MESON Chess Problem Database
Problem Display
PID: 42669 (b1Q1r3/3P4/r3n3/1NP2kPR/3PpNp1/3nK3/6B1/5R2 w - - 0 1)
Lobusov, Andrey Jakovlevic
Scacco!, 1985
#2
11 + 8
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sd6#
- 1...Ra2
- 2.Sd6#
- 1...Ra3
- 2.Sd6#
- 1...Ra4
- 2.Sd6#
- 1...Ra5
- 2.Sd6#
- 1...Rc6
- 2.Bxe4#
- 1...Rd6
- 2.Sxd6#
- 1...Ra7
- 2.Sd6#
- 1...Bc6
- 2.Sd6#
- 1...g3
- 2.Bh3#
- 1...Ra1
- Tries
- 1.Qxa6?
- threat
- 2.Sd6#
- 1...Sxd4
- 2.Qf6#
- 2.g6#
- 1...Sexf4
- 2.Qf6#
- 2.g6#
- 1...Sxg5
- 2.Sxd3#
- 2.Qg6#
- 1...g3
- 2.Bh3#
- 1...Sdxf4!
- threat
- 1.c6?
- threat
- 2.Sd6#
- 2.Bxe4#
- 1...Rxc6
- 2.Bxe4#
- 1...Bxc6
- 2.Sd6#
- 1...Sdxf4
- 2.Bxe4#
- 1...Sexf4
- 2.dxe8Q#
- 2.dxe8B#
- 1...Sxg5
- 2.dxe8S#
- 1...g3
- 2.Bh3#
- 1...Sf2
- 2.Sd6#
- 1...Sdc5
- 2.Sd6#
- 1...Sec5
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg7
- 2.Sd6#
- 1...Sd8
- 2.Sd6#
- 1...Sf8
- 2.Sd6#
- 1...Sxd4!
- threat
- 1.dxe8Q?
- threat
- 2.Sxd3#
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...Sxf4
- 2.Rxf4#
- 2.Qf7#
- 1...Sxc5
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...g3
- 2.Bh3#
- 1...Sf2
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...Ra1
- 2.Sd6#
- 2.Qcxe6#
- 2.Qg6#
- 2.Qf7#
- 2.Qexe6#
- 2.Qf8#
- 1...Ra2
- 2.Sd6#
- 2.Qcxe6#
- 2.Qg6#
- 2.Qf7#
- 2.Qexe6#
- 2.Qf8#
- 1...Ra7
- 2.Sxd3#
- 2.Sd6#
- 2.Qcxe6#
- 2.Qg6#
- 2.Qexe6#
- 1...Sc1
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...Se1
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...Sb2
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...Sb4
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Qg6#
- 2.Qf7#
- 2.Qf8#
- 1...Se5!
- threat
- 1.dxe8S?
- threat
- 2.Sg7#
- 2.g6#
- 1...g3
- 2.Bh3#
- 1...Ra7
- 2.Sbd6#
- 2.Sed6#
- 2.Qxe6#
- 2.g6#
- 1...Sxf4!
- threat
- 1.dxe8B?
- threat
- 2.Sxd3#
- 2.Bg6#
- 1...Sxf4
- 2.Rxf4#
- 1...Sxc5
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Bg6#
- 1...g3
- 2.Bh3#
- 1...Sf2
- 2.Bg6#
- 1...Ra1
- 2.Sd6#
- 2.Bg6#
- 2.Qxe6#
- 1...Ra2
- 2.Sd6#
- 2.Bg6#
- 2.Qxe6#
- 1...Sc1
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Bg6#
- 1...Se1
- 2.Bg6#
- 1...Sb2
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Bg6#
- 1...Sb4
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxe6#
- 2.Sg6#
- 2.Bg6#
- 1...Se5!
- threat
- 1.Qxa6?
- Keys
- 1.Qc6!
- threat
- 2.Sd6#
- 2.Bxe4#
- 1...Rxc6
- 2.Bxe4#
- 1...Bxc6
- 2.Sd6#
- 1...Sdxf4
- 2.Bxe4#
- 1...Sdxc5
- 2.Sd6#
- 1...Sxd4
- 2.g6#
- 1...Sexf4
- 2.g6#
- 1...Sexc5
- 2.Sxd3#
- 2.Sd6#
- 2.g6#
- 1...Sxg5
- 2.Sxd3#
- 1...g3
- 2.Bh3#
- 1...Sf2
- 2.Sd6#
- 1...Sc7
- 2.Sxd3#
- 2.Sd6#
- 2.g6#
- 1...Sg7
- 2.Sxd3#
- 2.Sd6#
- 1...Sd8
- 2.Sxd3#
- 2.Sd6#
- 2.g6#
- 1...Sf8
- 2.Sxd3#
- 2.Sd6#
- 2.g6#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- R(e);N_GUARD::S(F)
- R(e);S_CUTB(g)::B(B),XP(b)
- R(e);N_GUARD::S(F),XR(e)
- B(g);S_CUTR(e)::S(F)
- P(c);OGATEB::B(B)
- Tries
- Try
- Q(K);XR(e)
- Threat
- S(F)
- Vars
- P(c);OGATEB::B(B)
- Refutation
- S(a);P_SPINS(a),XS(E)
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- R(e);XP(G)::B(B),XP(b)
- B(g);XP(G)::S(F)
- S(a);P_SPINS(a),XS(E)::B(B),XP(b)
- S(f);P_SPINS(f),XS(E)::PXR(h)=Q
- S(f);P_SPINS(f),XP(H)::PXR(h)=S
- P(c);OGATEB::B(B)
- S(a);::S(F)
- S(f);::S(F)
- Refutation
- S(f);XP(D)
- Try
- P(J);P_PINS(f),XR(h)
- Threat
- DUALS(4)
- Vars
- P(c);OGATEB::B(B)
- Refutation
- S(a);
- Try
- P(J);P_PINS(f),XR(h)
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB::B(B)
- Refutation
- S(a);N_SPINS(f),P_SPINS(a),XS(E)
- Try
- P(J);P_PINS(f),XR(h)
- Threat
- DUALS(2)
- Vars
- S(a);N_SPINS(f),OGATE,P_SPINS(a),XS(E)::R1(A),XS(a)
- P(c);OGATEB::B(B)
- S(a);::B(J)
- Refutation
- S(a);
- Try
- Actual
- Q(K);
- Threat
- DUALS(2)
- Vars
- R(e);XQ(K)::B(B),XP(b)
- B(g);XQ(K)::S(F)
- S(a);P_SPINS(a),XS(E)::B(B),XP(b)
- S(a);XP(G)::S(F)
- S(f);N_GUARD,XP(D)::R(I)+P(H)
- S(f);N_GUARD,P_SPINS(f),XS(E)::R(I)+P(H)
- S(f);N_GUARD,P_SPINS(f),XP(H)::R(A)+S(E),XS(a)
- P(c);OGATEB::B(B)
- S(a);::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).