MESON Chess Problem Database
Problem Display
PID: 71965 (7Q/4p1B1/1pp2nr1/Rn1P1Np1/bpkP1Pp1/8/2PP2B1/2N3K1 w - - 0 1)
Anonymous
Original for 08. WCCT, 2007
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Bb3
- 2.cxb3#
- 1...Sa3
- 2.Bf1#
- 1...Sc3
- 2.d3#
- 1...Sxd4
- 2.Se3#
- 1...Sd6
- 2.Bf1#
- 1...Sa7
- 2.Bf1#
- 1...Sc7
- 2.Bf1#
- 1...Se4
- 2.Se3#
- 1...Sxd5
- 2.Bf1#
- 1...Sh5
- 2.Se3#
- 1...Sd7
- 2.Se3#
- 1...Sh7
- 2.Se3#
- 1...Se8
- 2.Se3#
- 1...Sg8
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...cxd5
- 2.Bf1#
- 1...Bb3
- Tries
- 1.Sa2?
- threat
- 2.d3#
- 1...Se4
- 2.Se3#
- 1...Bxc2!
- threat
- 1.Se2?
- threat
- 2.Se3#
- 2.d3#
- 1...Sxd5
- 2.d3#
- 1...gxf4
- 2.d3#
- 1...Se4
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...Bxc2!
- threat
- 1.Sd3?
- threat
- 2.Sb2#
- 2.Se5#
- 1...Se4
- 2.Se3#
- 1...Sd7
- 2.Sb2#
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...e5
- 2.Sb2#
- 2.Sxe5#
- 1...Bxc2!
- threat
- 1.Qh1?
- threat
- 2.Bf1#
- 1...Sxd4
- 2.Se3#
- 1...Se4
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...Sc3
- 2.d3#
- 1...Bxc2!
- threat
- 1.Qc8?
- threat
- 2.Qxc6#
- 1...Sxd4
- 2.Se3#
- 1...Sxd5
- 2.Bf1#
- 1...Se4
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...Sa3
- 2.Bf1#
- 1...Sc3
- 2.d3#
- 1...Sd6
- 2.Bf1#
- 1...Sa7
- 2.Bf1#
- 1...Sc7
- 2.Bf1#
- 1...Sh5
- 2.Se3#
- 1...Sd7
- 2.Se3#
- 1...Sh7
- 2.Se3#
- 1...Se8
- 2.Se3#
- 1...Sg8
- 2.Se3#
- 1...c5!
- threat
- 1.Qd8?
- threat
- 2.Bf1#
- 1...Sxd4
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...Sc3
- 2.d3#
- 1...Sd7
- 2.Se3#
- 1...Bxc2!
- threat
- 1.Qe8?
- threat
- 2.Qxc6#
- 1...Sxd4
- 2.Se3#
- 1...Sxd5
- 2.Bf1#
- 1...Sxe8
- 2.Se3#
- 1...cxd5
- 2.Bf1#
- 2.Qc6#
- 1...Se4
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...Sa3
- 2.Bf1#
- 1...Sc3
- 2.d3#
- 1...Sd6
- 2.Bf1#
- 1...Sa7
- 2.Bf1#
- 1...Sc7
- 2.Bf1#
- 1...Sh5
- 2.Se3#
- 1...Sd7
- 2.Se3#
- 1...Sh7
- 2.Se3#
- 1...Sg8
- 2.Se3#
- 1...c5!
- threat
- 1.c3?
- threat
- 2.Se3#
- 1...Sxc3
- 2.d3#
- 1...Sxd5
- 2.Bf1#
- 1...bxc3
- 2.Rxa4#
- 1...gxf4!
- threat
- 1.Sa2?
- Keys
- 1.Qa8!
- threat
- 2.Qxc6#
- 1...Sxd4
- 2.Se3#
- 1...Sxd5
- 2.Bf1#
- 1...cxd5
- 2.Bf1#
- 2.Qc6#
- 1...Se4
- 2.Se3#
- 1...b3
- 2.Rxa4#
- 1...Sa3
- 2.Bf1#
- 1...Sc3
- 2.d3#
- 1...Sd6
- 2.Bf1#
- 1...Sa7
- 2.Bf1#
- 1...Sc7
- 2.Bf1#
- 1...Sh5
- 2.Se3#
- 1...Sd7
- 2.Se3#
- 1...Sh7
- 2.Se3#
- 1...Se8
- 2.Se3#
- 1...Sg8
- 2.Se3#
- 1...c5
- 2.Bf1#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- B(a);OGATE::P(C),XB(a)
- S(e);::B(E)
- S(e);SBLOCK::P(D)
- S(e);SBLOCK,XP(F)::S(J)
- S(i);::S(J)
- S(i);SBLOCK,XP(I)::B(E)
- P(b);OGATEB::R(H),XB(a)
- P(h);SBLOCK,XP(I)::B(E)
- Tries
- Try
- S(A);
- Threat
- P(D)
- Vars
- S(i);::S(J)
- Refutation
- B(a);XP(C)
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- S(i);XP(I)::P(D)
- P(f);XP(G)::P(D)
- S(i);::S(J)
- P(b);OGATEB::R(H),XB(a)
- Refutation
- B(a);XP(C)
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- S(i);::S(J)
- P(b);OGATEB::R(H),XB(a)
- Refutation
- B(a);XP(C)
- Try
- Q(L);
- Threat
- B(E)
- Vars
- S(e);SBLOCK,XP(F)::S(J)
- S(i);::S(J)
- P(b);OGATEB::R(H),XB(a)
- S(e);SBLOCK::P(D)
- Refutation
- B(a);XP(C)
- Try
- Q(L);P_PINP(h)
- Threat
- QAR2(L),XP(h)
- Vars
- S(e);SBLOCK,XP(F)::S(J)
- S(i);SBLOCK,XP(I)::B(E)
- S(i);::S(J)
- P(b);OGATEB::R(H),XB(a)
- S(e);::B(E)
- S(e);SBLOCK::P(D)
- S(e);N_SPINP(h)::B(E)
- Refutation
- P(h);
- Try
- Q(L);
- Threat
- B(E)
- Vars
- S(e);SBLOCK,XP(F)::S(J)
- P(b);OGATEB::R(H),XB(a)
- S(e);SBLOCK::P(D)
- S(i);::S(J)
- Refutation
- B(a);XP(C)
- Try
- Q(L);
- Threat
- QAR2(L),XP(h)
- Vars
- S(e);SBLOCK,XP(F)::S(J)
- S(i);SBLOCK,XP(I)::B(E)
- S(i);XQ(L)::S(J)
- S(i);::S(J)
- P(b);OGATEB::R(H),XB(a)
- S(e);::B(E)
- S(e);SBLOCK::P(D)
- Refutation
- P(h);
- Try
- P(C);
- Threat
- S(J)
- Vars
- S(e);SBLOCK,XP(C)::P(D)
- S(i);SBLOCK,XP(I)::B(E)
- P(b);OGATEB,XP(C)::R(H),XB(a)
- Refutation
- P(f);XP(G)
- Try
- Actual
- Q(L);
- Threat
- QAR2(L),XP(h)
- Vars
- S(e);SBLOCK,XP(F)::S(J)
- S(i);SBLOCK,XP(I)::B(E)
- S(i);::S(J)
- P(b);OGATEB::R(H),XB(a)
- S(e);::B(E)
- S(e);SBLOCK::P(D)
- P(h);::B(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).