MESON Chess Problem Database
Problem Display
PID: 240488 (2R1R2K/b7/3p4/B2N1p2/n1pk2p1/1bN5/1qp1P1pQ/5r2 w - - 0 1)
Pilchenko, Viacheslav Karlovich
Hlas l'udu, 1983
#2
8 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rd1
- 2.Qf4#
- 1...Re1
- 2.Qf4#
- 1...Rg1
- 2.Qxg1#
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...f4
- 2.Re4#
- 1...Ra1
- Tries
- 1.Se3?
- threat
- 2.Sb5#
- 2.Qxd6#
- 1...Qxc3
- 2.Qxd6#
- 1...Qa3
- 2.Sb5#
- 1...Rh1
- 2.Sb5#
- 2.Sxf5#
- 1...Rf4
- 2.Sb5#
- 2.Qxf4#
- 1...Ba2
- 2.Qxd6#
- 1...Bc5
- 2.Sb5#
- 1...Bb8
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...g3
- 2.Sb5#
- 1...f4
- 2.Sb5#
- 2.Sf5#
- 2.Re4#
- 1...d5
- 2.Sb5#
- 2.Qe5#
- 1...Sxc3!
- threat
- 1.Sf4?
- threat
- 2.Sb5#
- 2.e3#
- 1...Rxf4
- 2.Qxf4#
- 1...Sxc3
- 2.e3#
- 1...c1Q
- 2.Sb5#
- 1...c1B
- 2.Sb5#
- 1...g1Q
- 2.Sb5#
- 1...g1B
- 2.Sb5#
- 1...Qc1
- 2.Sb5#
- 1...Re1
- 2.Sb5#
- 1...Rf3
- 2.Sb5#
- 1...Ba2
- 2.e3#
- 1...Qxc3!
- threat
- 1.Sf6?
- threat
- 2.Sb5#
- 2.Qxd6#
- 1...Qxc3
- 2.Qxd6#
- 1...Qa3
- 2.Sb5#
- 1...Rh1
- 2.Sb5#
- 1...Rf4
- 2.Sb5#
- 2.Qxf4#
- 1...Ba2
- 2.Qxd6#
- 1...Bc5
- 2.Sb5#
- 1...Bb8
- 2.Sb5#
- 1...Sb6
- 2.Sb5#
- 1...g3
- 2.Sb5#
- 1...f4
- 2.Sb5#
- 2.Re4#
- 1...d5
- 2.Sb5#
- 2.Qe5#
- 1...Sxc3!
- threat
- 1.Sc7?
- threat
- 2.S7b5#
- 2.Qxd6#
- 1...Kc5
- 2.Sb5#
- 2.Se6#
- 1...Qxc3
- 2.Qxd6#
- 1...Qa3
- 2.S7b5#
- 1...Rh1
- 2.S7b5#
- 1...Rf4
- 2.S7b5#
- 1...Ba2
- 2.Qxd6#
- 1...Bc5
- 2.S3b5#
- 2.S7b5#
- 1...Sb6
- 2.S7b5#
- 1...g3
- 2.S7b5#
- 1...f4
- 2.S7b5#
- 1...d5
- 2.S7b5#
- 1...Sxc3!
- threat
- 1.Qg1+?
- 1...Rf2
- 2.Qxf2#
- 1...Rxg1!
- 1...Rf2
- 1.Qxd6?
- threat
- 2.Sb5#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Qe5#
- 2.Qf6#
- 1...Qxc3
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Qe5#
- 1...Sxc3
- 2.Sxc3#
- 2.Qe5#
- 1...Qa3
- 2.Sb5#
- 2.Qe5#
- 2.Qf6#
- 1...Rf4
- 2.Sb5#
- 2.Se3#
- 2.Sxf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Qxf4#
- 2.Qe5#
- 2.Qf6#
- 1...Ba2
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Qe5#
- 2.Qf6#
- 1...Bc5
- 2.Sb5#
- 2.Qe5#
- 2.Qf6#
- 1...Bb6
- 2.Sb5#
- 2.Se3#
- 2.Sf4#
- 2.Sxb6#
- 2.Sf6#
- 2.Sc7#
- 2.Qe5#
- 2.Qf6#
- 1...Bb8
- 2.Sb5#
- 2.Sc7#
- 1...Sb6
- 2.Sb5#
- 2.Sxb6#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...f4
- 2.Sb5#
- 2.Se3#
- 2.Sxf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Re4#
- 2.Qe5#
- 2.Qf6#
- 1...Rh1+!
- threat
- 1.Se3?
- Keys
- 1.Sb4!
- threat
- 2.Sb5#
- 1...Kxc3
- 2.Sc6#
- 1...Qxc3
- 2.Qxd6#
- 1...Sxc3
- 2.e3#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::QAR2(B)
- R(a);N_GUARD::QAR2(B),XR(a)
- P(j);N_GUARD::R1(G)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(C)::QAR2(B),XP(k)
- Q(b);::S(C)
- B(e);::QAR2(B),XP(k)
- B(l);::S(C)
- S(f);::S(C)
- P(i);::S(C)
- Refutation
- S(f);XS(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,XS(E)::QAR2(B),XR(a)
- S(f);XS(C)::P(A)
- P(c);::S(C)
- P(d);::S(C)
- Q(b);::S(C)
- R(a);::S(C)
- B(e);::P(A)
- Refutation
- Q(b);XS(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(C)::QAR2(B),XP(k)
- Q(b);::S(C)
- R(a);P_PINQ(B)::S(C)
- B(e);::QAR2(B),XP(k)
- B(l);::S(C)
- S(f);::S(C)
- P(i);::S(C)
- Refutation
- S(f);XS(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(C)::QAR2(B),XP(k)
- Q(b);::S(E)
- R(a);P_PINQ(B)::S(E)
- R(a);::S(E)
- B(e);::QAR2(B),XP(k)
- S(f);::S(E)
- P(i);::S(E)
- P(j);::S(E)
- P(k);::S(E)
- Refutation
- S(f);XS(C)
- Try
- Q(B);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB(B),XR(a)
- Refutation
- R(a);XQ(B)
- Try
- Q(B);XP(k)
- Threat
- DUALS(8)
- Refutation
- R(a);CHECK
- Try
- Actual
- S(E);
- Threat
- S(C)
- Vars
- K(h);P_SPINP(g),S_FLIGHT,XS(C)::B(D)+S(E)
- Q(b);SBLOCK,XS(C)::QAR2(B),XP(k)
- S(f);SBLOCK,XS(C)::P(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).