1P-762P-343P-264P-44Gote closes the bishop diagonal with P-44, to decline a bishop exchange by Sente. This P-44 move also shows that Gote is playing a defensive strategy, which is the general idea of the 4th file rook. So generally, 4th file rook is a strategy for Gote, it is pointless for Sente to use a defensive strategy.5S-485.P-256.B-33Gote's Bishop climbs to 33 to defend the 24 square, not letting the rook pawn to be traded easily by Sente. This early P-25 is considered not good, because it let's Gote to play Opposing Rook (Mukaibisha).6R-42Gote's declaration of 4th File Rook!7P-56P-56 is pushed because it lets the silvers to move to 57 square to defend against the attack on the 4th file, or to advance and attack the 3rd file!8K-629K-68Both kings are safe to castle at this point.10K-7211K-7812K-8213G49-58Sente's king is in Boat Castle (Funa Gakoi)14S-7215P-3616S-3217P-2518B-3319S-68Left Silver-57 strategy starts with this S-6820P-9421P-9622G41-52Gote will finish up their Mino Castle.23S68-5724S-43At this point, Gote have 4 candidate moves to choose from. The lines from these moves will be discussed in future studies.