MESON Chess Problem Database
Problem Display
PID: 71997 (3rR3/N3Q1pK/BPP4p/R3n1r1/n1PkPN2/5P2/3Pp3/b4b2 w - - 0 1)
Anonymous
Original for 08. WCCT, 2007
#2
13 + 10
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qxe5#
- 1...Rg2
- 2.Qxe5#
- 1...Rg3
- 2.Qxe5#
- 1...Rg4
- 2.Qxe5#
- 1...Rg6
- 2.Qxe5#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Qxd6#
- 1...Ra8
- 2.Rd5#
- 2.Qd6#
- 1...Rb8
- 2.Rd5#
- 2.Qd6#
- 1...Rc8
- 2.Rd5#
- 2.Qd6#
- 1...Rxe8
- 2.Rd5#
- 2.Qd6#
- 1...Sb2
- 2.Qc5#
- 1...Sc3
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sxb6
- 2.Qc5#
- 1...Sd3
- 2.Se6#
- 1...Sxc6
- 2.Sxc6#
- 1...Rg1
- Tries
- 1.Qa3?
- threat
- 2.Se6#
- 2.Qe3#
- 1...Rxe8
- 2.Rd5#
- 2.Qd6#
- 2.Qe3#
- 1...Sxf3
- 2.Qd3#
- 2.Qe3#
- 1...Sxc4
- 2.Se6#
- 2.Qd3#
- 1...e1Q
- 2.Se6#
- 1...e1R
- 2.Se6#
- 1...Rg6
- 2.Qe3#
- 1...Rd6
- 2.Qxd6#
- 2.Qe3#
- 1...Bh3
- 2.Sxe2#
- 2.Qe3#
- 1...Sc3
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 2.Qxa1#
- 2.Qe3#
- 1...Sd3
- 2.Se6#
- 2.Qxd3#
- 1...Sg4
- 2.Se6#
- 2.Qd3#
- 1...Bc3!
- threat
- 1.Qxg5?
- threat
- 2.Qg1#
- 2.Qxe5#
- 1...Rxe8
- 2.Rd5#
- 2.Qg1#
- 1...Sxf3
- 2.Qxd8#
- 1...Sxc4
- 2.Sb5#
- 1...Sxc6
- 2.Sxc6#
- 2.Qg1#
- 1...e1Q
- 2.Qxe5#
- 1...e1B
- 2.Qxe5#
- 1...e1R
- 2.Qxe5#
- 1...Rd5
- 2.Rxd5#
- 2.Qg1#
- 1...Bg2
- 2.Qxe5#
- 1...Sd3
- 2.Se6#
- 2.Rxd8#
- 2.Qxd8#
- 1...Sg4
- 2.Rxd8#
- 2.Qxd8#
- 1...Sg6
- 2.Rxd8#
- 2.Qxd8#
- 2.Qg1#
- 1...Sd7
- 2.Rd5#
- 2.Qg1#
- 2.Qd5#
- 1...Sf7
- 2.Qg1#
- 1...hxg5!
- threat
- 1.c5?
- threat
- 2.Se6#
- 1...Sxc5
- 2.Qxc5#
- 1...Sxf3
- 2.Rxa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Rg6
- 2.Qxe5#
- 1...Rd6
- 2.Qxd6#
- 1...Bh3
- 2.Sxe2#
- 1...Sc4
- 2.Sb5#
- 1...Sg4
- 2.Rxa4#
- 1...Sg6
- 2.Rxa4#
- 1...Sd7
- 2.Rxa4#
- 1...Sf7
- 2.Rxa4#
- 1...Sd3!
- threat
- 1.Qa3?
- Keys
- 1.Qb4!
- threat
- 2.Sb5#
- 1...Sxf3
- 2.c5#
- 1...Sxc4
- 2.Qxc4#
- 1...Sxc6
- 2.Sxc6#
- 1...Rd5
- 2.Rxd5#
- 1...Sc3
- 2.Qc5#
- 1...Sd3
- 2.Se6#
- 1...Sg4
- 2.c5#
- 1...Sg6
- 2.c5#
- 1...Sd7
- 2.c5#
- 1...Sf7
- 2.c5#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 9
- Sets
- R(g);N_GUARD::QAB1(K),XS(f)
- R(j);N_GUARD::R1(F),XR(j)
- R(j);N_GUARD::QAR2(K),XR(j)
- S(d);N_GUARD::QAB1(K)
- S(d);N_GUARD::QAB1(K),XS(d)
- S(d);N_GUARD,XP(H)::QAB1(K)
- S(f);SBLOCK::S(E)
- S(f);XP(I)::S(J),XS(f)
- Tries
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- P(c);::S(E)
- R(g);::QAB1(K)
- S(d);N_GUARD::QAB1(K)
- Refutation
- B(a);
- Try
- Q(K);XR(g)
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XP(B)::QAR(K),XR(j)
- S(f);SBLOCK,XP(C)::S(J)
- P(c);::QAB1(K),XS(f)
- B(b);::QAB1(K),XS(f)
- S(f);::QAB(K)
- Refutation
- P(h);XQ(K)
- Try
- P(C);
- Threat
- S(E)
- Vars
- S(d);OGATE,XP(C)::QAB1(K),XS(d)
- S(f);N_GUARD,XP(B)::R(F),XS(d)
- S(f);XP(I)::S(J),XS(f)
- R(g);N_GUARD::QAB1(K),XS(f)
- R(j);N_GUARD::QAR2(K),XR(j)
- B(b);N_GUARD::S(E),XP(c)
- S(f);SBLOCK::S(J)
- S(f);N_GUARD::R(F),XS(d)
- Refutation
- S(f);
- Try
- Actual
- Q(K);
- Threat
- S(J)
- Vars
- S(f);N_GUARD,XP(B)::QAR(K)+P(C)
- S(f);OGATE,P_SPINS(f),XP(C)::QAR1(K),XS(f)
- S(f);XP(I)::S(J),XS(f)
- R(j);N_GUARD::R1(F),XR(j)
- S(d);N_GUARD::QAB1(K)
- S(f);SBLOCK::S(E)
- S(f);N_GUARD::QAR(K)+P(C)
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).