MESON Chess Problem Database
Problem Display
PID: 6199 (8/8/2p3p1/2r1p1R1/P2pNk2/Q2B1P2/8/K4RB1 w - - 0 1)
Kraemer, Wilhelm
Westphalia Solving Ty., 1927
#2
9 + 6
| 3242 | BCPS Rapid Solving (Cheltenham) | 2001 |
| 5454 | Near Snap | 2018 |
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...Rd5
- 2.Qc1#
- 2.Qf8#
- 1...Rc1+
- Tries
- 1.Kb1?
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qc1#
- 2.Qf8#
- 1...Rd5
- 2.Qc1#
- 2.Qf8#
- 1...Rb5+!
- 1...Rc1+
- 1.Ka2?
- 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...Rd5
- 2.Qc1#
- 2.Qf8#
- 1...Rc2+!
- 1...Rc1
- 1.Sxc5?
- threat
- 2.Se6#
- 2.Rg4#
- 2.Qc1#
- 1...e4
- 2.Se6#
- 1...Kxg5!
- threat
- 1.Bf2?
- 1...Kxf3
- 2.Bg1#
- 2.Bxd4#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rd5
- 2.Qf8#
- 1...Rc1+!
- 1...Kxf3
- 1.Bxd4?
- 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...Rd5
- 2.Qc1#
- 2.Qf8#
- 1...exd4!
- 1...Rc1+
- 1.Bb1?
- threat
- 2.Bh2#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...d3!
- threat
- 1.Bc2?
- threat
- 2.Bh2#
- 2.Qc1#
- 1...Rxc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...d3!
- threat
- 1.Be2?
- threat
- 2.Bh2#
- 1...Rc1+
- 2.Qxc1#
- 1...Rc3
- 2.Qf8#
- 1...d3!
- threat
- 1.Bc4?
- threat
- 2.Bh2#
- 2.Qc1#
- 1...Rxc4
- 2.Bh2#
- 2.Qf8#
- 1...d3!
- threat
- 1.Bb5?
- threat
- 2.Bh2#
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...d3!
- threat
- 1.Ba6?
- threat
- 2.Bh2#
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...d3!
- threat
- 1.Rc1?
- 1...Kxf3
- 2.Rf1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rd5
- 2.Qf8#
- 1...Rxc1+!
- 1...Kxf3
- 1.Rd1?
- 1...Kxf3
- 2.Rf1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rd5
- 2.Qf8#
- 1...Rc1+!
- 1...Kxf3
- 1.Re1?
- 1...Kxf3
- 2.Rf1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Ra5
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rd5
- 2.Qf8#
- 1...Rc1+!
- 1...Kxf3
- 1.Rxg6?
- threat
- 2.Rf6#
- 1...Kf5
- 2.Rf6#
- 1...Rc1+!
- threat
- 1.Qb2?
- threat
- 2.Qd2#
- 2.Qh2#
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2!
- threat
- 1.Qb4?
- threat
- 2.Qd2#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc1+!
- threat
- 1.Qa2?
- threat
- 2.Qf7#
- 2.Qd2#
- 2.Qh2#
- 1...Rc2
- 2.Qf7#
- 1...Rc4
- 2.Qd2#
- 2.Qh2#
- 1...Rd5
- 2.Qd2#
- 2.Qh2#
- 1...Rc1+!
- threat
- 1.a5?
- 1...Rc1+
- 2.Qxc1#
- 1...Rc2
- 2.Qf8#
- 1...Rc3
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qc1#
- 2.Qf8#
- 1...Rd5
- 2.Qc1#
- 2.Qf8#
- 1...Rxa5!
- 1...Rc1+
- 1.Kb1?
- Keys
- 1.Rb1!
- 1...Kxf3
- 2.Rf1#
- 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...Rd5
- 2.Qf8#
- 1...Kxf3
- 1.Rb1!
This anticipates 176523(1972)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- S(H);XR(c)
- Threat
- DUALS(3)
- Vars
- P(d);::S(H)
- Refutation
- K(b);S_FLIGHT,XR(I)
- Try
- B(C);
- Vars
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- B(C);XP(a)
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Refutation
- P(d);XB(C)
- Try
- B(E);
- Threat
- B(C)
- Vars
- R(c);OGATE::QAR(D)
- Refutation
- P(a);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,XB(E)::QAR(D)
- R(c);OGATE::QAR(D)
- Refutation
- P(a);
- Try
- B(E);
- Threat
- B(C)
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Refutation
- P(a);
- Try
- B(E);
- Threat
- DUALS(2)
- Refutation
- P(a);
- Try
- B(E);
- Threat
- B(C)
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Refutation
- P(a);
- Try
- B(E);
- Threat
- B(C)
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(F)::R(B)
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK,XR(B)
- Try
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(F)::R(B)
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(F)::R(B)
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- R(I);XP(f)
- Threat
- R(I)
- Vars
- K(b);P-FLIGHT::R1(I)
- Refutation
- R(c);CHECK
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- Refutation
- R(c);
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- R(c);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- R(c);::QAR(D)
- Refutation
- R(c);CHECK
- Try
- P(G);
- Vars
- R(c);CHECK,N_GUARD::QAB(D),XR(c)
- R(c);OGATE::QAR(D)
- Refutation
- R(c);P_PINQ(D),XP(G)
- Try
- Actual
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(F)::R(B)
- R(c);OGATE,P_PINR(B)::QAR(D)
- R(c);OGATE::QAR(D)
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).