MESON Chess Problem Database
Problem Display
PID: 87477 (5N2/7R/8/4r1k1/2pB2P1/2P1NK2/8/6Q1 w - - 0 1)
Cresswell, James E
The Problemist, 1976
#2
8 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kf6
- 2.g5#
- 1...Rxe3+
- 2.Qxe3#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Rf5+
- 2.gxf5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Kf6
- Tries
- 1.Kg3?
- 1...Rxe3+
- 2.Qxe3#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Rf5
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Kf6!
- 1...Rxe3+
- 1.Sd5?
- threat
- 2.Rh5#
- 1...Re3+
- 2.Bxe3#
- 2.Qxe3#
- 1...Rf5+!
- threat
- 1.Rh1?
- 1...Rxe3+
- 2.Qxe3#
- 1...Rf5+
- 2.gxf5#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Kf6!
- 1...Rxe3+
- 1.Rh2?
- 1...Rxe3+
- 2.Qxe3#
- 1...Rf5+
- 2.gxf5#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Kf6!
- 1...Rxe3+
- 1.Rh3?
- 1...Rxe3+
- 2.Qxe3#
- 1...Rf5+
- 2.gxf5#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Kf6!
- 1...Rxe3+
- 1.Rg7+?
- 1...Kh4
- 2.Qh2#
- 2.Qh1#
- 2.Qg3#
- 1...Kh6
- 2.Rg6#
- 1...Kf6!
- 1...Kh4
- 1.Rh8?
- 1...Rxe3+
- 2.Qxe3#
- 1...Rf5+
- 2.gxf5#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Kf6!
- 1...Rxe3+
- 1.Qf2?
- threat
- 2.Qh4#
- 1...Rxe3+
- 2.Qxe3#
- 1...Kf6
- 2.Qh4#
- 1...Rf5+!
- threat
- 1.Qb1?
- threat
- 2.Qg6#
- 1...Rf5+
- 2.Qxf5#
- 1...Kf6
- 2.Qf5#
- 2.Qg6#
- 1...Re4
- 2.Rh5#
- 1...Re6
- 2.Sxe6#
- 2.Rh5#
- 2.Qf5#
- 1...Rxe3+!
- threat
- 1.Qe1?
- threat
- 2.Qh4#
- 1...Rxe3+
- 2.Qxe3#
- 1...Kf6
- 2.Qh4#
- 1...Rf5+!
- threat
- 1.Qg2?
- 1...Rf5+
- 2.gxf5#
- 1...Kf6
- 2.g5#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Rh5#
- 1...Rb5
- 2.Rh5#
- 1...Rc5
- 2.Rh5#
- 1...Rd5
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Rxe3+!
- 1...Rf5+
- 1.Qg3?
- threat
- 2.Qf4#
- 2.Qh4#
- 2.Qxe5#
- 1...Rf5+
- 2.gxf5#
- 1...Kf6
- 2.Qf4#
- 2.Qh4#
- 2.Qxe5#
- 2.g5#
- 1...Re4
- 2.Rh5#
- 2.Qh4#
- 1...Ra5
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Rb5
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Rc5
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Rd5
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Re6
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Re7
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Re8
- 2.Rh5#
- 2.Qf4#
- 2.Qh4#
- 1...Rxe3+!
- threat
- 1.Kg3?
- Keys
- 1.Qc1!
- 1...Rxe3+
- 2.Qxe3#
- 1...Rf5+
- 2.Sxf5#
- 1...Kf6
- 2.Sd5#
- 1...Re4
- 2.Rh5#
- 1...Ra5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sxc4#
- 2.Sd5#
- 2.Sf5#
- 2.Rh5#
- 1...Rb5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sxc4#
- 2.Sd5#
- 2.Sf5#
- 2.Rh5#
- 1...Rc5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sxc4#
- 2.Sd5#
- 2.Sf5#
- 2.Rh5#
- 1...Rd5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sxc4#
- 2.Sxd5#
- 2.Sf5#
- 2.Rh5#
- 1...Re6
- 2.Rh5#
- 1...Re7
- 2.Rh5#
- 1...Re8
- 2.Rh5#
- 1...Rxe3+
- 1.Qc1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- K(c);OGATE,P_SPINR(b),S_FLIGHT::P(F)
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- R(b);::R1(G)
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- R(b);::R1(G)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- S(C);
- Threat
- R1(G)
- Refutation
- R(b);CHECK
- Try
- R(G);
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- R(b);::R1(G)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(G);
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- R(b);::R1(G)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(G);
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- R(b);::R1(G)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(G);CHECK
- Vars
- K(c);S_FLIGHT::R1(G)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- R(G);
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- R(b);::R1(G)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- K(c);P_SPINR(b),S_FLIGHT::QAB(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(b);CHECK,N_GUARD::QAR1(A),XR(b)
- R(b);::R1(G)
- Refutation
- R(b);CHECK,XS(C)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(b);CHECK,OGATE,XS(C)::QAB(A),XR(b)
- K(c);P_SPINR(b),S_FLIGHT::QAB(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Vars
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- K(c);OGATE,P_SPINR(b),S_FLIGHT::P(F)
- R(b);::R1(G)
- Refutation
- R(b);CHECK,XS(C)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(b);CHECK,OGATE::QAR(A)+P(F),XR(b)
- Refutation
- R(b);CHECK,XS(C)
- Try
- Actual
- Q(A);
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XS(C)::QAB(A),XR(b)
- R(b);CHECK,N_GUARD::QAB(A)+S(C),XR(b)
- K(c);P_SPINR(b),S_FLIGHT::S(C)
- R(b);::R1(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).