MESON Chess Problem Database
Problem Display
PID: 94626 (6r1/5N1k/6RP/8/5K2/7Q/8/8 w - - 0 1)
Shakhnazaryan, Albert Serapionovic
Vecherni Magadan, 1997
#2
5 + 2
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxg6
- 2.Qf5#
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Rg7#
- 1...Kxg6
- Tries
- 1.Kf5?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Sg5#
- 2.Rg7#
- 1...Rxg6!
- 1...Rg7
- 1.Kg5?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Rg7#
- 1...Rxg6+!
- 1...Rg7
- 1.Qg2?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Rg7#
- 1...Rxg6!
- 1...Rg7
- 1.Qg4?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Rg7#
- 1...Rxg6!
- 1...Rg7
- 1.Qf5?
- threat
- 2.Rg7#
- 1...Rg7
- 2.Rxg7#
- 1...Rxg6!
- threat
- 1.Qe6?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Sg5#
- 2.Rg7#
- 1...Rxg6!
- 1...Rg7
- 1.Qd7?
- 1...Kxg6
- 2.Qf5#
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Se5#
- 2.Rg7#
- 1...Rxg6!
- 1...Kxg6
- 1.Qc3?
- 1...Rxg6
- 2.Qh8#
- 1...Rg7
- 2.Rxg7#
- 2.Qxg7#
- 1...Ra8
- 2.Rg7#
- 2.Qg7#
- 1...Rb8
- 2.Rg7#
- 2.Qg7#
- 1...Rc8
- 2.Rg7#
- 2.Qg7#
- 1...Rd8
- 2.Rg7#
- 2.Qg7#
- 1...Re8
- 2.Rg7#
- 2.Qg7#
- 1...Rf8
- 2.Rg7#
- 2.Qg7#
- 1...Rh8
- 2.Rg7#
- 2.Qg7#
- 1...Kxg6!
- 1...Rxg6
- 1.Qd3?
- threat
- 2.Rg7#
- 1...Rg7
- 2.Rxg7#
- 1...Rxg6!
- threat
- 1.Qg3?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Rg7#
- 1...Rxg6!
- 1...Rg7
- 1.Qh5?
- 1...Rg7
- 2.Rxg7#
- 1...Ra8
- 2.Rg7#
- 1...Rb8
- 2.Rg7#
- 1...Rc8
- 2.Rg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Sg5#
- 2.Rg7#
- 1...Rxg6!
- 1...Rg7
- 1.Kf5?
- Keys
- 1.Qc8!
- threat
- 2.Qxg8#
- 1...Kxg6
- 2.Qf5#
- 1...Rxg6
- 2.Qh8#
- 1...Rxc8
- 2.Rg7#
- 1...Rg7
- 2.Rxg7#
- 1...Rd8
- 2.Rg7#
- 1...Re8
- 2.Rg7#
- 1...Rf8
- 2.Rg7#
- 1...Rh8
- 2.Rg7#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- K(a);OGATEB,S_FLIGHT,XR(C)::QAB1(A)
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- K(B);P_SPINR(C),S_FLIGHT
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,N_PINR(C),SBLOCK::R1(C)
- R(b);N_GUARD,N_PINR(C)::R1(C)
- Refutation
- R(b);CHECK,XR(C)
- Try
- Q(A);
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- Q(A);
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- Q(A);
- Threat
- QAB(A)+R(C),DCHECK
- Vars
- R(b);::QAB(A)+R(C),DCHECK,XR(b)
- Refutation
- R(b);P_SPINR(b),XR(C)
- Try
- Q(A);
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- Q(A);
- Vars
- K(a);OGATEB,S_FLIGHT,XR(C)::QAB1(A)
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- Q(A);
- Vars
- R(b);N_GUARD,SBLOCK,XR(C)::QAR1(A)
- Refutation
- K(a);S_FLIGHT,XR(C)
- Try
- Q(A);
- Threat
- QAB(A)+R(C),DCHECK
- Vars
- R(b);::QAB(A)+R(C),DCHECK,XR(b)
- Refutation
- R(b);P_SPINR(b),XR(C)
- Try
- Q(A);
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- Q(A);
- Vars
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD,SBLOCK::R1(C)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
- Refutation
- R(b);XR(C)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A),XR(b)
- Vars
- K(a);OGATEB,S_FLIGHT,XR(C)::QAB1(A)
- R(b);OGATE,SBLOCK,XR(C)::QAR1(A)
- R(b);N_GUARD,XQ(A)::R1(C)
- R(b);N_GUARD::R1(C),XR(b)
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD,P_PINS(E)::R1(C)
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).