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1... R-32 opening ☖ pieces in hand: –
☗ pieces in hand: – |
1. R-78 opening ☖ pieces in hand: –
☗ pieces in hand: –
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In shogi, 1... R-32 (2手目☖3二飛 niteme san-ni hi) is a Third File Rook opening in which White's rook is positioned on the 32 square on White's first move.
When played by Black, the opening is known as 1. R-78 (初手7八飛 shote nana-hachi hi).
After Black's first move ▲7-six Pawn, if White aims for the Ishida Style, traditionally White would play 2nd move △3-four Pawn, followed by ▲2-six Pawn, △3-five Pawn, and so on. However, research showed that White often ended up with a disadvantageous position. Therefore, a new approach was devised where White deploys the Rook to the 3rd file on the 2nd move, aiming for the Ishida Style (see diagram 1). Subsequently, the game progresses with ▲2-six Pawn, △6-two King, ▲2-five Pawn, △3-four Pawn, and so forth. In this position, Black has the option of exchanging the Bishop with ▲2-two Bishop Takes, △Same Silver, and then playing ▲6-five Bishop (see diagram 2), allowing the creation of a Horse. Initially, this was considered disadvantageous for Black, but further research showed that Black also had promising moves, leading to the attention of professionals on the 2nd move 3-2 Flying Rook as a new strategy.
As a countermeasure from the Black side, there's a tactic of advancing the pawn to 9-six on the 3rd move. The exchange with △9-four Pawn is commonly believed to put Black in a slightly difficult position. From Black's perspective, allowing White to occupy the 9-fifth square is one possible development. Additionally, there's a strategy of playing ▲7-seven Bishop on the 3rd move, aiming for a Double Wing Rook formation. According to Kubo Toshiaki, as of 2011, there isn't a straightforward sequence that makes White's position significantly better.
In "The Chess View of Image and Reading," Hiroshi Tanigawa mentions an instance where he received this move from Toshiaki Kubo during a study session. In that game, it led to a sequence where ultimately White couldn't criticize Black's moves, and it ended up in mutual territorial enclosures. Tanigawa also expressed admiration after observing other official games. Akira Watanabe suggests that even though he sets up for the Ishida Style, in one game of shogi, since the Rook doesn't need to block the Bishop's diagonal, he doesn't have to play that move, but he admits that he struggles with whether to execute △3-two Flying Rook in the sequence ▲2-six Pawn, △6-two King, ▲2-five Pawn, △3-four Pawn, ▲2-two Bishop Takes, △Same Silver, ▲6-five Bishop, △7-four Bishop, ▲4-three Bishop Promoted, △4-seven Bishop Promoted, ▲5-eight Gold Right, △7-four Horse. Takeshi Fujii also regards this sequence as surprisingly challenging. Additionally, in the 2008 Oza Tournament, Yoshiharu Habu actually adopted it, with the result in professional games until August 2008 being 5 wins, 7 losses, and 1 repetition.
See also " Angle exchange rook #first move 7 eight flies (△3 two flies) angle exchange type "