Duo to the Death

Blokus has taken over my life

XF Yasu, preliminary proposals

Posted by nand on December 17, 2009

Sorry for the nonposting here lately… I always tend to be a feast-or-famine blogger anyway, & it’s been a weird last few months with the new job. I’ve also been gradually thinking more about the game, though it’s hard to be too systematic. Gradually I’m learning that it’s really nearly impossible to “solve” ANY opening, even the weakest…. there are simply too many possibilities. I think there are 2 types of players — the ones who try to keep to the “known” & the ones who welcome the “unknown”. I wish I were more of the latter type of player — great instances would be Toutatis and Kolub68 (neither of whom seem to be on the site anymore, alas), & often Bobby_Bob too. Nowadays lerpyfirth (previously known for the repetitive use of the infamous XF Lerpyfirth opening) is of this type: to some extent it can be just a sign of someone bored with “the normal game” (or someone who specializes in 5-minute games), but it can also in the right hands be a powerful “ice-axe to break the frozen sea” of standard play.

But I’m not usually that type of player — I tend to stick to familiar openings & try to thoroughly understand them & judge them by optimal play. Anyway, it’s served me in good stead… as well as leading to a few disasters.

Anyway, I wanted to get back to the infamous FW opening, in part because I think my posting below is wrong. But in the meantime, I think I’ll start trying to put more useful info on this site.

So, XF Yasu. I’ve been thinking harder about this one lately. It’s a fave of mid-level players, but it’s rather weaker than XF Rubik in my view. Nonetheless, it can be tricky, & I have not come across an airtight orange response. Here are two of the more usual defence formations. In my view, these are flawed, but will — with good play, which I’ll try to flesh out in future posts — get you a close game or a win versus anything less than top-notch violet play.

Orange has an unblockable left side, and is threatening I5(D7u) on left or some variety of block on the right (usually T5 or L5 — I’ll let you figure out the orientation). I usually use this one — despite its flaws — simply because newbies and even midlevel players have no idea how to handle it as violet.

This may be better, though:

This gives you the option of I5, I4, N or something else on the left, depending on what violet plays on the right (assuming he DOES play on the right). I’m less familiar with this line & look forward to exploring it.

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One Response to “XF Yasu, preliminary proposals”

  1. Gerenuk said

    I would think that with the orange F defense the only violet option is to play I5 left (possible continuation violet N). Any weaker left attack gives a line similar to Rubik, but a win for orange.

    A violet move on the right seems to lose to orange I5 or N (unless someone manages to find an unblockable attack).

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