MESON Chess Problem Database
Problem Display
PID: 137791 (8/8/1K6/1N6/kp6/P7/R1P5/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
1st Prize, Pustovoi MT, 2003
#2
5 + 2
| 23 | Die Schwalbe | 2010 |
SOLUTION
- SOUND
- Sets
- 1...b3
- 2.Sc3#
- 1...b3
- Tries
- 1.Kc5?
- threat
- 2.axb4#
- 1...Ka5
- 2.axb4#
- 1...bxa3
- 2.Rxa3#
- 1...b3!
- threat
- 1.Ka6?
- 1...b3
- 2.Sc3#
- 1...bxa3!
- 1...b3
- 1.Sd4?
- 1...b3
- 2.cxb3#
- 1...bxa3!
- 1...b3
- 1.Ra1?
- 1...b3
- 2.Sc3#
- 1...bxa3!
- 1...b3
- 1.Kc5?
- Keys
- 1.Rb2!
- threat
- 2.Rxb4#
- 1...bxa3
- 2.Sc3#
- 1...b3
- 2.cxb3#
- threat
- 1.Rb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(b);N_GUARD::S(D)
- Tries
- Try
- K(E);S_FLIGHT
- Threat
- R(A)+P(C),XP(b)
- Vars
- K(a);P-FLIGHT::R(A)+P(C)DCHECK,XP(b)
- P(b);OGATE,P_SPINP(b),XP(C)::R1(A),XP(b)
- Refutation
- P(b);
- Try
- K(E);P-FLIGHT
- Vars
- P(b);N_GUARD::S(D)
- Refutation
- P(b);P_SPINP(b),XP(C)
- Try
- S(D);
- Vars
- P(b);OGATE::P(B),XP(b)
- Refutation
- P(b);P_SPINP(b),XP(C)
- Try
- R(A);
- Vars
- P(b);N_GUARD::S(D)
- Refutation
- P(b);P_SPINP(b),XP(C)
- Try
- Actual
- R(A);
- Threat
- R1(A),XP(b)
- Vars
- P(b);N_GUARD,SBLOCK,XP(C)::S(D)
- P(b);OGATE::P(B),XP(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).