MESON Chess Problem Database
Problem Display
PID: 166548 (3Q4/b3PN1K/r5R1/4N2p/2p2k1p/rR5P/2B1pB1n/1n6 w - - 0 1)
Rukhlis, Efim Naumovich
Prize, Shakhmatna misl, 1963
#2
10 + 10
| 230 | Sachove umeni (Ceskoslovensky sach) | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Rf6#
- 1...Ra5
- 2.Rf6#
- 1...Rb6
- 2.Be3#
- 2.Qd4#
- 1...Rf6
- 2.Rxf6#
- 1...Rxg6
- 2.Sxg6#
- 1...Be3
- 2.Bxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Bb6
- 2.Rf6#
- 1...Bb8
- 2.Be3#
- 2.Qd4#
- 1...Ra4
- Tries
- 1.Bb6?
- threat
- 2.Rf6#
- 2.Qd4#
- 1...Rxb3
- 2.Qd4#
- 1...Rxb6
- 2.Qd4#
- 1...Bxb6
- 2.Rf6#
- 1...cxb3
- 2.Qd4#
- 1...e1Q
- 2.Rf6#
- 1...e1R
- 2.Rf6#
- 1...Sd2
- 2.Rf6#
- 2.Qxd2#
- 1...Sc3
- 2.Qd2#
- 1...Sg4
- 2.Qd4#
- 1...c3
- 2.Rb4#
- 2.Qd4#
- 1...Sf3!
- threat
- 1.Rbb6?
- threat
- 2.Rgf6#
- 2.Qd4#
- 1...Rxb6
- 2.Qd4#
- 1...Bxb6
- 2.Rf6#
- 1...e1Q
- 2.Rgf6#
- 1...e1R
- 2.Rgf6#
- 1...Re3
- 2.Rgf6#
- 1...Sd2
- 2.Rgf6#
- 1...Sc3
- 2.Rgf6#
- 2.Qd2#
- 1...Sf3
- 2.Rgf6#
- 1...Sg4
- 2.Qd4#
- 1...Rd3!
- threat
- 1.Rxa6?
- threat
- 2.Sg6#
- 2.Rf6#
- 1...Rxb3
- 2.Rf6#
- 1...cxb3
- 2.Rf6#
- 1...Be3
- 2.Rf6#
- 1...Bb6
- 2.Sg6#
- 1...Sc3
- 2.Rf6#
- 1...Sg4
- 2.Sg6#
- 1...c3
- 2.Rf6#
- 1...Rxa6!
- threat
- 1.Qb6?
- threat
- 2.Be3#
- 2.Rf6#
- 1...Rxb3
- 2.Rf6#
- 1...Rxb6
- 2.Be3#
- 1...Bxb6
- 2.Rf6#
- 1...e1Q
- 2.Rf6#
- 1...e1R
- 2.Rf6#
- 1...Sf1
- 2.Rf6#
- 1...Sg4!
- threat
- 1.Qd2+?
- 1...Be3
- 2.Bxe3#
- 2.Qxe3#
- 1...Sxd2!
- 1...Be3
- 1.Qd3?
- threat
- 2.Qe4#
- 2.Qf5#
- 1...e1Q
- 2.Qf5#
- 1...e1R
- 2.Qf5#
- 1...Rf6
- 2.Rxf6#
- 2.Qe4#
- 1...Sd2
- 2.Qf5#
- 1...Sc3
- 2.Qf5#
- 1...cxd3!
- threat
- 1.Qd7?
- threat
- 2.Qf5#
- 1...Rf6
- 2.Rxf6#
- 1...Re6!
- threat
- 1.Qc8?
- threat
- 2.Qf5#
- 1...Rf6
- 2.Rxf6#
- 1...Re6!
- threat
- 1.e8Q?
- threat
- 2.Qg5#
- 1...Rxg6
- 2.Sxg6#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Sf3!
- threat
- 1.e8S?
- threat
- 2.Qg5#
- 1...Rxg6
- 2.Sxg6#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Sf3!
