MESON Chess Problem Database
Problem Display
PID: 148122 (8/K1p5/npPB3q/b2NRb2/3k4/3P3n/1r1Q1r2/3N4 w - - 0 1)
Goumondy, Claude
Probleemblad, 1967
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qe3
- 2.Qxe3#
- 1...Qg7
- 2.Qe3#
- 1...Qf8
- 2.Qe3#
- 1...Qh4
- 2.Qe3#
- 1...Qh5
- 2.Qe3#
- 1...Qxd6
- 2.Qe3#
- 1...Qe6
- 2.Qe3#
- 1...Qf6
- 2.Qe3#
- 1...Qg6
- 2.Qe3#
- 1...Qh7
- 2.Qe3#
- 1...Qh8
- 2.Qe3#
- 1...Rb4
- 2.Qc3#
- 1...Rf4
- 2.Qe3#
- 1...Bc3
- 2.Qxc3#
- 1...Sf4
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sb4
- 2.Qc3#
- 1...Qe3
- Tries
- 1.Sb4?
- threat
- 2.Rd5#
- 2.Qc3#
- 1...Qxd2
- 2.Rd5#
- 1...Qxd6
- 2.Qc3#
- 2.Qe3#
- 1...Rbxd2
- 2.Rd5#
- 1...Rxb4
- 2.Qc3#
- 1...Rfxd2
- 2.Rd5#
- 1...Bxd3
- 2.Qc3#
- 2.Qxd3#
- 1...Sxb4
- 2.Qc3#
- 1...Qe6
- 2.Qc3#
- 2.Qe3#
- 1...Rc2
- 2.Sxc2#
- 2.Rd5#
- 1...Rb3
- 2.Sc2#
- 2.Rd5#
- 1...Be4
- 2.Rxe4#
- 2.Qc3#
- 1...Be6
- 2.Re4#
- 2.Qc3#
- 1...Sf4
- 2.Qc3#
- 2.Qe3#
- 1...Bxb4!
- threat
- 1.Sf4?
- threat
- 2.Rd5#
- 2.Qe3#
- 1...Qxd6
- 2.Qe3#
- 1...Rbxd2
- 2.Rd5#
- 1...Rfxd2
- 2.Rd5#
- 1...Rxf4
- 2.Qe3#
- 1...Bxd2
- 2.Rd5#
- 1...Bxd3
- 2.Qxd3#
- 1...Sxf4
- 2.Qe3#
- 1...Qe6
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Re2
- 2.Sxe2#
- 2.Rd5#
- 1...Rf3
- 2.Se2#
- 2.Rd5#
- 1...Be4
- 2.Rxe4#
- 2.Qe3#
- 1...Be6
- 2.Re4#
- 2.Qe3#
- 1...Sb4
- 2.Qc3#
- 2.Qe3#
- 1...Qxf4!
- threat
- 1.Sf6?
- threat
- 2.Rd5#
- 1...Qxf6
- 2.Qe3#
- 1...Bxd3
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Be6
- 2.Re4#
- 1...Sf4
- 2.Qe3#
- 1...Sb4
- 2.Qc3#
- 1...Rb5!
- threat
- 1.Sb4?
- Keys
- 1.S5c3!
- threat
- 2.Rd5#
- 1...Qxd6
- 2.Qe3#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxd3
- 2.Re4#
- 1...Qe6
- 2.Qe3#
- 1...Rb5
- 2.Sxb5#
- 1...Be4
- 2.Rxe4#
- 1...Be6
- 2.Re4#
- 1...Sf4
- 2.Qe3#
- 1...Sb4
- 2.Sb5#
- threat
- 1.S5c3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 12
- Sets
- Q(i);N_GUARD::QAB1(B),XQ(i)
- Q(i);N_GUARD::QAB1(B)
- Q(i);N_GUARD,XB(G)::QAB1(B)
- R(a);S_CUTB(e)::QAB1(B)
- R(b);S_CUTQ(i)::QAB1(B)
- B(e);N_GUARD::QAB1(B),XB(e)
- S(c);S_CUTQ(i)::QAB1(B)
- S(g);S_CUTB(e)::QAB1(B)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(i);XQ(B)::R1(E)
- R(a);XQ(B)::R1(E)
- R(a);XS(D)::QAB1(B)
- R(b);XQ(B)::R1(E)
- S(g);XS(D)::QAB1(B)
- Refutation
- B(e);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(i);XB(G)::QAB1(B)
- R(a);XQ(B)::R1(E)
- R(b);XQ(B)::R1(E)
- R(b);XS(D)::QAB1(B)
- B(e);XQ(B)::R1(E)
- B(f);OGATE,P_SPINB(f),XP(C)::QAR1(B),XB(f)
- S(c);XS(D)::QAB1(B)
- Q(i);::QAB1(B)
- R(a);::QAB1(B)
- Refutation
- Q(i);XS(D)
- Try
- S(D);
- Threat
- R1(E)
- Vars
- Q(i);N_GUARD,XS(D)::QAB1(B)
- B(f);N_GUARD,P_SPINB(f),XP(C)::R1(E)
- B(f);N_GUARD::R1(E),XB(f)
- B(f);N_GUARD::R1(E)
- S(c);S_CUTQ(i)::QAB1(B)
- S(g);S_CUTB(e)::QAB1(B)
- Refutation
- R(a);
- Try
- Actual
- S(D);
- Threat
- R1(E)
- Vars
- Q(i);N_GUARD,XB(G)::QAB1(B)
- B(e);OGATE,XS(D)::QAB1(B),XB(e)
- B(f);N_GUARD,P_SPINB(f),XP(C)::R1(E)
- Q(i);N_GUARD::QAB1(B)
- R(a);N_GUARD::S(D),XR(a)
- B(f);N_GUARD::R1(E),XB(f)
- B(f);N_GUARD::R1(E)
- S(c);S_CUTQ(i)::QAB1(B)
- S(g);S_CUTR(a)::S(D)
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).