MESON Chess Problem Database
Problem Display
PID: 63832 (4KR2/2p1N3/p1r3rB/4b2B/4k3/3NP2R/n1P3qp/1Q6 w - - 0 1)
Melnichenko, Viktor Oleksandrovich
1st Prize, Shakhmaty v SSSR, 1979
#2
10 + 9
| 3750 | FIDE Album (1977-1979) | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Sf2#
- 1...Qf3
- 2.Bxf3#
- 1...Qxh3
- 2.Sf2#
- 1...Qg1
- 2.Bf3#
- 1...Qxc2
- 2.Sf2#
- 1...Qd2
- 2.Bf3#
- 1...Qf2
- 2.Sxf2#
- 1...Qg4
- 2.Sf2#
- 1...Qg5
- 2.Sf2#
- 1...Rxc2
- 2.Sc5#
- 1...Rc5
- 2.Sxc5#
- 1...Rb6
- 2.Sc5#
- 1...Rcd6
- 2.Sc5#
- 1...Rce6
- 2.Sc5#
- 1...Rcf6
- 2.Sc5#
- 1...Ba1
- 2.Rf4#
- 1...Bb2
- 2.Rf4#
- 1...Bc3
- 2.Rf4#
- 1...Bd4
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bg7
- 2.Rf4#
- 1...Bh8
- 2.Rf4#
- 1...Qh1
- Tries
- 1.Bxg6+?
- 1...Rxg6
- 2.Sc5#
- 1...Qxg6+!
- 1...Rxg6
- 1.Qh1?
- threat
- 2.Sf2#
- 1...Rxc2
- 2.Bxg6#
- 1...Rcf6
- 2.Sc5#
- 1...Ba1
- 2.Rf4#
- 1...Bb2
- 2.Rf4#
- 1...Bc3
- 2.Rf4#
- 1...Bg3
- 2.Qxg2#
- 1...Bd4
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bd6
- 2.Bxg6#
- 1...Bf6
- 2.Bxg6#
- 1...Bg7
- 2.Rf4#
- 1...Bh8
- 2.Rf4#
- 1...Rgf6!
- threat
- 1.Qb4+?
- 1...Rc4
- 2.Sc5#
- 1...Bd4
- 2.Rf4#
- 2.Qxd4#
- 1...Sxb4!
- 1...Rc4
- 1.Qb5?
- threat
- 2.Qd5#
- 2.Qxe5#
- 1...Qxc2
- 2.Bf3#
- 2.Qd5#
- 1...Rxc2
- 2.Qd5#
- 1...Qg3
- 2.Qd5#
- 1...Qg5
- 2.Sf2#
- 2.Qd5#
- 1...Rc5
- 2.Sxc5#
- 1...Rcd6
- 2.Sc5#
- 2.Qxe5#
- 1...Rce6
- 2.Sc5#
- 2.Qd5#
- 1...Rg5
- 2.Qxc6#
- 2.Qd5#
- 1...Rgd6
- 2.Qxe5#
- 1...Rge6
- 2.Qd5#
- 1...Ba1
- 2.Rf4#
- 2.Qd5#
- 2.Qf5#
- 1...Bb2
- 2.Rf4#
- 2.Qd5#
- 2.Qf5#
- 1...Bc3
- 2.Rf4#
- 2.Qd5#
- 2.Qf5#
- 1...Bg3
- 2.Qd5#
- 2.Qf5#
- 1...Bd4
- 2.Rf4#
- 2.Qd5#
- 2.Qf5#
- 1...Bf4
- 2.Rxf4#
- 2.Qd5#
- 2.Qf5#
- 1...Bd6
- 2.Qxc6#
- 2.Qd5#
- 2.Qf5#
- 1...Bf6
- 2.Qxc6#
- 2.Qd5#
- 2.Qf5#
- 1...Bg7
- 2.Rf4#
- 2.Qd5#
- 2.Qf5#
- 1...Bh8
- 2.Rf4#
- 2.Qd5#
- 2.Qf5#
- 1...Sc3
- 2.Qxe5#
- 1...Sb4
- 2.Qxe5#
- 1...axb5!
- threat
- 1.Bxg6+?
- Keys
- 1.Qb7!
- threat
- 2.Sc5#
- 1...Qxc2
- 2.Bxg6#
- 1...Ba1
- 2.Rf4#
- 1...Bb2
- 2.Rf4#
- 1...Bc3
- 2.Rf4#
- 1...Bg3
- 2.Bxg6#
- 1...Bd4
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bd6
- 2.Qxc6#
- 1...Bf6
- 2.Qxc6#
- 1...Bg7
- 2.Rf4#
- 1...Bh8
- 2.Rf4#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 14
- Sets
- Q(b);N_GUARD::S(C)
- Q(b);N_GUARD::B(F),XQ(b)
- Q(b);N_GUARD,XR(E)::S(C)
- Q(b);N_GUARD::B(F)
- Q(b);N_GUARD,XP(B)::S(C)
- Q(b);N_GUARD::S(C),XQ(b)
- R(g);N_GUARD,XP(B)::S(C)
- R(g);N_GUARD::S(C),XR(g)
- R(g);N_GUARD::S(C)
- R(g);N_GUARD,P_PINS(H)::S(C)
- B(e);N_GUARD::R1(J)
- B(e);N_GUARD::R1(J),XB(e)
- Tries
- Try
- B(F);CHECK,XR(h)
- Vars
- R(g);XB(F)::S(C)
- Refutation
- Q(b);CHECK,XB(F)
- Try
- Q(A);P_PINQ(b)
- Threat
- S(C)
- Vars
- R(g);N_GUARD,XP(B)::B(F),XR(h)
- R(g);N_GUARD::S(C)
- B(e);N_GUARD::R1(J)
- B(e);S_CUTR(h)::QAB(A),XQ(b)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);S_CUTR(g)::B(F),XR(h)
- Refutation
- R(h);
- Try
- Q(A);CHECK
- Vars
- R(g);P_SPINR(g)::S(C)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(g);XP(B)::QAB1(A)
- Q(b);::QAB1(A)
- R(g);N_GUARD::S(C),XR(g)
- R(h);::QAR1(A),XB(e)
- R(h);P_PINS(H)::QAB1(A)
- S(a);::QAR1(A),XB(e)
- Refutation
- P(f);XQ(A)
- Try
- Actual
- Q(A);P_PINR(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(B)::B(F),XR(h)
- B(e);N_GUARD::R1(J)
- B(e);S_CUTQ(b)::B(F),XR(h)
- B(e);N_GUARD::R1(J),XB(e)
- B(e);S_CUTR(h)::QAB(A),XR(g)
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).