MESON Chess Problem Database
Problem Display
PID: 145420 (1K3R2/1p5Q/3Np2P/8/2R1P3/2Ppk1rp/3p3b/n2B3n w - - 0 1)
Witt, Andreas
3rd Prize, Sachsische Zeitung, 2007
#2
9 + 10
| 23 | Die Schwalbe | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rg6
- 2.Rf3#
- 1...Rg7
- 2.Rf3#
- 1...b5
- 2.Qa7#
- 1...Rg1
- Tries
- 1.Ra4?
- threat
- 2.Sc4#
- 1...Rf3
- 2.Rxf3#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rg6
- 2.Rf3#
- 1...Rg7
- 2.Rf3#
- 1...b5
- 2.Qa7#
- 1...Rg8!
- threat
- 1.Rb4?
- threat
- 2.Sc4#
- 1...Rf3
- 2.Rxf3#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rg6
- 2.Rf3#
- 1...Rg7
- 2.Rf3#
- 1...b5
- 2.Qa7#
- 1...Rg8!
- threat
- 1.Rc6?
- threat
- 2.Sc4#
- 1...Rf3
- 2.Rxf3#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rg6
- 2.Rf3#
- 1...Rg7
- 2.Rf3#
- 1...b5
- 2.Qa7#
- 1...Rg8!
- threat
- 1.Rc7?
- threat
- 2.Sc4#
- 1...Rf3
- 2.Rxf3#
- 1...Rg6
- 2.Rf3#
- 1...b5!
- threat
- 1.Qf7?
- threat
- 2.Qf4#
- 1...Rf3
- 2.Qxf3#
- 1...Rg1
- 2.Qf3#
- 1...Rg2
- 2.Qf3#
- 1...Rg4
- 2.Qf3#
- 1...Rg5
- 2.Qf3#
- 1...Rg6
- 2.Qf3#
- 1...Rg7
- 2.Qf3#
- 1...Rg8
- 2.Qf3#
- 1...e5!
- threat
- 1.e5?
- threat
- 2.Re4#
- 2.Qe4#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg6
- 2.Re4#
- 2.Rf3#
- 1...Sf2!
- threat
- 1.Ra4?
- Keys
- 1.Rcc8!
- threat
- 2.Sc4#
- 1...Rf3
- 2.Rxf3#
- 1...Rg8
- 2.Rf3#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rg6
- 2.Rf3#
- 1...Rg7
- 2.Rf3#
- 1...b5
- 2.Qa7#
- threat
- 1.Rcc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD,P_PINS(E)::R1(I)
- R(g);N_GUARD,P_PINS(E)::R1(I),XR(g)
- P(j);OGATE::QAB(G)
- Tries
- Try
- R(C);
- Threat
- S(E)
- Vars
- R(g);N_GUARD,P_PINS(E)::R1(I),XR(g)
- R(g);N_GUARD,P_PINS(E)::R1(I)
- P(j);OGATE::QAB(G)
- Refutation
- R(g);P_PINR(I),P_PINS(E)
- Try
- R(C);
- Threat
- S(E)
- Vars
- R(g);N_GUARD,P_PINS(E)::R1(I),XR(g)
- R(g);N_GUARD,P_PINS(E)::R1(I)
- P(j);OGATE::QAB(G)
- Refutation
- R(g);P_PINR(I),P_PINS(E)
- Try
- R(C);
- Threat
- S(E)
- Vars
- R(g);N_GUARD,P_PINS(E)::R1(I),XR(g)
- R(g);N_GUARD,P_PINS(E)::R1(I)
- P(j);OGATE::QAB(G)
- Refutation
- R(g);P_PINR(I),P_PINS(E)
- Try
- R(C);
- Threat
- S(E)
- Vars
- R(g);N_GUARD::R1(I),XR(g)
- R(g);N_GUARD::R1(I)
- Refutation
- P(j);
- Try
- Q(G);
- Threat
- QAB1(G)
- Vars
- R(g);N_GUARD,P_PINS(E)::QAR1(G),XR(g)
- R(g);N_GUARD,P_PINS(E)::QAR1(G)
- R(g);N_GUARD,P_PINR(I),P_PINS(E)::QAR1(G)
- Refutation
- P(i);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD::R1(I),XR(g)
- R(g);N_GUARD::R1(I)
- Refutation
- S(b);
- Try
- Actual
- R(C);
- Threat
- S(E)
- Vars
- R(g);N_GUARD,P_PINS(E)::R1(I),XR(g)
- R(g);N_GUARD,P_PINS(E)::R1(I)
- P(j);OGATE::QAB(G)
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).