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📘 29...Qh4?? 30.R.f4! R.f4 31.Qb5!! and the game is over!
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 2
⚪️Castellanos Rodriguez,Renier (2481)
⚫️Vila Dupla,Aurelio (2139)
🔸 1-0
📘 4.Q.d4
The hungarian variation is the alternative to the mainline. This variation has been tried by many top players including Carlsen, Karjakin, Andreikin, Nepom, Malakhov and Alekseev. The idea of Q.d4 can be either to set up a Maroczy bind by playing c4 or to lead in development and castle long.
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 2
⚪️Castellanos Rodriguez,Renier (2481)
⚫️Vila Dupla,Aurelio (2139)
🔸 1-0
📘 In general against Maroczy Bind black main plans are:

1. Simplification as he has less space.
2. Active play on dark squares after exchanging dark square bishops.
3. Attacking the center by either b5 or f5.
4. Transfering to hedgehog by playing e6.
In this position black has given his knight for white's light square bishop; therefore, it is much more difficult to implement the second plan and play on dark squares since black c6 bishop can not work on dark squares. Some of the plans that are played by top grandmasters are:
1. Korobov's idea for simplification by Nd7-c5-e6
2. MVL's plan of Nd7-c5 and Bd7 and f5.
3. Movsesian's plan of Qa5-h5
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 2
⚪️Perera Borrego,Maria Adela (2140)
⚫️Cuenca Jimenez,Jose Fernando (2490)
🔸 0-1
📘 11...Ra7!? An interesting typical idea to put pressure on central light squares by Qa8. Afterwards, black can consider Bc6 with the idea of activating the rook by either b5 or Rc7.
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 3
⚪️Vazquez Igarza,Renier (2578)
⚫️Vega Gutierrez,Sabrina (2373)
🔸 ½-½
📘This is another gambit named after Marshal. After
4.e4 d.e4 5.N.e4 Bb4+ 6.Bd2 Q.d4 7.B.b4 Q.e4 8.Be2 or 8.Ne2
white fully compensate the material disadvantage based on positional factors:
1. Strong dark square bishop
2. Inactivity if Bc8
3. weakness of dark squares in black's camp.
4.initiative
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 3
⚪️Suarez Uriel,Adrian (2406)
⚫️Sosa Suarez,Carla Cristina (1930)
🔸 1-0
📘 1.e4 e6 2.Qe2
This anti-French variation is named after Chigorin who first played it against Tarrasch in 1893.
This move is played against 2...d5 as after 3.e.d5 black is not able to take back with pawn. Black usually prefers to play 2...c5. In this case white can choose a king's indian attack setup by playing g3, Bg2, Nf3, d3 and 0-0.
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 3
⚪️Alshameary Puente,Ismael (2333)
⚫️ Arizmendi Martinez,Julen Luis (2513)
🔸 1-0
📘 12...Qb8!
A multi-purpose move:
1- Unpinned the black knight
2-The threat of Nxe4
3- to More control over e5 square
4-Transferring the queen to a7 as needed
If black had played ...c6 with the idea of Qc7 immediately, white could have played d5 and gained initiative.
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 3
⚪️Alshameary Puente,Ismael (2333)
⚫️Arizmendi Martinez,Julen Luis (2513)
🔸 1-0
📘 Arizmendi lost his knight after the careless 38...b5? 39.a3
He should have played 38...Rc1
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 4
⚪️Anton Guijarro,David (2651)
⚫️Cuenca Jimenez,Jose Fernando (2490)
🔸 1-0
📘 15.b4! Prevents black from playing c5 and initiates an attack on the queenside by a4, Nb3 and a5 increasing white's space. If black avoids white knight to reach c5 by playing b6 white will have the opportunity of opening the a file.
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 5
⚪️Suarez Garcia,Carlos (2463)
⚫️Ibarra Jerez,Jose Carlos (2561)
🔸 0-1
📘 We have a Karlsbad with both sides having castled on the queenside. White has two main plans in this position:
1. A minority attack by b4-b5 to open lines and create weaknesses in black's pawn structure.
2. A piece attack on queenside e.g. by Rc3-a3.
Black played an interesting defensive move 17...Ne8!.
If white chooses the minority attack the knight is aiming at c4 from d6 and if white playes Rc3-a3 black can defend a7 by transfering the knight to c8 to avoid creating weaknesses around his king.
🔸ESP-ch Men 2017 Las Palmas Gran Canaria
🔸Round 5
⚪️Suarez Garcia,Carlos (2463)
⚫️Ibarra Jerez,Jose Carlos (2561)
🔸 0-1
📘 17.Q.c6??
White has just considered 17...b.c6 18.N.c6 and 17...Qe4+ 18.Qc2.
What he has missed is:
17...Rc8! 18.Qb5 Rh1!!
White resigned. If 19.R.h1 Qe4 and mate follows.