MESON Chess Problem Database
Problem Display
PID: 287518 (6B1/5Q2/N3n3/K1Bn2r1/2k5/R2p3b/8/8 w - - 0 1)
Gamza, Grigory Stepanovich
Mat, 1987
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Sf4
- 2.Qxf4#
- 1...Sc7
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Sd8
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sf4
- Tries
- 1.Qf2?
- threat
- 2.Qa2#
- 1...Sxc5
- 2.Qxc5#
- 1...Sc3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d2
- 2.Qe2#
- 1...Rg2!
- threat
- 1.Qd7?
- threat
- 2.Qb5#
- 1...Sc3
- 2.Qd4#
- 1...Se3
- 2.Qxd3#
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sdf4
- 2.Qd4#
- 1...Sb6
- 2.Qxd3#
- 2.Qd4#
- 1...Sf6
- 2.Qxd3#
- 2.Qd4#
- 1...Sdc7
- 2.Qxd3#
- 2.Qd4#
- 1...Se7
- 2.Qxd3#
- 2.Qd4#
- 1...Sd4
- 2.Qa4#
- 1...Sec7
- 2.Qa4#
- 1...Sxc5!
- threat
- 1.Qf2?
- Keys
- 1.Qb7!
- threat
- 2.Qb3#
- 2.Qb5#
- 1...Sxc5
- 2.Qb4#
- 1...Sc3
- 2.Qb3#
- 1...Se3
- 2.Qe4#
- 2.Qb3#
- 1...Sb4
- 2.Qe4#
- 1...Sdf4
- 2.Qe4#
- 2.Qb3#
- 1...Sb6
- 2.Qe4#
- 1...Sf6
- 2.Qb3#
- 1...Sdc7
- 2.Qe4#
- 2.Qb3#
- 1...Se7
- 2.Qe4#
- 2.Qb3#
- 1...Sd4
- 2.Qb4#
- 1...Sec7
- 2.Qb3#
- 2.Qb4#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- S(f);N_GUARD,P_SPINS(d)::QAR(E),XS(f)
- S(f);N_GUARD,P_SPINS(d)::QAR(E)
- Tries
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- S(f);OGATE,P_SPINS(d),XB(C)::QAR1(E),XS(f)
- S(d);P_PINB(C),P_SPINS(f)::QAR1(E)
- S(f);N_GUARD,P_SPINS(d)::QAR1(E),XS(f)
- P(a);OGATEB::QAB(E)
- Refutation
- R(e);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(d);OGATE,P_PINB(C),P_SPINS(f)::QAR1(E)
- S(f);P_SPINS(d)::QAR2(E)
- Refutation
- S(f);P_SPINS(d),XB(C)
- Try
- Actual
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(f);P_SPINS(d),XB(C)::QAR1(E)
- S(d);P_PINB(C),P_SPINS(f)::QAB1(E)
- S(d);OGATE,P_PINB(C),P_SPINS(f)::QAR2(E)
- S(f);P_SPINS(d)::QAR1(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).