MESON Chess Problem Database
Problem Display
PID: 244109 (B7/1npr1Np1/5p2/2R5/1B1k1pr1/5Qp1/1nK3N1/8 w - - 0 1)
Belchikov, Nikolai Ivanovich
Hlas l'udu, 1988
(First published on Thu Aug 25 1988)
#2
7 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rg5
- 2.Qxf4#
- 1...Rg6
- 2.Qxf4#
- 1...Rd5
- 2.Qxd5#
- 1...Re7
- 2.Qd5#
- 1...Rxf7
- 2.Qd5#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sa5
- 2.Qe4#
- 2.Qc3#
- 1...Sxc5
- 2.Qc3#
- 1...Sd6
- 2.Qd5#
- 2.Qc3#
- 1...Sd8
- 2.Qe4#
- 2.Qc3#
- 1...Rg5
- Tries
- 1.Se3?
- threat
- 2.Sf5#
- 1...Sxc5
- 2.Bc3#
- 1...fxe3
- 2.Qxg4#
- 1...Rg5
- 2.Qxf4#
- 1...Rd5
- 2.Rxd5#
- 1...Sd6
- 2.Rd5#
- 1...f5
- 2.Sxf5#
- 1...g6!
- threat
- 1.Sxf4?
- threat
- 2.Se2#
- 2.Se6#
- 1...Rxf4
- 2.Qxf4#
- 1...Sxc5
- 2.Qc3#
- 1...Rd6
- 2.Se2#
- 1...Sd8
- 2.Se2#
- 2.Qe4#
- 2.Qc3#
- 1...Re7!
- threat
- 1.Sg5?
- threat
- 2.Se6#
- 2.Qe4#
- 2.Qc3#
- 1...Rxg5
- 2.Qxf4#
- 1...Sxc5
- 2.Qc3#
- 1...Rd5
- 2.Qe4#
- 2.Qxd5#
- 2.Qc3#
- 1...Rd6
- 2.Qe4#
- 2.Qc3#
- 1...Re7
- 2.Qd5#
- 2.Qc3#
- 1...Sd1
- 2.Se6#
- 2.Qxd1#
- 2.Qe4#
- 2.Qd3#
- 1...Sd3
- 2.Se6#
- 2.Qe4#
- 2.Qxd3#
- 1...Sa4
- 2.Se6#
- 2.Qd1#
- 2.Qe4#
- 2.Qd3#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 2.Qc3#
- 1...Sd8
- 2.Qe4#
- 2.Qc3#
- 1...f5
- 2.Se6#
- 2.Qc3#
- 1...fxg5!
- threat
- 1.Sd6?
- threat
- 2.Sb5#
- 2.Sf5#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 1...Sxc5
- 2.Bc3#
- 2.Qd5#
- 2.Qc3#
- 1...Sxd6
- 2.Qd5#
- 2.Qc3#
- 1...cxd6
- 2.Qd5#
- 1...Rg5
- 2.Sb5#
- 2.Qe4#
- 2.Qc3#
- 2.Qxf4#
- 1...Re7
- 2.Sb5#
- 2.Sf5#
- 2.Rd5#
- 2.Qd5#
- 2.Qc3#
- 1...Sd1
- 2.Sb5#
- 2.Sf5#
- 2.Rd5#
- 2.Qxd1#
- 2.Qe4#
- 2.Qd5#
- 2.Qd3#
- 1...Sd3
- 2.Sb5#
- 2.Sf5#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 2.Qxd3#
- 1...Sa4
- 2.Sb5#
- 2.Sf5#
- 2.Rd5#
- 2.Qd1#
- 2.Qe4#
- 2.Qd5#
- 2.Qd3#
- 1...f5
- 2.Sb5#
- 2.Sxf5#
- 2.Rd5#
- 2.Qd5#
- 2.Qc3#
- 1...c6
- 2.Sf5#
- 2.Qe4#
- 2.Qc3#
- 1...g6
- 2.Sb5#
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 1...Rxd6!
- threat
- 1.Bxb7?
