MESON Chess Problem Database
Problem Display
PID: 80319 (4q3/r3Np2/3BRr2/2R2p2/1P1kB3/n5Q1/8/3n1bK1 w - - 0 1)
Melnichenko, Viktor Oleksandrovich
3rd Comm., Mat Plus, 1996
#2
8 + 9
| 5929 | Mat Plus Special Issue | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Sxc6#
- 1...Qb8
- 2.Sc6#
- 1...Qd8
- 2.Sc6#
- 1...Qf8
- 2.Sc6#
- 1...Qg8
- 2.Sc6#
- 1...Qh8
- 2.Sc6#
- 1...Rg6
- 2.Sxf5#
- 1...Rh6
- 2.Sxf5#
- 1...Rd7
- 2.Sc6#
- 1...Bg2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Bh3
- 2.Qd3#
- 1...Sb2
- 2.Qf2#
- 2.Qc3#
- 1...Sf2
- 2.Qxf2#
- 2.Qc3#
- 1...Sc3
- 2.Qf2#
- 2.Qxc3#
- 1...Se3
- 2.Qe5#
- 1...Sc4
- 2.Rd5#
- 1...fxe4
- 2.Be5#
- 1...Qc6
- Tries
- 1.Bh1?
- threat
- 2.Be5#
- 1...Rxe6
- 2.Sxf5#
- 1...Se3
- 2.Qxe3#
- 1...Qb8
- 2.Sc6#
- 1...Sc4
- 2.Rd5#
- 1...Bg2!
- threat
- 1.Bc2?
- threat
- 2.Be5#
- 2.Qf4#
- 2.Qe5#
- 1...Rxe6
- 2.Sxf5#
- 1...Qc6
- 2.Sxc6#
- 2.Be5#
- 2.Qe5#
- 1...Qa8
- 2.Be5#
- 2.Qe5#
- 1...Qb8
- 2.Sc6#
- 2.Qf4#
- 2.Qe5#
- 1...Qg8
- 2.Sc6#
- 2.Be5#
- 1...Rg6
- 2.Sxf5#
- 2.Be5#
- 1...Bg2
- 2.Be5#
- 2.Qe5#
- 2.Qd3#
- 1...Bd3
- 2.Qe5#
- 2.Qxd3#
- 1...Bc4
- 2.Be5#
- 2.Qe5#
- 1...Sf2
- 2.Be5#
- 2.Qxf2#
- 2.Qe5#
- 2.Qc3#
- 2.Qe3#
- 1...Sc3
- 2.Be5#
- 2.Qf2#
- 2.Qe5#
- 2.Qxc3#
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...f4
- 2.Be5#
- 2.Re4#
- 1...Sxc2!
- threat
- 1.Bg2?
- threat
- 2.Be5#
- 1...Rxe6
- 2.Sxf5#
- 1...Se3
- 2.Qxe3#
- 1...Qb8
- 2.Sc6#
- 1...Sc4
- 2.Rd5#
- 1...Bxg2!
- threat
- 1.Bd5?
- threat
- 2.Be5#
- 1...Rxe6
- 2.Sxf5#
- 1...Se3
- 2.Qxe3#
- 1...Qb8
- 2.Sc6#
- 1...Sc4!
- threat
- 1.Bxf5?
- threat
- 2.Be5#
- 2.Re4#
- 2.Qf4#
- 2.Qh4#
- 2.Qe5#
- 2.Qg4#
- 1...Qxe7
- 2.Be5#
- 2.Qf4#
- 2.Qh4#
- 2.Qe5#
- 2.Qg4#
- 1...Rxf5
- 2.Sxf5#
- 1...Rxe7
- 2.Be5#
- 2.Qf4#
- 2.Qh4#
- 2.Qe5#
- 2.Qg4#
- 1...fxe6
- 2.Be5#
- 2.Qf4#
- 2.Qe5#
- 1...Qc6
- 2.Sxc6#
- 2.Be5#
- 2.Qe5#
- 1...Qa8
- 2.Be5#
- 2.Qe5#
- 1...Qb8
- 2.Sc6#
- 2.Re4#
- 2.Qf4#
- 2.Qh4#
- 2.Qe5#
- 2.Qg4#
- 1...Qg8
- 2.Sc6#
- 2.Be5#
- 2.Re4#
- 1...Qh8
- 2.Sc6#
- 2.Be5#
- 2.Re4#
- 2.Qf4#
- 2.Qe5#
- 2.Qg4#
- 1...Rg6
- 2.Be5#
- 2.Re4#
- 1...Rh6
- 2.Be5#
- 2.Re4#
- 2.Qf4#
- 2.Qe5#
- 2.Qg4#
- 1...Be2
- 2.Be5#
- 2.Re4#
- 2.Qf4#
- 2.Qe5#
- 1...Bg2
- 2.Be5#
- 2.Qe5#
- 2.Qd3#
- 1...Bd3
- 2.Be5#
- 2.Qe5#
- 2.Qxd3#
- 1...Bh3
- 2.Be5#
- 2.Re4#
- 2.Qf4#
- 2.Qe5#
- 2.Qd3#
- 1...Bc4
- 2.Be5#
- 2.Re4#
- 2.Qe5#
- 1...Sf2
- 2.Be5#
- 2.Qxf2#
- 2.Qe5#
- 2.Qc3#
- 2.Qe3#
- 1...Sc3
- 2.Be5#
- 2.Qf2#
- 2.Qe5#
- 2.Qxc3#
- 2.Qe3#
- 1...Se3
- 2.Be5#
- 2.Qf4#
- 2.Qe5#
- 2.Qxe3#
- 1...Sc4
- 2.Rd5#
- 2.Re4#
- 1...Rxe6!
