MESON Chess Problem Database
Problem Display
PID: 15408 (4Nn2/1rp2B2/5R2/4k3/3R1NpK/br1nP3/2Q5/1b6 w - - 0 1)
Lukyanov, Valentin Volodimirovich
Melnichenko, Viktor Oleksandrovich
Schweizerische Schachzeitung, 1983
#2
8 + 9
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Sxd3#
- 1...R3b4
- 2.Sxd3#
- 1...R3b5
- 2.Sxd3#
- 1...R3b6
- 2.Sxd3#
- 1...R7b4
- 2.Qxc7#
- 1...Sc1
- 2.Re4#
- 2.Rd5#
- 2.Rf5#
- 1...Se1
- 2.Re4#
- 2.Rd5#
- 2.Rf5#
- 1...Sb2
- 2.Re4#
- 2.Rd5#
- 2.Rf5#
- 1...Sf2
- 2.Rd5#
- 2.Rf5#
- 1...Sb4
- 2.Re4#
- 2.Rf5#
- 1...Sxf4
- 2.Re4#
- 2.Rf5#
- 1...Sc5
- 2.Rd5#
- 2.Rf5#
- 1...Se6
- 2.Sg6#
- 1...Sg6+
- 2.Sxg6#
- 1...Sd7
- 2.Sg6#
- 1...Sh7
- 2.Sg6#
- 1...Rb2
- Tries
- 1.Be6?
- threat
- 2.Rf5#
- 1...Sg6+
- 2.Sxg6#
- 1...Sxf4
- 2.Re4#
- 1...Sxe6
- 2.Sg6#
- 1...Be7!
- threat
- 1.Bg6?
- threat
- 2.Re4#
- 2.Rd5#
- 2.Rf5#
- 1...Sxg6+
- 2.Sxg6#
- 1...R3b4
- 2.Sxd3#
- 2.Rd5#
- 2.Rf5#
- 1...R3b5
- 2.Sxd3#
- 2.Re4#
- 2.Rf5#
- 1...R7b4
- 2.Rd5#
- 2.Rf5#
- 2.Qxc7#
- 1...R7b5
- 2.Re4#
- 2.Rf5#
- 1...Be7
- 2.Re4#
- 2.Rd5#
- 1...Sf2
- 2.Rd5#
- 2.Rf5#
- 1...Sb4
- 2.Re4#
- 2.Rf5#
- 1...Sc5
- 2.Rd5#
- 2.Rf5#
- 1...c6
- 2.Re4#
- 2.Rf5#
- 1...Sxf4!
- threat
- 1.Re6+?
- 1...Kf5
- 2.Sg7#
- 2.Rd5#
- 1...Sxe6!
- 1...Kf5
- 1.Qh2?
- threat
- 2.Sxd3#
- 2.Sg6#
- 1...Sg6+
- 2.Sxg6#
- 1...Sxf4
- 2.Qxf4#
- 1...Sc1
- 2.Sd3#
- 2.Sg6#
- 1...Se1
- 2.Sd3#
- 2.Sg6#
- 1...Sb2
- 2.Sd3#
- 2.Sg6#
- 1...Sf2
- 2.Sd3#
- 2.Sg6#
- 1...Sb4
- 2.Sd3#
- 2.Sg6#
- 1...Sc5
- 2.Sd3#
- 2.Sg6#
- 1...g3!
- threat
- 1.Qc4?
- threat
- 2.Re4#
- 2.Rd5#
- 2.Qd5#
- 1...Sg6+
- 2.Sxg6#
- 1...Sxf4
- 2.exf4#
- 1...R3b5
- 2.Re4#
- 1...R7b5
- 2.Re4#
- 1...Sc1
- 2.Rd5#
- 2.Qd5#
- 1...Se1
- 2.Rd5#
- 2.Qd5#
- 1...Sb2
- 2.Rd5#
- 2.Qd5#
- 1...Sf2
- 2.Rd5#
- 2.Qd5#
- 1...Sc5
- 2.Rd5#
- 2.Qd5#
- 1...c6
- 2.Re4#
- 1...Sb4!
- threat
- 1.Qxc7+?
- 1...Bd6
- 2.Qxd6#
- 1...Rxc7!
- 1...Bd6
- 1.Be6?
- Keys
- 1.Bd5!
- threat
- 2.Re4#
- 1...Sg6+
- 2.Sxg6#
- 1...Sxf4
- 2.Rf5#
- 1...R3b4
- 2.Sxd3#
- 1...R7b4
- 2.Qxc7#
- 1...Sf2
- 2.Rf5#
- 1...Sc5
- 2.Rf5#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(c);N_GUARD::S(D),XS(d)
- R(g);N_GUARD,S_CUTB(b)::QAB(A),XP(h)
- S(i);N_GUARD::S(D)
- S(i);CHECK,N_GUARD::S(D),XS(i)
- Tries
- Try
- B(G);
- Threat
- R1(F)
- Vars
- S(i);CHECK,N_GUARD::S(D),XS(i)
- S(d);XS(D)::R1(C)
- S(i);N_GUARD,XB(G)::S(D)
- Refutation
- B(b);P_PINR(F)
- Try
- B(G);
- Threat
- DUALS(3)
- Vars
- S(i);CHECK,XB(G)::S(D),XS(i)
- Refutation
- S(d);XS(D)
- Try
- R(F);CHECK
- Refutation
- S(i);XR(F)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(i);CHECK::QAB(A)+S(D),DCHECK,XS(i)
- S(d);OGATE,P_SPINS(d),XS(D)::QAB1(A),XS(d)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(i);CHECK,N_GUARD::S(D),XS(i)
- S(d);OGATE,XS(D)::P(B),XS(d)
- R(c);::R1(C)
- R(g);::R1(C)
- P(h);::R1(C)
- Refutation
- S(d);
- Try
- Q(A);CHECK,XP(h)
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(A),XB(b)
- Refutation
- R(g);XQ(A)
- Try
- Actual
- B(G);
- Threat
- R1(C)
- Vars
- S(i);CHECK,N_GUARD::S(D),XS(i)
- S(d);XS(D)::R1(F)
- R(c);N_GUARD::S(D),XS(d)
- R(g);N_GUARD,S_CUTB(b)::QAB(A),XP(h)
- S(d);::R1(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).