MESON Chess Problem Database
Problem Display
PID: 276698 (8/4R3/p1KN1np1/8/2pkp3/Q7/2P1P3/N2n4 w - - 0 1)
Magini, Fabio
Best Problems, 2024
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.e3#
- 1...Sf2
- 2.e3#
- 1...Sc3
- 2.Qc5#
- 1...Se3
- 2.c3#
- 1...Sg4
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...Sh5
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...Sh7
- 2.Rxe4#
- 1...Se8
- 2.Rxe4#
- 1...Sg8
- 2.Rxe4#
- 1...c3
- 2.Qc5#
- 1...a5
- 2.Sb5#
- 1...g5
- 2.Sf5#
- 1...Sb2
- Tries
- 1.Re6?
- 1...Sc3
- 2.Qc5#
- 1...c3
- 2.Qc5#
- 1...Sd5
- 2.Rxe4#
- 1...Sb2
- 2.e3#
- 1...Sf2
- 2.e3#
- 1...Se3
- 2.c3#
- 1...Sg4
- 2.Rxe4#
- 1...Sh5
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...Sh7
- 2.Rxe4#
- 1...Se8
- 2.Rxe4#
- 1...Sg8
- 2.Rxe4#
- 1...a5
- 2.Sb5#
- 1...g5
- 2.Sf5#
- 1...e3!
- 1...Sc3
- 1.Qb3?
- 1...Sc3
- 2.Qb6#
- 1...c3
- 2.Qb6#
- 1...Sd5
- 2.Rxe4#
- 1...Sb2
- 2.e3#
- 1...Sf2
- 2.e3#
- 1...Se3
- 2.c3#
- 1...Sg4
- 2.Rxe4#
- 1...Sh5
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...Sh7
- 2.Rxe4#
- 1...Se8
- 2.Rxe4#
- 1...Sg8
- 2.Rxe4#
- 1...e3
- 2.Qxc4#
- 1...a5
- 2.Sb5#
- 1...g5
- 2.Sf5#
- 1...cxb3!
- 1...Sc3
- 1.Qf3?
- 1...Se3
- 2.Qxf6#
- 1...e3
- 2.Qxf6#
- 1...Sd5
- 2.Rxe4#
- 1...Sb2
- 2.c3#
- 1...Sf2
- 2.c3#
- 1...Sc3
- 2.e3#
- 1...Sg4
- 2.Rxe4#
- 1...Sh5
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...Sh7
- 2.Rxe4#
- 1...Se8
- 2.Rxe4#
- 1...Sg8
- 2.Rxe4#
- 1...c3
- 2.Sb3#
- 1...a5
- 2.Sb5#
- 1...g5
- 2.Sf5#
- 1...exf3!
- 1...Se3
- 1.c3+?
- 1...Sxc3
- 2.Sc2#
- 2.Qc5#
- 1...Ke3!
- 1...Sxc3
- 1.Re6?
- Keys
- 1.Qg3!
- 1...Se3
- 2.Qe5#
- 1...e3
- 2.Qe5#
- 1...Sd5
- 2.Rxe4#
- 1...Sb2
- 2.c3#
- 1...Sf2
- 2.c3#
- 1...Sc3
- 2.e3#
- 1...Sg4
- 2.Rxe4#
- 1...Sh5
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...Sh7
- 2.Rxe4#
- 1...Se8
- 2.Rxe4#
- 1...Sg8
- 2.Rxe4#
- 1...c3
- 2.Sb3#
- 1...a5
- 2.Sb5#
- 1...g5
- 2.Sf5#
- 1...Se3
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::P(C)
- S(a);SBLOCK::QAB1(D)
- S(a);N_GUARD,SBLOCK::P(B)
- S(f);N_GUARD::R1(G),XP(d)
- P(b);::QAB1(D)
- P(e);N_GUARD::S(F)
- P(g);N_GUARD::S(F)
- Tries
- Try
- R(G);
- Vars
- S(a);SBLOCK::QAB1(D)
- P(b);::QAB1(D)
- S(f);N_GUARD::R1(G),XP(d)
- S(a);N_GUARD::P(C)
- S(a);N_GUARD,SBLOCK::P(B)
- P(e);N_GUARD::S(F)
- P(g);N_GUARD::S(F)
- Refutation
- P(d);
- Try
- Q(D);
- Vars
- S(a);SBLOCK::QAB(D)
- P(b);SBLOCK::QAB(D)
- S(f);N_GUARD::R1(G),XP(d)
- S(a);N_GUARD::P(C)
- S(a);N_GUARD,SBLOCK::P(B)
- P(d);::QAR1(D),XP(b)
- P(e);N_GUARD::S(F)
- P(g);N_GUARD::S(F)
- Refutation
- P(b);XQ(D)
- Try
- Q(D);
- Vars
- S(a);SBLOCK::QAB(D),XS(f)
- P(d);::QAB(D),XS(f)
- S(f);N_GUARD::R1(G),XP(d)
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(C)
- P(b);N_GUARD::S(A)
- P(e);N_GUARD::S(F)
- P(g);N_GUARD::S(F)
- Refutation
- P(d);XQ(D)
- Try
- P(B);CHECK
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- Actual
- Q(D);
- Vars
- S(a);SBLOCK::QAB1(D)
- P(d);::QAB1(D)
- S(f);N_GUARD::R1(G),XP(d)
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(C)
- P(b);N_GUARD::S(A)
- P(e);N_GUARD::S(F)
- P(g);N_GUARD::S(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).