MESON Chess Problem Database
Problem Display
PID: 232333 (6q1/5PR1/8/8/8/1Q2R3/4K3/k7 w - - 0 1)
Speckmann, Werner
Deutsche Schachzeitung, 1972
#2
5 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa8
- 2.Rg1#
- 1...Qb8
- 2.Rg1#
- 1...Qe8
- 2.Rg1#
- 1...Qf8
- 2.Rg1#
- 1...Qh8
- 2.Rg1#
- 1...Qa8
- Tries
- 1.Re5?
- threat
- 2.Ra5#
- 1...Qa8
- 2.Rg1#
- 1...Qe8
- 2.Rg1#
- 1...Qf8
- 2.Rg1#
- 1...Qd8!
- threat
- 1.Rg4?
- threat
- 2.Ra4#
- 1...Qa8
- 2.Rg1#
- 1...Qe8
- 2.Rg1#
- 1...Qf8
- 2.Rg1#
- 1...Qxg4+!
- threat
- 1.Qc2?
- threat
- 2.Ra3#
- 1...Qa8
- 2.Rg1#
- 1...Qe8
- 2.Rg1#
- 1...Qf8
- 2.Rg1#
- 1...Qxf7!
- threat
- 1.Re5?
- Keys
- 1.Re4!
- threat
- 2.Ra4#
- 1...Qa8
- 2.Rg1#
- 1...Qe8
- 2.Rg1#
- 1...Qf8
- 2.Rg1#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(b);N_GUARD::R(E)
- Q(b);N_GUARD,P_PINR(C)::R(E)
- Tries
- Try
- R(C);
- Threat
- R(C)
- Vars
- Q(b);N_GUARD::R(E)
- Q(b);N_GUARD,P_PINR(C)::R(E)
- Refutation
- Q(b);
- Try
- R(E);
- Threat
- R(E)
- Vars
- Q(b);N_GUARD::R(E)
- Q(b);N_GUARD,P_PINR(C)::R(E)
- Refutation
- Q(b);CHECK,XR(E)
- Try
- Q(B);
- Threat
- R(C)
- Vars
- Q(b);N_GUARD::R(E)
- Q(b);N_GUARD,P_PINR(C)::R(E)
- Refutation
- Q(b);XP(D)
- Try
- Actual
- R(C);
- Threat
- R(C)
- Vars
- Q(b);N_GUARD::R(E)
- Q(b);N_GUARD,P_PINR(C)::R(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).