MESON Chess Problem Database
Problem Display
PID: 92212 (1B6/4p2R/5pp1/7r/2B2pQ1/3P4/2K1P1P1/k7 w - - 0 1)
Giebel, Gerd
Schach Ecke, 1966
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rxh1#
- 1...Ra5
- 2.Rh1#
- 1...Rc5
- 2.Rh1#
- 1...Rd5
- 2.Rh1#
- 1...Re5
- 2.Rh1#
- 1...Rf5
- 2.Rh1#
- 1...Rg5
- 2.Rh1#
- 1...f3
- 2.Qd4#
- 1...f5
- 2.Be5#
- 1...e5
- 2.Ra7#
- 1...Rh1
- Tries
- 1.Be5+?
- 1...Rxe5
- 2.Rh1#
- 1...fxe5!
- 1...Rxe5
- 1.Rxh5?
- threat
- 2.Rh1#
- 2.Ra5#
- 1...f5
- 2.Be5#
- 2.Rh1#
- 1...g5
- 2.Rh1#
- 1...e5
- 2.Rh1#
- 1...gxh5!
- threat
- 1.Qf3?
- threat
- 2.Qf1#
- 1...Rh1
- 2.Rxh1#
- 2.Qa8#
- 1...Rb5!
- threat
- 1.Qxh5?
- threat
- 2.Qh1#
- 2.Qa5#
- 1...f5
- 2.Be5#
- 2.Qh1#
- 1...g5
- 2.Qh1#
- 1...e5
- 2.Ra7#
- 2.Qh1#
- 1...gxh5!
- threat
- 1.Qd7?
- threat
- 2.Qa4#
- 2.Qd4#
- 1...Ra5
- 2.Rh1#
- 2.Qd4#
- 1...Rd5
- 2.Rh1#
- 2.Qa4#
- 1...e5
- 2.Qa4#
- 2.Qa7#
- 1...Rb5!
- threat
- 1.Qxf4?
- threat
- 2.Qc1#
- 2.Qf1#
- 2.Qd4#
- 1...Rh1
- 2.Rxh1#
- 2.Qd4#
- 1...Rh4
- 2.Qc1#
- 2.Qf1#
- 1...Rd5
- 2.Rh1#
- 2.Qc1#
- 2.Qf1#
- 1...Rf5
- 2.Rh1#
- 2.Qc1#
- 2.Qd4#
- 1...e5
- 2.Ra7#
- 2.Qc1#
- 2.Qf1#
- 1...Rb5!
- threat
- 1.e3?
- threat
- 2.Qd1#
- 1...Rh1
- 2.Rxh1#
- 1...f3
- 2.Qd4#
- 1...Rb5!
- threat
- 1.Be5+?
- Keys
- 1.Qg5!
- 1...Rxg5
- 2.Rh1#
- 1...Rxh7
- 2.Qa5#
- 1...fxg5
- 2.Be5#
- 1...Rh1
- 2.Rxh1#
- 2.Qa5#
- 1...Rh2
- 2.Qa5#
- 1...Rh3
- 2.Qa5#
- 1...Rh4
- 2.Qa5#
- 1...Rh6
- 2.Qa5#
- 1...f3
- 2.Qc1#
- 1...f5
- 2.Be5#
- 1...e5
- 2.Ra7#
- 1...e6
- 2.Ra7#
- 1...Rxg5
- 1.Qg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 6
- Sets
- R(c);OGATE::R(G),XR(c)
- R(c);OGATE::R(G)
- R(c);OGATE,P_PINB(E)::R(G)
- P(b);OGATE::QAB(F)
- P(d);N_GUARD,S_CUTR(c)::B(H)
- P(f);OGATE::R(G)
- Tries
- Try
- B(H);CHECK
- Vars
- R(c);OGATE,XB(H)::R(G)
- Refutation
- P(d);XB(H)
- Try
- R(G);XR(c)
- Threat
- DUALS(2)
- Vars
- P(e);::R(G)
- P(f);::R(G)
- Refutation
- P(e);XR(G)
- Try
- Q(F);
- Threat
- QAR(F)
- Refutation
- R(c);
- Try
- Q(F);XR(c)
- Threat
- DUALS(2)
- Vars
- P(e);::QAB1(F)
- Refutation
- P(e);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Refutation
- R(c);
- Try
- Q(F);XP(b)
- Threat
- DUALS(3)
- Refutation
- R(c);
- Try
- P(B);
- Threat
- QAR(F)
- Vars
- R(c);OGATE::R(G),XR(c)
- P(b);OGATE::QAB(F)
- Refutation
- R(c);
- Try
- Actual
- Q(F);
- Vars
- R(c);OGATE,XQ(F)::R(G)
- R(c);N_GUARD,XR(G)::QAR(F)
- P(d);N_GUARD,XQ(F)::B(H)
- R(c);N_GUARD::QAR(F)
- P(b);OGATE::QAR2(F)
- P(d);N_GUARD::B(H)
- P(f);OGATE::R(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).