🔺White plays Bf4 to overprotect e5. Aron Nimzowitsch was the first person who explained, in "My System", about overprotection.🔺

🔸Fide World Cup 2017
🔸Round 4 game 2
⚪️Anish Giri
⚫️Vassily Ivanchuk
🔺½-½

🔺One of the interesting ideas of this structure to control the d4 and e5 squares and transffering the knights to those places🔺

⚪️ #19 (Strategy - White To Move)

🔹#19
1.Qa4! A simple, but deadly strong move. Transferring the queen to the kingside offers White an opportunity to develop an
irrefutable attack🔹

⚫️ #20 (Strategy - Black To Move)

🔹#20
1...Ra5 The rook goes to c5 in order to build up pressure against the backward c2-pawn. But it also looks at the kingside, where
it is going at the earliest opportunity, for example, 2.Bg5 Nf3+! 3.Rxf3 Rxg5-+🔹

🔴 #9

Vladimir Kramnik

1.Rxe2! Qxe2 2.Rxg7+ Kxg7 [2...Kh8 3.Qh7#] 3.Bxh6+ Rxh6 [3...Nxh6 4.Qxe2±] 4.Qxe2+- 1-0

⚪️ #21 (Strategy - White To Move)

📕Unity Chess Multiple Choice 21
anonymous poll

A: Na3 – 28
👍👍👍👍👍👍👍 88%

B: a4 – 4
👍 13%

C: Rfd1
▫️ 0%

👥 32 people voted so far.

⚪️ #22 (Strategy - White To Move)

📕Unity Chess Multiple Choice 22

C: Ra2 – 29
👍👍👍👍👍👍👍 73%

B: g3 – 6
👍 15%

A: Qb2 – 5
👍 13%

👥 40 people voted so far.

🔺 Round 4 Tie -Breaks 🔺

🔸Fide World Cup 2017
🔸Round 4 Rapid Game 1
⚪️Xiangzhi Bu
⚫️Peter Svidler
🔺0-1

🔸Fide World Cup 2017
🔸Round 4 Rapid Game 1
⚪️Wesley So
⚫️Baadur Jobava
🔺1-0