MESON Chess Problem Database
Problem Display
PID: 145528 (8/8/4r3/1p6/nKNkPQN1/8/2P1r1p1/8 w - - 0 1)
Murarasu, Ion
diagrammes, 1974
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Qe3#
- 1...Rd2
- 2.Qe3#
- 1...Rf2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...R2xe4
- 2.Qd2#
- 1...R6xe4
- 2.Qd6#
- 1...Re5
- 2.Qxe5#
- 1...Ra6
- 2.Qe5#
- 1...Rb6
- 2.Qe5#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Qe5#
- 1...Rg6
- 2.Qe5#
- 1...Rh6
- 2.Qe5#
- 1...Rxc2
- Tries
- 1.Sd2?
- threat
- 2.Sb3#
- 2.Sf3#
- 1...Rxd2
- 2.Qe3#
- 1...R6xe4
- 2.Qd6#
- 1...g1S
- 2.Sb3#
- 1...Rf2
- 2.Sb3#
- 2.Qe3#
- 2.Qxf2#
- 1...Re3
- 2.Qxe3#
- 1...Sc5
- 2.Sf3#
- 1...R2xe4!
- threat
- 1.Sa3?
- threat
- 2.Sxb5#
- 1...Rxc2
- 2.Qe3#
- 1...R2xe4
- 2.Qd2#
- 1...R6xe4
- 2.Qd6#
- 1...Re5
- 2.Qxe5#
- 1...Rb6
- 2.Qe5#
- 1...Sc3!
- threat
- 1.Sce3?
- threat
- 2.Sf5#
- 2.e5#
- 1...Rxe3
- 2.Qxe3#
- 1...Rxe4
- 2.Qd6#
- 1...Rf2
- 2.Sf5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Qe5#
- 1...Sc3
- 2.Sf5#
- 1...Sc5
- 2.Sf5#
- 1...Rxc2!
- threat
- 1.Sa5?
- threat
- 2.Sb3#
- 1...Rxc2
- 2.Qe3#
- 1...R2xe4
- 2.Qd2#
- 1...R6xe4
- 2.Qd6#
- 1...Re3
- 2.Qxe3#
- 1...Sc5!
- threat
- 1.Sce5?
- threat
- 2.Sf3#
- 1...Rxc2
- 2.Qe3#
- 1...Rxe4
- 2.Qd2#
- 1...Rxe5
- 2.Qxe5#
- 1...Rf2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...g1S!
- threat
- 1.Sd6?
- threat
- 2.Sxb5#
- 2.Sf5#
- 1...Rxc2
- 2.Qe3#
- 1...R2xe4
- 2.Qd2#
- 1...Rxd6
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Sxb5#
- 2.Qe5#
- 2.Qxf6#
- 1...Sc3
- 2.Sf5#
- 1...R6xe4!
- threat
- 1.Sh2?
- threat
- 2.Sf3#
- 1...Rxc2
- 2.Qe3#
- 1...R2xe4
- 2.Qd2#
- 1...R6xe4
- 2.Qd6#
- 1...Rf2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...g1S!
- threat
- 1.Sge3?
- threat
- 2.Sf5#
- 2.e5#
- 1...Rxe3
- 2.Qxe3#
- 1...Rxe4
- 2.Qd6#
- 1...Rf2
- 2.Sf5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Qe5#
- 1...Sc3
- 2.Sf5#
- 1...Sc5
- 2.Sf5#
- 1...Rxc2!
- threat
- 1.Sge5?
- threat
- 2.Sf3#
- 1...Rxc2
- 2.Qe3#
- 1...Rxe4
- 2.Qd2#
- 1...Rxe5
- 2.Qxe5#
- 1...Rf2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...g1S!
- threat
- 1.Qf3?
- threat
- 2.Qd3#
- 1...Rxc2
- 2.Qe3#
- 1...Rd2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...Sb2
- 2.c3#
- 1...Sc5
- 2.c3#
- 1...bxc4!
- threat
- 1.e5+?
- 1...Re4
- 2.Qd2#
- 1...Kd5!
- 1...Re4
- 1.Sd2?
- Keys
- 1.Sh6!
- threat
- 2.Sf5#
- 1...Rxc2
- 2.Qe3#
- 1...R2xe4
- 2.Qd2#
- 1...R6xe4
- 2.Qd6#
- 1...Rxh6
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Qe5#
- threat
- 1.Sh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD::QAB1(E)
- R(a);N_GUARD::QAB1(E),XR(a)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD::QAB1(E)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XS(C)::QAB1(E)
- R(f);N_GUARD,P_SPINR(f),XP(D)::QAR2(E)
- P(b);::S(C)
- R(a);N_GUARD::QAB1(E),XR(a)
- S(c);::S(C)
- Refutation
- R(a);P_SPINR(a),XP(D)
- Try
- S(C);
- Threat
- S(C),XP(e)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD::QAB1(E)
- Refutation
- S(c);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XS(C)::QAB1(E),XR(a)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(a);::S(C)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD::QAB1(E)
- S(c);::S(C)
- Refutation
- R(a);XP(A)
- Try
- S(C);
- Threat
- S(C)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(a);N_GUARD::QAB1(E),XR(a)
- Refutation
- S(c);
- Try
- S(C);
- Threat
- S(C)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);OGATE,XS(C)::QAB1(E),XR(f)
- R(a);N_GUARD::QAB1(E)
- R(a);N_GUARD::QAB1(E),XR(a)
- Refutation
- P(b);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),XP(D)::QAR2(E)
- R(f);N_GUARD,XS(C)::QAB1(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- S(c);::S(C)
- Refutation
- R(f);P_SPINR(f),XP(D)
- Try
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(a);N_GUARD::QAB1(E)
- R(a);N_GUARD::QAB1(E),XR(a)
- Refutation
- P(b);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XS(F)::QAB1(E),XR(a)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(a);::S(F)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD::QAB1(E)
- S(c);::S(F)
- Refutation
- R(a);XP(A)
- Try
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);OGATE,XS(F)::QAB1(E),XR(f)
- R(a);N_GUARD::QAB1(E)
- R(a);N_GUARD::QAB1(E),XR(a)
- Refutation
- P(b);
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD::QAB1(E)
- R(a);N_GUARD::QAB1(E),XR(a)
- S(c);N_GUARD::P(A)
- Refutation
- P(e);XS(C)
- Try
- P(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),SBLOCK::QAR2(E)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,XP(A)::QAB1(E)
- R(a);N_GUARD,P_SPINR(a),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(D)::QAR2(E)
- R(f);N_GUARD,XS(F)::QAB1(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD::QAB1(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).