MESON Chess Problem Database
Problem Display
PID: 205790 (3r4/3p4/PpNnRBP1/3k4/3P4/3Q4/8/3K4 w - - 0 1)
Bermudez, Rafael J
L'Alfiere di Re, 1925
#2
8 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxc6
- 2.Qc4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qb3#
- 1...Sb5
- 2.Qb3#
- 1...Sf5
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...Sf7
- 2.Qb3#
- 1...Sc8
- 2.Qb3#
- 1...Se8
- 2.Qb3#
- 1...dxc6
- 2.Re5#
- 1...dxe6
- 2.Sb4#
- 2.Se7#
- 1...Kxc6
- Tries
- 1.Sxd8?
- threat
- 2.Re5#
- 1...Sc4
- 2.Qe4#
- 2.Qf3#
- 1...Se4
- 2.Qb3#
- 1...Sb5
- 2.Qxb5#
- 2.Qb3#
- 1...Sf5
- 2.Qb5#
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...Sf7
- 2.Qb5#
- 2.Qb3#
- 1...Sc8
- 2.Qb5#
- 2.Qb3#
- 1...Se8
- 2.Qb5#
- 2.Qb3#
- 1...dxe6!
- threat
- 1.Bxd8?
- 1...Kxc6
- 2.Qc4#
- 1...Kxe6
- 2.d5#
- 1...dxc6
- 2.Re5#
- 1...dxe6
- 2.Sb4#
- 2.Se7#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qb3#
- 1...Sb5
- 2.Qb3#
- 1...Sf5
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...Sf7
- 2.Qb3#
- 1...Sc8
- 2.Qb3#
- 1...Se8
- 2.Qb3#
- 1...b5!
- 1...Kxc6
- 1.Qe2?
- threat
- 2.Sb4#
- 2.Se7#
- 1...Kxc6
- 2.Qc4#
- 1...Re8
- 2.Sb4#
- 1...Se4
- 2.Qa2#
- 1...Sf5
- 2.Sb4#
- 2.Qa2#
- 1...Sc8
- 2.Sb4#
- 2.Qa2#
- 1...dxc6!
- threat
- 1.Qb5+?
- 1...Kxe6
- 2.Qe5#
- 1...Sxb5!
- 1...Kxe6
- 1.Qb3+?
- 1...Kxc6
- 2.Qc4#
- 1...Sc4!
- 1...Kxc6
- 1.Qf3+?
- 1...Kxe6
- 2.Sxd8#
- 2.d5#
- 1...Se4
- 2.Qb3#
- 1...Kc4!
- 1...Kxe6
- 1.Sxd8?
- Keys
- 1.Be7!
- threat
- 2.Rxd6#
- 1...Kxc6
- 2.Qc4#
- 1...Kxe6
- 2.d5#
- 1...dxc6
- 2.Re5#
- 1...dxe6
- 2.Sb4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qb3#
- 1...Sb5
- 2.Qb3#
- 1...Sf5
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...Sf7
- 2.Qb3#
- 1...Sc8
- 2.Qb3#
- 1...Se8
- 2.Qb3#
- threat
- 1.Be7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);P_SPINS(c),S_FLIGHT,XS(E)::QAR2(B)
- S(c);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::QAB(B)
- P(d);SBLOCK,XS(E)::R1(F)
- Tries
- Try
- S(E);XR(e)
- Threat
- R1(F)
- Vars
- S(c);N_GUARD::QAB(B)
- Refutation
- P(d);XR(F)
- Try
- B(G);XR(e)
- Vars
- K(a);P_SPINS(c),S_FLIGHT,XS(E)::QAR2(B)
- K(a);OGATE,S_FLIGHT,XR(F)::P(C)
- P(d);SBLOCK,XS(E)::R1(F)
- S(c);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::QAB(B)
- Refutation
- P(b);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(a);P_SPINS(c),S_FLIGHT,XS(E)::QAR2(B)
- R(e);::S(E)
- S(c);N_GUARD::QAB(B)
- Refutation
- P(d);XS(E)
- Try
- Q(B);CHECK
- Vars
- K(a);OGATE,S_FLIGHT,XR(F)::QAR1(B)
- Refutation
- S(c);XQ(B)
- Try
- Q(B);CHECK
- Vars
- K(a);P_SPINS(c),S_FLIGHT,XS(E)::QAR2(B)
- Refutation
- S(c);P_SPINS(c)
- Try
- Q(B);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAB(B)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- B(G);
- Threat
- R1(F),XS(c)
- Vars
- K(a);P_SPINS(c),S_FLIGHT,XS(E)::QAR2(B)
- K(a);OGATE,S_FLIGHT,XR(F)::P(C)
- P(d);SBLOCK,XS(E)::R1(F)
- P(d);SBLOCK,XR(F)::S(E)
- S(c);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::QAB(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).