Demon Slayer

In shogi, Demon Slayer or Demon Killer (鬼殺し onigoroshi) is a trap opening initiated by Black that characteristically advances their left knight blocking their bishop's diagonal.

For the manga series, see Demon Slayer: Kimetsu no Yaiba.
Demon Slayer
☖ pieces in hand: 角
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香桂 金王金 桂香1
 飛 銀   銀 2
歩 歩 歩歩 歩歩3
 歩 歩  歩  4
  歩桂角    5
         6
歩歩 歩歩歩歩歩歩7
       飛 8
香 銀金玉金銀桂香9
☗ pieces in hand: –

Later moves attempt an attack using a further advanced knight and also possibly against White's left silver.

If defended against properly by White, then it puts Black in an unfavorable position. Therefore, it is designed to trap novice players.

Development
Demon Slayer: The goal
☖ pieces in hand: 角角 桂 歩
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香   王金 桂香1
 飛       2
歩 龍 歩歩銀歩歩3
 歩 金  歩  4
         5
         6
歩歩 歩歩歩歩歩歩7
         8
香 銀金玉金銀桂香9
☗ pieces in hand: 銀 桂 歩歩

Defending against Demon Slayer
Demon Slayer: Proper defense
☖ pieces in hand: 角
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香桂銀 王金 桂香1
 飛     銀 2
歩 歩金歩歩 歩歩3
 歩 歩  歩  4
  歩桂角    5
         6
歩歩 歩歩歩歩歩歩7
       飛 8
香 銀金玉金銀桂香9
☗ pieces in hand: –

Demon Slayer can be defended against by moving White's right gold to 63.

New Demon Slayer

New Demon Slayer (新鬼殺し shin oni koroshi) is a variation of the Demon Slayer opening.

gollark: No, I mean I think M.2 slots can only deliver up about 15W or so max power, so you couldn't use more than that.
gollark: Also it would have to run on 15W.
gollark: I don't see why you would want it? They couldn't really be extra cores which seem like they're on the same CPU. They would, as I said, have to be an effectively independent computer with some kind of high-bandwidth link to the main one.
gollark: That would also be very impractical, unless you make the "extra cores" basically a small independent computer with its own RAM and stuff.
gollark: Connect PCIe devices, mostly, which you can do now.

See also

References

    Bibliography
    • Hosking, Tony (1996). The art of shogi. The Shogi Foundation. ISBN 978-0-95310-890-9.CS1 maint: ref=harv (link)
    • Kitao, Madoka (2011). Joseki at a glance. Translated by Kawasaki, Tomohide. Nekomado. ISBN 978-4-9052-2501-0.
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