MESON Chess Problem Database
Problem Display
PID: 42848 (4k1BK/1N1pn1P1/3Pn3/8/4Q3/5N2/8/8 w - - 0 1)
Majoros, Bela
Pedagogusok Lapja, 1979
#2
7 + 4
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sxg7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sg6+
- 2.Qxg6#
- 1...Sc8
- 2.Qg6#
- 1...Sxg8
- 2.Qg6#
- 1...Sd4
- Tries
- 1.Se1?
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sd4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- 1...Sg6+
- 1.Sg1?
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sd4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- 1...Sg6+
- 1.Sd2?
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sd4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- 1...Sg6+
- 1.Sh2?
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sd4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- 1...Sg6+
- 1.Sd4?
- 1...Sg6+
- 2.Qxg6#
- 1...Sxd4
- 2.Qxe7#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- 1...Sg6+
- 1.Sh4?
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sd4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sc5
- 2.Qxe7#
- 1...Sg5
- 2.Qxe7#
- 1...Sc7
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Qg6#
- 1...Sc6
- 2.Qg6#
- 1...Sc8
- 2.Qg6#
- 1...Sf5!
- 1...Sg6+
- 1.Bxe6?
- 1...Sg6+
- 2.Qxg6#
- 1...Sf5
- 2.g8Q#
- 2.g8R#
- 1...Sd5
- 2.Bxd5#
- 2.Qg6#
- 2.g8Q#
- 2.g8R#
- 1...Sc6
- 2.Qg6#
- 2.g8Q#
- 2.g8R#
- 1...Sc8
- 2.Qg6#
- 2.g8Q#
- 2.g8R#
- 1...Sg8
- 2.Bxg8#
- 2.Qg6#
- 1...dxe6!
- 1...Sg6+
- 1.Bh7?
- 1...Sg6+
- 2.Bxg6#
- 2.Qxg6#
- 1...Sxg7
- 2.Qxe7#
- 1...Sf5
- 2.Bg6#
- 2.g8Q#
- 1...Sd4
- 2.Bg6#
- 2.Qxe7#
- 2.g8Q#
- 1...Sf4
- 2.Qxe7#
- 2.g8Q#
- 1...Sc5
- 2.Bg6#
- 2.Qxe7#
- 2.g8Q#
- 1...Sg5
- 2.Qxe7#
- 2.g8Q#
- 1...Sc7
- 2.Bg6#
- 2.Qxe7#
- 2.g8Q#
- 1...Sd8
- 2.Qxe7#
- 2.g8Q#
- 1...Sf8
- 2.Qxe7#
- 1...Sd5
- 2.Bg6#
- 2.Qg6#
- 2.g8Q#
- 1...Sc6
- 2.Bg6#
- 2.Qg6#
- 2.g8Q#
- 1...Sc8
- 2.Bg6#
- 2.Qg6#
- 2.g8Q#
- 1...Sg8
- 2.Bg6#
- 2.Qg6#
- 1...Kf7!
- 1...Sg6+
- 1.Qf5?
- threat
- 2.Bf7#
- 2.Qf7#
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg7
- 2.Qf7#
- 1...Sxg8
- 2.Qg6#
- 2.Qh5#
- 1...Sg5
- 2.Qf8#
- 1...Sd8
- 2.Qf8#
- 1...Sxf5!
- threat
- 1.Se1?
- Keys
- 1.Sg5!
- threat
- 2.Bf7#
- 1...Sg6+
- 2.Qxg6#
- 1...Sxg5
- 2.Qxe7#
- 1...Sxg7
- 2.Qxe7#
- 1...Sxg8
- 2.Qg6#
- 1...Sd8
- 2.Qxe7#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- Tries
- Try
- S(A);
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- Refutation
- S(c);P_SPINS(a)
- Try
- S(A);
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- Refutation
- S(c);P_SPINS(a)
- Try
- S(A);
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- Refutation
- S(c);P_SPINS(a)
- Try
- S(A);
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- Refutation
- S(c);P_SPINS(a)
- Try
- S(A);
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XS(A)::QAR1(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- Refutation
- S(c);P_SPINS(a)
- Try
- S(A);
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a)::QAB(B)
- Refutation
- S(c);P_SPINS(a)
- Try
- B(F);XS(a)
- Vars
- S(c);CHECK,N_GUARD::QAB(B),XS(c)
- S(c);N_GUARD::P=Q
- Refutation
- P(b);XB(F)
- Try
- B(F);
- Vars
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,N_GUARD::QAB(B),XS(c)
- S(a);XP(E)::QAB1(B)
- S(a);N_GUARD::QAR1(B)
- Refutation
- S(c);XQ(B)
- Try
- Actual
- S(A);
- Threat
- B(F)
- Vars
- S(c);CHECK,N_GUARD,P_SPINS(a)::QAB(B),XS(c)
- S(a);OGATE,P_SPINS(c),XS(A)::QAR1(B),XS(c)
- S(a);OGATE,P_SPINS(c),XP(E)::QAR1(B),XS(c)
- S(c);N_GUARD,P_SPINS(a),XB(F)::QAB(B)
- S(a);OGATE,P_SPINS(c)::QAR1(B),XS(c)
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).