MESON Chess Problem Database
Problem Display
PID: 188325 (bqR5/3R4/2P2nn1/P1k2N2/Pp5r/1P2PB2/2K1Q3/4B3 w - - 0 1)
Lukyanov, Valentin Volodimirovich
1st Prize, Hlas l'udu, 1990
#2
12 + 7
| 702 | Phenix | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Qb5#
- 1...Qf4
- 2.Qb5#
- 1...Qe5
- 2.Qb5#
- 1...Qd6
- 2.Qb5#
- 1...Qa7
- 2.Qb5#
- 1...Qc7
- 2.Qb5#
- 1...Qb5
- 2.Qxb5#
- 1...Qb7
- 2.cxb7#
- 1...Qxc8
- 2.Qb5#
- 1...Rh1
- 2.Qc4#
- 1...Rh3
- 2.Qc4#
- 1...Rc4+
- 2.Qxc4#
- 1...Rd4
- 2.exd4#
- 1...Rh5
- 2.Qc4#
- 1...Rh6
- 2.Qc4#
- 1...Rh7
- 2.Qc4#
- 1...Rh8
- 2.Qc4#
- 1...Bxc6
- 2.Rxc6#
- 1...Bb7
- 2.Qb5#
- 1...Se4
- 2.Qc4#
- 1...Sg4
- 2.Rd5#
- 2.Qc4#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Sf4
- 2.Qc4#
- 1...Qg3
- Tries
- 1.Sd4?
- threat
- 2.Se6#
- 2.Qc4#
- 1...Rxd4
- 2.exd4#
- 1...Qh2
- 2.Se6#
- 1...Qe5
- 2.Qc4#
- 2.Qb5#
- 1...Qd6
- 2.Qc4#
- 2.Qb5#
- 1...Qb5
- 2.Se6#
- 2.Qxb5#
- 1...Rh2
- 2.Se6#
- 1...Re4
- 2.Qc4#
- 1...Sf4
- 2.Qc4#
- 1...Se5
- 2.Se6#
- 1...Sf8
- 2.Qc4#
- 1...Sxd7!
- threat
- 1.Bf2?
- threat
- 2.e4#
- 1...Rc4+
- 2.Qxc4#
- 1...Qxc8
- 2.Qb5#
- 1...Qh2
- 2.Qb5#
- 1...Qg3
- 2.Qb5#
- 1...Qf4
- 2.Qb5#
- 2.exf4#
- 1...Qe5
- 2.Qb5#
- 1...Qd6
- 2.Qb5#
- 1...Qc7
- 2.Qb5#
- 1...Rh2
- 2.Qc4#
- 1...Rd4
- 2.exd4#
- 1...Se4
- 2.Qc4#
- 1...Sg4
- 2.Rd5#
- 2.Qc4#
- 1...Sd5
- 2.Rxd5#
- 1...Re4!
- threat
- 1.Rd4?
- threat
- 2.Qc4#
- 1...Rxd4
- 2.exd4#
- 1...Qh2
- 2.Bxb4#
- 1...Qb5
- 2.Qxb5#
- 1...Rh2
- 2.Rc4#
- 1...Se5!
- threat
- 1.Rxb8?
- threat
- 2.Rb5#
- 2.Qb5#
- 1...Rc4+
- 2.Qxc4#
- 1...Re4
- 2.Qb5#
- 1...Se4
- 2.Qc4#
- 2.Qb5#
- 1...Sd5
- 2.Qb5#
- 1...Rh2
- 2.Bxb4#
- 2.Rb5#
- 1...Bb7
- 2.Qb5#
- 1...Bxc6!
- threat
- 1.Sd4?
- Keys
- 1.Rb7!
- threat
- 2.Qb5#
- 1...Rc4+
- 2.Qxc4#
- 1...Qxb7
- 2.cxb7#
- 1...Qh2
- 2.Rb5#
- 1...Rh2
- 2.Bxb4#
- threat
- 1.Rb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 24
- Sets
- Q(g);N_GUARD::QAR1(C)
- Q(g);N_GUARD::QAR1(C),XQ(g)
- Q(g);OGATE::R(L)+P(J),XQ(g)
- Q(g);N_GUARD,XR(L)::QAR1(C)
- R(b);N_GUARD::QAR1(C)
- R(b);CHECK,N_GUARD::QAR1(C),XR(b)
- R(b);OGATE::P(E),XR(b)
- B(f);OGATE,P_SPINB(f),XP(J)::R1(L),XB(f)
- B(f);S_CUTQ(g)::QAR1(C)
- S(d);S_CUTR(b)::QAR1(C)
- S(d);N_GUARD::R1(K),XS(d)
- S(d);N_GUARD::R1(K)
- S(e);S_CUTR(b)::QAR1(C)
- Tries
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,XS(I)::P(E),XR(b)
- Q(g);P_PINQ(C)::S(I)
- R(b);P_PINQ(C)::S(I)
- R(b);::QAR1(C)
- S(e);::QAR1(C)
- S(e);::S(I)
- Refutation
- S(d);XR(K)
- Try
- B(A);
- Threat
- B(A)+P(E)
- Vars
- R(b);CHECK,N_GUARD::QAR1(C),XR(b)
- Q(g);N_GUARD,XR(L)::QAR1(C)
- Q(g);N_GUARD::QAR1(C)
- R(b);N_GUARD::QAR1(C)
- R(b);OGATE::P(E),XR(b)
- S(d);S_CUTR(b)::QAR1(C)
- S(d);N_GUARD::R1(K),XS(d)
- Refutation
- R(b);
- Try
- R(K);
- Threat
- QAR1(C)
- Vars
- R(b);OGATE,XR(K)::P(E),XR(b)
- Q(g);N_GUARD,P_PINQ(C)::B(A),XP(a)
- Q(g);N_GUARD::QAR1(C),XQ(g)
- R(b);N_GUARD,P_PINQ(C)::R1(K)
- Refutation
- S(e);
- Try
- R(L);XQ(g)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,N_GUARD::QAR1(C),XR(b)
- R(b);::QAR1(C)
- S(d);::QAR1(C)
- B(f);::QAR1(C)
- Refutation
- B(f);XP(J)
- Try
- Actual
- R(K);
- Threat
- QAR1(C)
- Vars
- R(b);CHECK,N_GUARD::QAR1(C),XR(b)
- Q(g);OGATE,XR(K)::R(L)+P(J),XQ(g)
- Q(g);N_GUARD,P_PINQ(C)::R1(K)
- R(b);N_GUARD,P_PINQ(C)::B(A),XP(a)
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).