Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Round | Circuit | Date | Pole Position | Fastest Lap | Winning Driver | Winning Team |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Fuji Speedway | 6 April | Tsugio Matsuda | Yuji Tachikawa | Tsugio Matsuda | Team Impul |
| 2.0 | Suzuka Circuit | 11 May | Tsugio Matsuda | Yuji Tachikawa | Tsugio Matsuda | Team Impul |
| 3.0 | Twin Ring Motegi | 25 May | Tsugio Matsuda | Tsugio Matsuda | Tsugio Matsuda | Team Impul |
| 4.0 | Okayama International Circuit | 8 June | Tsugio Matsuda | Satoshi Motoyama | Loïc Duval | Nakajima Racing |
| 5.0 | Suzuka Circuit | 13 July | Tsugio Matsuda | Hiroaki Ishiura | Tsugio Matsuda | Team Impul |
| 5.0 | Suzuka Circuit | 13 July | Satoshi Motoyama | Roberto Streit | Kohei Hirate | Team Impul |
| 6.0 | Twin Ring Motegi | 10 August | Tsugio Matsuda | Roberto Streit | Loïc Duval | Nakajima Racing |
| 6.0 | Twin Ring Motegi | 10 August | Takeshi Tsuchiya | Takeshi Tsuchiya | Seiji Ara | TOM'S Racing |
| 7.0 | Fuji Speedway | 31 August | João Paulo de Oliveira | Takashi Kogure | João Paulo de Oliveira | Kondō Racing |
| 7.0 | Fuji Speedway | 31 August | Kosuke Matsuura | Toshihiro Kaneishi | Kosuke Matsuura | Dandelion Racing |
| 8.0 | Sportsland SUGO | 21 September | Satoshi Motoyama | Loïc Duval | Tsugio Matsuda | Team Impul |
Question:
On what date does Yuji Tachikawa have the fastest lap in round 1?
Answer:
6 April