29 March 2011

The Cheshire Cat

Originally, I wanted to write something about Alice's Adventures in Wonderland, more precisely about chapter six of the book. But midway through thinking about it, I (partially) changed my mind.

John Nunn Once again, I present some helpmates, this time four compositions by the famous British mathematician, FIDE GM (Grandmaster of FIDE for over-the-board play) and WFCC GM (Grandmaster of FIDE for chess solving) John Nunn (photo courtesy of ChessBase). He was the third person ever to gain both titles, the others being Jonathan Mestel and Ram Soffer. Since 2008, there is a fourth, namely Bojan Vučković.


  1John Nunn  
The Problemist 11/2005
[8/8/8/8/2pk4/p7/p2Kpp2/R4r2]
  h#4*(2+7)  

  2John Nunn  
The Problemist 03/2005
[8/8/4p1R1/4r3/rk2q3/n7/5PP1/5K2]
  h#4,5(4+6)  


  3John Nunn  
The Problemist 03/2005
4th Honourable Mention
[8/4q3/3b4/1p1k4/1p6/1P1K1p2/nPBR1P2/8]
  h#3      2.1...(6+7)  

  4John Nunn  
The Problemist 07/2006
3rd Prize
[b7/6p1/8/4NPpp/4k1rp/1R6/P1p5/b6K]
  h#3      2.1...(5+9)  

Solutions:
1 *1. - Kxe2 2. Kc3 Rxf1 3. Kb2 Kd1 4. Ka1 Kc2#
1. e1=N Rd1 2. Nf3+ Kc2+ 3. Ke3 Rd4 4. Ke2 Re4#
Totally different play in the set compared to the solution.
2 1. - Rh6 2. Ra5 Rh2 3. Qxg2+ Ke2 4. Qxf2+ Kd3 5. Qc5 Rb2#
I immediately liked that maneuver of the white rook.
3 I) 1. Be5 Rd1 2. Qc5 Kd2 3. Kd4 Ke1#
II) 1. Bf4 Bb1 2. Qe5 Kc2+ 3. Ke4 Kd1#
Perfect analogy.
4 I) 1. Kd4+ Rb7 2. Kc3 Nf3 3. Rc4 Rb3#
II) 1. Kxf5+ Nc6 2. Rd4 Rf3+ 3. Kg4 Ne5#
Switchback of rook and knight respectively delivers a model mate.

1 comment:

HeinzK said...

"Totally different play in the set compared to the solution."

Isn't there supposed to be some kind of coherence? I never understand the criteria. I do like all these problems, though. Thanks & keep smiling! :)