Giannis Antetokounmpo shone again for Greece with 20 points, 3 steals and 2 blocks
Greece kept Germany to just four points in the second quarter to grab a key 10-point advantage which helped them secure a 65-56 win, their second consecutive at the Sportland U20 European Championship in Estonia.
The Greeks are now tied with Lithuania at the top of Group A standings, although the Baltic side are facing Georgia later on Thursday, in their third game in the tournament.
Both opponents struggled offensively throughout the first half, but while the Germans turned the ball over 12 times and shot only 25% from the floor in general, the Greeks' main problem was their failure to connect with the basket from behind the three-point arc.
They had missed 14 consecutive shots from down-town when Giannis Antetokounmpo rose from the corner and buried a first triple with just 38 seconds left to play in the second quarter and almost at the buzzer, Lefteris Bochoridis imitated him from the top of the key to send Greece up 26-16 at the interval.
Antetokounmpo scored the first six points in the second half to give the Greeks their biggest lead in the game, 32-16, but almost immediately Bogdan Radosavljevic put an end to the German draught from the free-throw line.
The Germans were finally liberated offensively but although they came within three points on one occasion, Greece were serious and never looked in real danger to abolish the lead at any point.
Antetokounmpo finished with a team-high 20 points while Bochoridis, Ioannis Papapetrou and Michail Kamperidis scored 12 points each, the latter also collecting eight boards.
David Brembly came of the bench and scored 20 points on 4-for-6 three-point shooting and added seven rebounds for Germany, while Leon Tolksdorf had 13 points and five boards.