MESON Chess Problem Database
Problem Display
PID: 71445 (4N3/2p5/2Kn4/3PR3/5kP1/5P2/5Q2/5n1B w - - 0 1)
Dalla Rosa, Pedro
Faria, Oswaldo
To Mat, 1958
#2
8 + 4
SOLUTION
- SOUND
- Sets
- 1...Kxe5
- 2.f4#
- 1...Sd2
- 2.Qh2#
- 1...Sh2
- 2.Qxh2#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qe3#
- 1...Sc4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sb7
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Sxe8
- 2.Rf5#
- 1...Kxe5
- Tries
- 1.Sxd6?
- threat
- 2.Rf5#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qe3#
- 1...Kxe5!
- threat
- 1.Sf6?
- 1...Sf5
- 2.Rxf5#
- 1...Sd2
- 2.Qh2#
- 1...Sh2
- 2.Qxh2#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qe3#
- 1...Sc4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sb7
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...Kxe5!
- 1...Sf5
- 1.Sxc7?
- 1...Sf5
- 2.Rxf5#
- 1...Sd2
- 2.Qh2#
- 1...Sh2
- 2.Qxh2#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qe3#
- 1...Sc4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sb7
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...Kxe5!
- 1...Sf5
- 1.Sg7?
- 1...Sf5
- 2.Rxf5#
- 1...Sd2
- 2.Qh2#
- 1...Sh2
- 2.Qxh2#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qe3#
- 1...Sc4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sb7
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...Kxe5!
- 1...Sf5
- 1.Qg1?
- 1...Sxe8
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sd2
- 2.Qh2#
- 1...Sh2
- 2.Qxh2#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qe3#
- 1...Sc4
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sb7
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Kxe5!
- 1...Sxe8
- 1.Sxd6?
- Keys
- 1.Qh4!
- 1...Kxe5
- 2.Qf6#
- 1...Sxe8
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sd2
- 2.Qh2#
- 1...Sh2
- 2.Qxh2#
- 1...Se3
- 2.Qh2#
- 1...Sg3
- 2.Qg5#
- 1...Sc4
- 2.Re4#
- 1...Sb5
- 2.Re4#
- 1...Sf5
- 2.Re4#
- 1...Sb7
- 2.Re4#
- 1...Sf7
- 2.Re4#
- 1...Sc8
- 2.Re4#
- 1...Kxe5
- 1.Qh4!
This is a version
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);OGATE,S_FLIGHT,XR(F)::P(C)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::R1(F)
- S(c);N_GUARD::R1(F),XS(c)
- S(c);N_GUARD,XS(H)::R1(F)
- Tries
- Try
- S(H);XS(c)
- Threat
- R1(F)
- Vars
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- S(H);
- Vars
- S(c);N_GUARD::R1(F),XS(c)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::R1(F)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- S(H);XP(d)
- Vars
- S(c);N_GUARD::R1(F),XS(c)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::R1(F)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- S(H);
- Vars
- S(c);N_GUARD::R1(F),XS(c)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::R1(F)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- Q(B);
- Vars
- S(c);N_GUARD,XS(H)::R1(F)
- S(c);N_GUARD::R1(F),XS(c)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- S(c);N_GUARD::R1(F)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- Actual
- Q(B);
- Vars
- K(b);S_FLIGHT,XR(F)::QAB1(B)
- S(c);N_GUARD,XS(H)::R1(F)
- S(c);N_GUARD::R1(F),XS(c)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);SBLOCK::QAB1(B)
- S(c);N_GUARD::R1(F)
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).