MESON Chess Problem Database
Problem Display
PID: 166793 (2Q5/1KN5/p7/pR6/kB6/1p6/8/8 w - - 0 1)
Skripnik, Anatoly Nikolaevich
2nd Prize, ASIGC, 2011-2012
#2
5 + 4
| 23 | Die Schwalbe | 2017 |
SOLUTION
- SOUND
- Tries
- 1.Kxa6?
- 1...axb4
- 2.Ra5#
- 1...b2!
- 1...axb4
- 1.Rb6?
- threat
- 2.Qd7#
- 2.Qe8#
- 1...axb4
- 2.Rxa6#
- 1...b2!
- threat
- 1.Qg4?
- threat
- 2.Bc5#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 2.Rxa5#
- 1...axb4
- 2.Qxb4#
- 1...b2
- 2.Bc5#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 2.Qd1#
- 1...axb5!
- threat
- 1.Qe6?
- 1...axb4
- 2.Qxa6#
- 1...b2
- 2.Qa2#
- 1...axb5!
- 1...axb4
- 1.Qd7?
- threat
- 2.Rb6#
- 1...axb5
- 2.Qxb5#
- 1...b2
- 2.Qd1#
- 1...axb4!
- threat
- 1.Qa8?
- 1...axb4
- 2.Qxa6#
- 1...axb5
- 2.Qxa5#
- 1...b2!
- 1...axb4
- 1.Kxa6?
- Keys
- 1.Qf5!
- 1...axb4
- 2.Ra5#
- 1...axb5
- 2.Qxb5#
- 1...b2
- 2.Qc2#
- 1...axb4
- 1.Qf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(C);S_FLIGHT,XP(d)
- Vars
- P(c);SBLOCK,XB(A)::R1(B)
- Refutation
- P(a);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB,SBLOCK,XB(A)::R(B),XP(d)
- Refutation
- P(a);
- Try
- Q(E);
- Threat
- DUALS(5)
- Vars
- P(c);OGATE,P_SPINP(c),XB(A)::QAR1(E),XP(c)
- Refutation
- P(d);XR(B)
- Try
- Q(E);
- Vars
- P(c);OGATEB,XB(A)::QAR2(E),XP(d)
- P(a);OGATE::QAR2(E)
- Refutation
- P(d);XR(B)
- Try
- Q(E);
- Threat
- QAB(E)+R(B)
- Vars
- P(d);OGATE,P_SPINP(d),XR(B)::QAB1(E),XP(d)
- P(a);OGATEB::QAB(E)
- Refutation
- P(c);XB(A)
- Try
- Q(E);
- Vars
- P(c);OGATEB,P_SPINP(d),XB(A)::QAR2(E),XP(d)
- P(d);OGATE,P_SPINP(c),XR(B)::QAR1(E),XP(c)
- Refutation
- P(a);
- Try
- Actual
- Q(E);
- Vars
- P(c);SBLOCK,XB(A)::R1(B)
- P(d);OGATE,XR(B)::QAB1(E),XP(d)
- P(a);OGATEB::QAB(E)
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).