MESON Chess Problem Database
Problem Display
PID: 264489 (8/8/7K/8/2Q3Pk/7p/6rB/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
The Problemist, 1992
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.g5#
- 1...Rb2
- 2.g5#
- 1...Ra2
- Tries
- 1.Qb5?
- threat
- 2.Qg5#
- 2.Qh5#
- 1...Kxg4
- 2.Qh5#
- 1...Rxg4
- 2.Qh5#
- 1...Rxh2!
- threat
- 1.Qd5?
- threat
- 2.Qg5#
- 2.Qh5#
- 1...Kxg4
- 2.Qe4#
- 2.Qh5#
- 1...Rxg4
- 2.Qh5#
- 1...Rxh2!
- threat
- 1.Qf7?
- threat
- 2.Qh5#
- 1...Kxg4
- 2.Qh5#
- 2.Qf4#
- 1...Rxh2!
- threat
- 1.Qc5?
- threat
- 2.Qg5#
- 2.Qh5#
- 1...Kxg4
- 2.Qh5#
- 1...Rxg4
- 2.Qh5#
- 1...Rxh2!
- threat
- 1.Qb5?
- Keys
- 1.Qf4!
- threat
- 2.Qg5#
- 1...Rxh2
- 2.g5#
- 1...Rxg4
- 2.Bg3#
- threat
- 1.Qf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::QAR(B)+P(C)
- Tries
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT,XP(C)::QAB1(B)
- R(a);XP(C)::QAR1(B)
- Refutation
- R(a);XB(A)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(a);XP(C)::QAR1(B)
- Refutation
- R(a);XB(A)
- Try
- Q(B);
- Threat
- QAR1(B)
- Refutation
- R(a);XB(A)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT,XP(C)::QAB1(B)
- R(a);XP(C)::QAR1(B)
- Refutation
- R(a);XB(A)
- Try
- Actual
- Q(B);
- Threat
- QAB1(B)
- Vars
- R(a);N_GUARD,XB(A)::QAR(B)+P(C)
- R(a);N_GUARD,P_SPINR(a),XP(C)::B(A)
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).