- threat
- 2.Qe4#
- 2.Qc3#
- 1...Rd5
- 2.Qxd5#
- 1...Re7
- 2.Qd5#
- 2.Qc3#
- 1...Sd1
- 2.Qxd1#
- 2.Qe4#
- 2.Qd3#
- 1...Sd3
- 2.Qe4#
- 2.Qxd3#
- 1...Sa4
- 2.Qd1#
- 2.Qe4#
- 2.Qd3#
- 1...f5
- 2.Qc3#
- 1...c6!
- threat
- 1.Rc4+?
- 1...Sxc4
- 2.Qd3#
- 1...Kxc4!
- 1...Sxc4
- 1.Rd5+?
- 1...Kc4
- 2.Qe4#
- 2.Qb3#
- 1...Rxd5!
- 1...Kc4
- 1.Re5?
- threat
- 2.Qe4#
- 2.Qc3#
- 1...Kc4
- 2.Qc3#
- 1...Sd1
- 2.Qe4#
- 2.Qd3#
- 1...Sd3
- 2.Qe4#
- 2.Qxd3#
- 1...Sa4
- 2.Qe4#
- 2.Qd3#
- 1...Sc5
- 2.Qc3#
- 1...Sd6
- 2.Qd5#
- 2.Qc3#
- 1...f5
- 2.Qc3#
- 1...fxe5!
- threat
- 1.Rc6?
- threat
- 2.Bc3#
- 1...Sd1
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc5!
- threat
- 1.Rxc7?
- threat
- 2.Bc3#
- 1...Sc5
- 2.Qc3#
- 1...Sd1
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Rxc7+!
- threat
- 1.Se3?
- Keys
- 1.Qc6!
- threat
- 2.Bc3#
- 1...Sxc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(e);N_GUARD::QAR2(C),XP(d)
- R(i);N_GUARD::QAR1(C),XR(i)
- R(i);N_GUARD::QAR1(C)
- R(i);N_GUARD,XS(F)::QAR1(C)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(g);XR(E)::QAB1(C)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(g);SBLOCK,XR(E)::B(D)
- P(d);OGATEB,SBLOCK,XS(B)::QAR(C),XR(e)
- R(e);N_GUARD::QAR2(C),XP(d)
- R(i);N_GUARD::R1(E),XR(i)
- S(g);S_CUTR(i)::R1(E)
- P(f);::S(B),XP(f)
- Refutation
- P(j);
- Try
- S(B);XP(d)
- Threat
- DUALS(2)
- Vars
- R(e);OGATE,XS(B)::QAR2(C),XR(e)
- S(g);XR(E)::QAB1(C)
- R(i);::S(B)
- Refutation
- R(i);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- R(e);N_GUARD,XS(F)::QAR2(C),XP(d)
- S(g);XR(E)::QAB1(C)
- Refutation
- P(f);XS(F)
- Try
- S(F);
- Threat
- DUALS(6)
- Vars
- P(h);XS(F)::QAR1(C)
- Refutation
- R(i);XS(F)
- Try
- B(G);XS(g)
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD::QAR1(C),XR(i)
- P(f);::QAB1(C)
- Refutation
- P(h);
- Try
- R(E);CHECK
- Vars
- S(a);XR(E)::QAR1(C)
- Refutation
- K(c);P-FLIGHT,XR(E)
- Try
- R(E);CHECK
- Refutation
- R(i);XR(E)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::QAR1(C)
- S(g);::QAB1(C)
- P(f);::QAB1(C)
- Refutation
- P(f);XR(E)
- Try
- R(E);
- Threat
- B(D)
- Vars
- S(a);N_GUARD::QAR1(C)
- Refutation
- S(g);
- Try
- R(E);XP(h)
- Threat
- B(D)
- Vars
- S(g);::QAB1(C)
- S(a);N_GUARD::QAR1(C)
- Refutation
- R(i);CHECK,XR(E)
- Try
- Actual
- Q(C);
- Threat
- B(D)
- Vars
- S(g);OGATE,XR(E)::QAB1(C),XS(g)
- R(i);N_GUARD::QAR1(C),XR(i)
- S(a);N_GUARD::R1(E)
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).