indeed Germany itself with 8 units from R3. I took Germany R3 with UK more than once. But even without the aid of your opposition’s blunders you make the great use of the battleship that will allow you to spend precious UK IPCs on trannies and ground units much earlier. The bb will give you all the value for the sacrificed russian fig.
Although I lost twiced with severely suboptimal dice, this opening remains for me the best of all Russian options. Because although I cannot recommend attacking WR on G1, many times it just might be the best option Germany has.