CBM training

on Wed Sep 12, 2012 5:21 pm by · on Wed Sep 12, 2012 5:21 pm by

Learning from the Chess Olympiad

- Volokitin's Breakthrough
- Race of the Passed Pawns
- Race of the Rook's Pawns
- Oswaldo Zambrana's Octopus

http://www.chessbase.com/newsdetail.asp?newsid=8469

on Fri Sep 14, 2012 10:17 am by · on Fri Sep 14, 2012 10:17 am by

Ivanchuk in Istanbul

The first player has sacrificed a piece to invade with his rook on the 7th rank, but the calm 24.Raf1 in the diagram position would allow the excuse 24...Qxg2+. The alternative 24.gxh7+ Kxf7 leads to ...

A) ... a white victory by force
B) ... perpetual check
C) ... a winning position for Black

CBM training - Page 2 Iva_wan_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8476

on Fri Sep 21, 2012 6:35 pm by · on Fri Sep 21, 2012 6:35 pm by

Good choice?

The second player has parried the attack on her rook e8 with 15...Be6-d7 (diagram), leaving the pawn d5 momentarily without sufficient protection. Now the capture 16.Nxd5 earns White ...

A) ... the loss of a piece;
B) ... the win of a pawn;
C) ... an endgame advantage with material equality.

CBM training - Page 2 Muz_kos_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8493

on Sat Oct 06, 2012 2:18 am by · on Sat Oct 06, 2012 2:18 am by

Deflection sacrifice

The white squares in Black's camp are vulnerable. What can the first player achieve in the diagram position by playing 45.Bh5+ Kxf5 46.Qxf5+?

A) win of the queen
B) win of a pawn
C) only perpetual check.

CBM training - Page 2 Dragun_Barwinski2012_g

CBM training - Page 2 Dragun_Barwinski2012_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8530

on Sat Oct 20, 2012 5:46 am by · on Sat Oct 20, 2012 5:46 am by

Your judgement, please

In this position with mutual rook batteries and knight forks, three continuations are to be considered - one wins for White, one for Black and one leads to a roughly equal situation. Make your pick!

A) 47...Qa7 48.Qxd6
B) 47...Qa7 48.Ng5+
C) 47...Ne5 48.Rxe5

CBM training - Page 2 Kon_bro_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8565

on Fri Oct 26, 2012 9:58 pm by · on Fri Oct 26, 2012 9:58 pm by

Open for everything

The first player is better developed and wants to exploit the diagonal b2-g7 as well as the e-file.
The sequence 15.Nd5 exd5 16.Bxg6 fxg6 17.Qxd5+ leads to what?

A) victory for White;
B) victory for Black;
C) a dynamically balanced position.

CBM training - Page 2 Gha_nai_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8581

on Mon Nov 05, 2012 5:58 pm by · on Mon Nov 05, 2012 5:58 pm by

Draw okay?

In the diagram position there followed 41...Ne5 42.f6 Qd7+ 43.Kg2 Qd5+, and after 44.Kh3 Qd7+ the game ended with a perpetual check.
Who missed the win in this sequence?

A) White;
B) Black;
C) neither, everything was correct.

CBM training - Page 2 Pia_kam_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8608

on Fri Nov 09, 2012 4:47 pm by · on Fri Nov 09, 2012 4:47 pm by

Queens and rooks

With 26.Re1-e8 (diagram) the first player has taken control of the enemy back rank.
The opponent's attempt to follow suit with 26...Rd4-d1+ leads to ...

A)... advantage for White;
B)... perpetual check by force;
C)... advantage for Black.

CBM training - Page 2 Vol_ger_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8620

on Mon Nov 12, 2012 5:51 pm by · on Mon Nov 12, 2012 5:51 pm by

- The sharp endgame weapon zugzwang
- Chernyshov's Counterblow
- Milliet's missed chance

http://www.chessbase.com/newsdetail.asp?newsid=8629

on Fri Nov 16, 2012 4:50 pm by · on Fri Nov 16, 2012 4:50 pm by

Dark-squared invasion

White's queen on a3 is controlling the vital diagonal to f8.
Which continuation gives him the win?

A) 29.Qc5 Nd6 30.Rxb5 (Nd7)
B) 29.Bb6 Qxb6 30.Bxc4+ Kh7 31.Qxf8
C) both
D) neither

CBM training - Page 2 Jon_pal_g

Solution: http://www.chessbase.com/newsdetail.asp?newsid=8638

on Thu Dec 06, 2012 3:21 pm by · on Thu Dec 06, 2012 3:21 pm by

The Beauty of Chess Tricks! smile

http://www.chessbase.com/newsdetail.asp?newsid=8674

by