Nimzo-Indian Defense: Three Knights Variation, Euwe Variation

Chess players who open with d4 aim to gain control of the center of the board and restrict the opponent's pieces. By playing d4, White aims to support the pawn on c4 and prepare to develop the knight to its optimal square, c3. The move order allows White to take control of the center before Black can do so. Additionally, White prepares to castle kingside and connect their rooks. This opening is a strong choice for players who like to play aggressively and control the board early on.

Black's move Nf6 is aimed at controlling the center of the board and developing a piece. By placing the knight on f6, Black effectively blocks White's pawn on d4 and prepares to attack it. Additionally, the knight on f6 puts pressure on White's pawn on e4 and prepares for possible pawn breaks with ...d5 or ...e5 in the future. This move also allows for Black's dark-squared bishop to be developed to its ideal square on b4. In sum, Nf6 is a flexible move that allows Black to plan their development and control the center.

White follows up their opening move with c4, which is also known as the Queen's Pawn Opening. By playing c4, White aims to control the central squares and gain space, while also freeing up their light-squared bishop for development. This move also prepares for the development of the knight to c3 and puts pressure on Black's pawn on d5. Additionally, it prevents Black from playing the move ...e5 to gain control over the center. In sum, c4 is a strong move that allows White to control the center while setting up their pieces for future development.

In the Nimzo-Indian Defense: Three Knights Variation, Euwe Variation, Black plays e6 in order to support their pawn on d5 and control the center of the board. This move also prepares for the development of Black's light-squared bishop on b7 and potentially their dark-squared bishop on f5. By playing e6, Black also prevents White's knight on c3 from jumping to the square d5. This move is a flexible response that allows Black to dictate the pace of the game and prepare for future development. In sum, e6 is a solid move that establishes control over the center while preparing for future play.

Following the opening moves of 1. d4 Nf6 2. c4 e6, White's next move is Nc3. By developing their knight, White aims to put pressure on Black's pawn on d5 and gain control of the center of the board. This move also sets up a potential future attack on Black's knight on f6 or prepares for a possible queen's gambit with dxc5. Additionally, Nc3 allows White to castle kingside and connect their rooks. This move is a strong choice for players looking to control the board early on and prepare for future development. In sum, Nc3 is a solid move that lays the groundwork for White's game strategy.

After the moves 1. d4 Nf6 2. c4 e6 3. Nc3, Black plays Bb4 as a part of the Nimzo-Indian Defense. This move pins White's knight on c3 and prevents it from controlling the central square, d5. Additionally, Bb4 puts pressure on White's pawn on c4 and prepares for Black's pawn break with ...d5 in the future. Moreover, the bishop attack on White's knight can potentially create weaknesses in White's pawn structure. By playing Bb4, Black also develops a piece and prepares for future play while controlling the board. In sum, this move is a flexible and versatile option in the Nimzo-Indian Defense.

In the Nimzo-Indian Defense: Three Knights Variation, Euwe Variation, White's next move after 3...Bb4 is Nf3. By developing the knight, White aims to control the central squares and reinforce their pawn on d4. This move also prepares for the future development of White's light-squared bishop and allows for potential pawn breaks with e4 or f4. Additionally, Nf3 prevents Black's pawn on d5 from attacking the knight on c3. This move is a flexible option that prepares for future play while maintaining control over the center of the board. In sum, Nf3 is a solid move that lays the foundation for White's game strategy.

After the moves 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3, Black responds with c5. This move aims to challenge White's control over the central squares and create counterplay. Additionally, c5 attacks White's pawn on d4 and helps to break up their pawn chain. This move also prepares for Black's queen knight to be developed to c6 or a potential pawn break with ...d5. By playing c5, Black opens up lines for their pieces and creates tactical possibilities for future play. In sum, this move is a dynamic and aggressive choice that allows Black to take control of the board.

After the moves 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5, White responds with d5, which is a strong break in the center of the board. By advancing the pawn, White aims to gain control of the central squares and create tactical possibilities with their pieces. This move also attacks Black's pawn on c5 and prepares for the development of White's dark-squared bishop and queen knight. Additionally, advancing d5 can disrupt Black's pawn structure and create weaknesses. By playing this move, White aims to create winning chances while maintaining control over the center. In sum, d5 is a strong move that sets up potential threats and creates practical advantages for White.

In the Nimzo-Indian Defense: Three Knights Variation, Euwe Variation, Black plays Ne4 after the move 5. d5. This is a strong move that attacks White's pawn on d5 and disrupts their pawn chain. By placing the knight on e4, Black also establishes control over the central squares and threatens to capture White's dark-squared bishop on b4. If White moves their bishop away, Black can potentially follow up with ...Qa5+ and create more threats. Additionally, Ne4 allows Black to coordinate their pieces and prepare for future play. In sum, this move is a dynamic and aggressive option that puts pressure on White and forces them to make tactical decisions.