- threat
- 1.Bc6?
- threat
- 2.Be5#
- 1...Qxc6
- 2.Sxc6#
- 1...Rxe6
- 2.Sxf5#
- 1...Se3
- 2.Qxe3#
- 1...Sc4
- 2.Rd5#
- 1...Qb8!
- threat
- 1.Bb7?
- threat
- 2.Be5#
- 1...Rxe6
- 2.Sxf5#
- 1...Se3
- 2.Qxe3#
- 1...Qc6
- 2.Sxc6#
- 1...Qb8
- 2.Sc6#
- 1...Sc4
- 2.Rd5#
- 1...Rxb7!
- threat
- 1.Rc4+?
- 1...Bxc4
- 2.Bc5#
- 1...Sxc4
- 2.Bc5#
- 1...Kxc4!
- 1...Bxc4
- 1.Qf2+?
- 1...Se3
- 2.Qb2#
- 1...Sxf2!
- 1...Se3
- 1.Bh1?
- Keys
- 1.Bd3!
- threat
- 2.Be5#
- 1...Rxe6
- 2.Sxf5#
- 1...Bxd3
- 2.Qe5#
- 1...Se3
- 2.Qxe3#
- 1...Sc4
- 2.Rxc4#
- 1...Qb8
- 2.Sc6#
- threat
- 1.Bd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(i);N_GUARD::S(H),XQ(i)
- Q(i);N_GUARD::S(H)
- Q(i);N_GUARD,P_PINQ(B)::S(H)
- R(f);N_GUARD,P_PINQ(B)::S(H),XP(e)
- R(f);N_GUARD::S(H),XP(e)
- R(g);S_CUTQ(i)::S(H)
- B(b);N_GUARD::QAR1(B)
- B(b);N_GUARD::QAR1(B),XB(b)
- S(a);SBLOCK::QAB1(B)
- S(c);SBLOCK::R1(E)
- P(e);SBLOCK,XB(D)::B(F)
- Tries
- Try
- B(D);
- Threat
- B(F)
- Vars
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- S(a);N_GUARD::QAB1(B),XS(a)
- Q(i);N_GUARD::S(H)
- S(c);SBLOCK::R1(E)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- S(c);SBLOCK::R1(E)
- Refutation
- S(c);XB(D)
- Try
- B(D);
- Threat
- B(F)
- Vars
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- S(a);N_GUARD::QAB1(B),XS(a)
- Q(i);N_GUARD::S(H)
- S(c);SBLOCK::R1(E)
- Refutation
- B(b);XB(D)
- Try
- B(D);
- Threat
- B(F)
- Vars
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- S(a);N_GUARD::QAB1(B),XS(a)
- Q(i);N_GUARD::S(H)
- Refutation
- S(c);
- Try
- B(D);XP(e)
- Threat
- DUALS(6)
- Vars
- R(f);XB(D)::S(H),XR(f)
- Refutation
- R(f);XR(G)
- Try
- B(D);
- Threat
- B(F)
- Vars
- Q(i);XB(D)::S(H),XQ(i)
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(c);SBLOCK::R1(E)
- Refutation
- Q(i);
- Try
- B(D);
- Threat
- B(F)
- Vars
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- S(a);N_GUARD::QAB1(B),XS(a)
- Q(i);N_GUARD::S(H),XQ(i)
- Q(i);N_GUARD::S(H)
- S(c);SBLOCK::R1(E)
- Refutation
- R(g);XB(D)
- Try
- R(E);CHECK
- Vars
- B(b);SBLOCK,XR(E)::B(F)
- S(c);SBLOCK,XR(E)::B(F)
- Refutation
- K(d);P-FLIGHT,XR(E)
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a),SBLOCK::QAB(B)
- Refutation
- S(a);XQ(B)
- Try
- Actual
- B(D);
- Threat
- B(F)
- Vars
- R(f);N_GUARD,XR(G)::S(H),XP(e)
- B(b);SBLOCK,XB(D)::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(c);N_GUARD::R1(E),XS(c)
- Q(i);N_GUARD::S(H)
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).