- threat
- 1.e8B?
- threat
- 2.Qg5#
- 1...Rxg6
- 2.Sxg6#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Sf3!
- threat
- 1.e8R?
- threat
- 2.Qg5#
- 1...Rxg6
- 2.Sxg6#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Sf3!
- threat
- 1.Bb6?
- Keys
- 1.Rgb6!
- threat
- 2.Sg6#
- 2.Qd4#
- 1...Rxb3
- 2.Qd4#
- 1...Rxb6
- 2.Qd4#
- 1...Bxb6
- 2.Sg6#
- 1...cxb3
- 2.Qd4#
- 1...e1Q
- 2.Sg6#
- 1...e1R
- 2.Sg6#
- 1...Sd2
- 2.Sg6#
- 2.Qxd2#
- 1...Sc3
- 2.Qd2#
- 1...Sf3
- 2.Sg6#
- 1...c3
- 2.R3b4#
- 2.Qd4#
- threat
- 1.Rgb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 6
- Sets
- R(i);N_GUARD::R(F)
- R(i);N_GUARD::R(F),XR(i)
- R(i);XR(F)::S(E),XR(i)
- B(j);N_GUARD::B(B),XB(j)
- B(j);N_GUARD::QAR2(J),XB(j)
- B(j);S_CUTR(i)::R(F)
- Tries
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(d);XR(C)::QAR2(J)
- R(i);XB(B)::QAR2(J)
- B(j);XB(B)::R(F)
- P(e);XR(C)::QAR2(J)
- P(b);::R(F)
- S(a);N_GUARD::QAB(J)
- S(c);::QAR2(J)
- Refutation
- S(c);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(i);XR(C)::QAR2(J)
- B(j);XR(C)::R(F)
- P(b);::R(F)
- R(d);::R(F)
- S(a);::R(F)
- S(c);::R(F)
- S(c);::QAR2(J)
- Refutation
- R(d);
- Try
- R(F);XR(i)
- Threat
- DUALS(2)
- Vars
- R(d);XR(C)::R(F)
- P(e);XR(C)::R(F)
- B(j);::R(F)
- B(j);::S(E)
- S(a);::R(F)
- S(c);::S(E)
- P(e);::R(F)
- Refutation
- R(d);XR(F)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(d);XR(C)::R(F)
- R(i);XQ(J)::B(B)
- B(j);XQ(J)::R(F)
- P(b);::R(F)
- S(c);::R(F)
- Refutation
- S(c);
- Try
- Q(J);CHECK
- Refutation
- S(a);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR1(J)
- S(a);::QAR1(J)
- Refutation
- P(e);XQ(J)
- Try
- Q(J);
- Threat
- QAR1(J)
- Vars
- R(i);N_GUARD::R(F),XR(i)
- Refutation
- R(i);
- Try
- Q(J);
- Threat
- QAR1(J)
- Vars
- R(i);N_GUARD::R(F),XR(i)
- Refutation
- R(i);
- Try
- P(G);
- Threat
- QAB1(J)
- Vars
- R(i);XR(F)::S(E),XR(i)
- Refutation
- S(c);
- Try
- P(G);
- Threat
- QAB1(J)
- Vars
- R(i);XR(F)::S(E),XR(i)
- Refutation
- S(c);
- Try
- P(G);
- Threat
- QAB1(J)
- Vars
- R(i);XR(F)::S(E),XR(i)
- Refutation
- S(c);
- Try
- P(G);
- Threat
- QAB1(J)
- Vars
- R(i);XR(F)::S(E),XR(i)
- Refutation
- S(c);
- Try
- Actual
- R(F);
- Threat
- DUALS(2)
- Vars
- R(d);XR(C)::QAR2(J)
- R(i);XR(F)::QAR2(J)
- B(j);XR(F)::S(E)
- P(e);XR(C)::QAR2(J)
- P(b);::S(E)
- S(a);N_GUARD::QAB(J)
- S(c);::S(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).