MESON Chess Problem Database
Problem Display
PID: 92284 (8/6p1/2P1P1P1/2rpP3/P2P1k2/Q2P1P1B/6R1/K4RB1 w - - 0 1)
Kraemer, E
1st Prize, Schach-Echo, 1959
#2
14 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qc1#
- 2.Qf8#
- 1...Rb5
- 2.Qc1#
- 2.Qf8#
- 1...Rxc6
- 2.Qf8#
- 1...Rc1+
- Tries
- 1.Kb1?
- 1...Rc1+
- 2.Qxc1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qc1#
- 2.Qf8#
- 1...Rb5+!
- 1...Rc1+
- 1.Ka2?
- 1...Rxc6
- 2.Qf8#
- 1...Rc1
- 2.Qxc1#
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qc1#
- 2.Qf8#
- 1...Rb5
- 2.Qc1#
- 2.Qf8#
- 1...Rc2+!
- 1...Rxc6
- 1.Bf2?
- 1...Kxf3
- 2.Bg1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rc1+!
- 1...Kxf3
- 1.Rc1?
- 1...Kxf3
- 2.Rf1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rxc1+!
- 1...Kxf3
- 1.Rd1?
- 1...Kxf3
- 2.Rf1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rc1+!
- 1...Kxf3
- 1.Re1?
- 1...Kxf3
- 2.Rf1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rc1+!
- 1...Kxf3
- 1.Qb2?
- threat
- 2.Qd2#
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2!
- threat
- 1.Qb4?
- threat
- 2.Qd2#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc1+!
- threat
- 1.a5?
- 1...Rc1+
- 2.Qxc1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qc1#
- 2.Qf8#
- 1...Rxa5!
- 1...Rc1+
- 1.c7?
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qc1#
- 2.Qf8#
- 1...Rb5
- 2.Qc1#
- 2.Qf8#
- 1...Rc6
- 2.Qf8#
- 1...Rxc7!
- 1...Rc1+
- 1.Kb1?
- Keys
- 1.Rb1!
- 1...Kxf3
- 2.Rf1#
- 1...Rxc6
- 2.Qf8#
- 1...Rc1
- 2.Qf8#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Kxf3
- 1.Rb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);CHECK,N_GUARD::QAB(E),XR(b)
- R(b);OGATE::QAR(E)
- R(b);OGATE,XP(L)::QAR(E)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(b);CHECK,N_GUARD::QAB(E),XR(b)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK
- Try
- B(C);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(G)::R(B)+B(C)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(G)::R(B)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK,XR(B)
- Try
- R(B);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(G)::R(B)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(G)::R(B)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(b);CHECK,N_GUARD::QAB(E),XR(b)
- Refutation
- R(b);
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(b);OGATE::QAR(E)
- Refutation
- R(b);CHECK
- Try
- P(I);
- Vars
- R(b);CHECK,N_GUARD::QAB(E),XR(b)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);P_PINQ(E),XP(I)
- Try
- P(L);
- Vars
- R(b);CHECK,N_GUARD::QAB(E),XR(b)
- R(b);OGATE::QAR(E)
- Refutation
- R(b);XP(L)
- Try
- Actual
- R(B);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(G)::R(B)
- R(b);OGATE,XP(L)::QAR(E)
- R(b);OGATE,P_PINR(B)::QAR(E)
- R(b);OGATE::QAR(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).