MESON Chess Problem Database
Problem Display
PID: 255803 (1kN5/R1nQ4/4n3/K7/8/8/8/8 w - - 0 1)
Fokin, Mikhail
Zhuravlev, Andrey Nikolaevich
4th Comm., Mansfield-125 MT (Miniatures) (Kudesnik), 2021
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Rb7#
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Sd4
- Tries
- 1.Ka4?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Rb7#
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Sc5+!
- 1...Sd4
- 1.Sb6?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Rb7#
- 2.Ra8#
- 2.Qb7#
- 1...Sd5
- 2.Rb7#
- 2.Ra8#
- 2.Qb7#
- 1...Sa6
- 2.Rb7#
- 2.Ra8#
- 2.Qb7#
- 1...Sa8
- 2.Rb7#
- 2.Rxa8#
- 2.Qb7#
- 1...Se8
- 2.Rb7#
- 2.Ra8#
- 2.Qb7#
- 1...Kxa7!
- 1...Sd4
- 1.Sd6?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Rb7#
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Kxa7!
- 1...Sd4
- 1.Se7?
- threat
- 2.Sc6#
- 1...Sd4
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Kxa7!
- threat
- 1.Qd6?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Kxc8!
- 1...Sd4
- 1.Qe7?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Kxc8!
- 1...Sd4
- 1.Qf7?
- 1...Sd4
- 2.Qxc7#
- 1...Sf4
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sg7
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- 1...Sf8
- 2.Qxc7#
- 1...Sb5
- 2.Qb7#
- 1...Sd5
- 2.Qb7#
- 1...Sa6
- 2.Qb7#
- 1...Sa8
- 2.Qb7#
- 1...Se8
- 2.Qb7#
- 1...Kxc8!
- 1...Sd4
- 1.Ka4?
- Keys
- 1.Qc6!
- threat
- 2.Qb7#
- 1...Kxc8
- 2.Ra8#
- 1...Sc5
- 2.Qxc7#
- 1...Sd8
- 2.Qxc7#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);OGATE::QAR1(C)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);OGATE::QAR1(C)
- Refutation
- S(a);CHECK
- Try
- S(D);
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- K(c);P_SPINS(b),S_FLIGHT,XR(B)
- Try
- S(D);
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);OGATE::QAR1(C)
- Refutation
- K(c);P_SPINS(b),S_FLIGHT,XR(B)
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- K(c);P_SPINS(b),S_FLIGHT,XR(B)
- Try
- Q(C);P_PINS(b)
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- K(c);N_SPINS(b),P-FLIGHT,XS(D)
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);OGATE::QAR1(C)
- Refutation
- K(c);P-FLIGHT,XS(D)
- Try
- Q(C);
- Vars
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);OGATE::QAR1(C)
- Refutation
- K(c);P-FLIGHT,XS(D)
- Try
- Actual
- Q(C);
- Threat
- QAR1(C)
- Vars
- K(c);P-FLIGHT,P_SPINS(b),XS(D)::R(B)
- S(a);N_GUARD::QAB1(C),XS(b)
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).