MESON Chess Problem Database
Problem Display
PID: 257269 (Q6b/3r4/7R/2BPkNnK/6P1/4P3/2Bn4/q2R3b w - - 0 1)
Vilkauskas, Antanas
Sachmatija, 2021
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bxd4#
- 1...Qb1
- 2.Bd4#
- 1...Qc1
- 2.Bd4#
- 1...Qxd1
- 2.Bd4#
- 1...Qa2
- 2.Bd4#
- 1...Qa3
- 2.Bd4#
- 1...Qa5
- 2.Bd4#
- 1...Qa6
- 2.Bd4#
- 1...Rxd5
- 2.Qxh8#
- 1...Rd6
- 2.Bxd6#
- 1...Ra7
- 2.Bd6#
- 1...Rc7
- 2.Bd6#
- 1...Re7
- 2.Bd6#
- 1...Rf7
- 2.Bd6#
- 1...Rg7
- 2.Bd6#
- 1...Rh7
- 2.Bd6#
- 1...Bxd5
- 2.Qxa1#
- 1...Sf1
- 2.Qxa1#
- 1...Sf3
- 2.Re6#
- 1...Sh3
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sf7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Qd4
- Keys
- 1.Se7!
- threat
- 2.Qxa1#
- 2.Qxh8#
- 1...Qxd1
- 2.Bd4#
- 2.Qxh8#
- 1...Qxa8
- 2.Bd4#
- 1...Rxd5
- 2.Sc6#
- 2.Qxh8#
- 1...Rxe7
- 2.Bd6#
- 1...Qb2
- 2.Qxh8#
- 1...Qc3
- 2.Qxh8#
- 1...Qd4
- 2.Bxd4#
- 2.Qxh8#
- 1...Qb1
- 2.Bd4#
- 2.Qxh8#
- 1...Qc1
- 2.Bd4#
- 2.Qxh8#
- 1...Qa2
- 2.Bd4#
- 2.Qxh8#
- 1...Qa3
- 2.Bd4#
- 2.Qxh8#
- 1...Qa4
- 2.Qxh8#
- 1...Qa5
- 2.Bd4#
- 2.Qxh8#
- 1...Qa6
- 2.Bd4#
- 1...Qa7
- 2.Qxh8#
- 1...Rd6
- 2.Bxd6#
- 2.Qxa1#
- 1...Ra7
- 2.Bd6#
- 2.Qxh8#
- 1...Rb7
- 2.Bd6#
- 2.Qxh8#
- 1...Rd8
- 2.Qxa1#
- 1...Bf6
- 2.Sg6#
- 2.Qxa1#
- 1...Bg7
- 2.Qxa1#
- 1...Sb1
- 2.Sc6#
- 2.Qxh8#
- 1...Sb3
- 2.Sc6#
- 2.Qxh8#
- 1...Sdf3
- 2.Sc6#
- 2.Qxh8#
- 1...Sc4
- 2.Sc6#
- 2.Qxh8#
- 1...Sde4
- 2.Sc6#
- 1...Sgf3
- 2.Re6#
- 2.Qxh8#
- 1...Sge4
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sf7
- 2.Re6#
- 2.Qxa1#
- 1...Sh7
- 2.Re6#
- 2.Qxa1#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 20
- Sets
- Q(a);N_GUARD::B(E),XQ(a)
- Q(a);N_GUARD::B(E)
- Q(a);N_GUARD,P_PINP(D),XR(A)::B(E)
- R(f);N_GUARD,SBLOCK,XP(F)::QAB(J),XB(g)
- R(f);N_GUARD::B(E),XR(f)
- R(f);N_GUARD::B(E)
- R(f);N_GUARD,P_PINR(I)::B(E)
- B(b);SBLOCK,XP(F)::QAB(J),XQ(a)
- S(c);::QAB(J),XQ(a)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(e)
- Actual
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XQ(J)::B(E)
- R(f);N_GUARD,XS(G)::B(E)
- Q(a);::QAB(J),XB(g)
- Q(a);N_GUARD::B(E)
- R(f);::QAB(J),XQ(a)
- B(g);::QAB(J),XQ(a)
- S(c);::S(G)
- S(e);N_GUARD::R1(I)
- S(e);N_GUARD::R1(I),XS(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).