MESON Chess Problem Database
Problem Display
PID: 176610 (1B6/1PPN3R/p2k1P2/8/K2N1P1n/8/2R3r1/7B w - - 0 1)
Erokhin, Vladimir Alekseevich
Schach-Echo, 1978
#2
11 + 4
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rxc2
- 2.c8S#
- 1...Rd2
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Re2
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rf2
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rh2
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg3
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg4
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg5
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg6
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg7
- 2.c8Q#
- 2.c8B#
- 1...Rg8
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg1
- Tries
- 1.Sb6?
- threat
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg1
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rd2
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Re2
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rf2
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rh2
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg3
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg4
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg5
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg6
- 2.Sc8#
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg7
- 2.Rc6#
- 2.c8S#
- 1...Rg8
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sf3
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sf5
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sg6
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...a5
- 2.Rc6#
- 2.Rd7#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rxc2!
- threat
- 1.Rc5?
- threat
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg7
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Sf3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg1
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rb2
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rc2
- 2.Rd5#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rd2
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Re2
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rf2
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rh2
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg3
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg4
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg5
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg6
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Rg8
- 2.Rd5#
- 2.Rc6#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sf5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Sg6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...a5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Ra2+!
- threat
- 1.Rh5?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Kxd7
- 2.c8Q#
- 1...Rxc2
- 2.Rd5#
- 1...Sf3
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rd2
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Re2
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rf2
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rh2
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rg3
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rg4
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Rg6
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rg7
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Rg8
- 2.Rd5#
- 2.c8Q#
- 2.c8B#
- 1...Sg6
- 2.c8Q#
- 2.c8B#
- 1...a5
- 2.c8Q#
- 2.c8B#
- 1...Sf5!
- threat
- 1.Sb6?
- Keys
- 1.Sc5!
- threat
- 2.Rd7#
- 1...Kd5
- 2.Rd7#
- 1...Rxc2
- 2.c8Q#
- 2.c8R#
- 1...Rg7
- 2.c8S#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);XR(B)::P=S
- R(a);::P=Q
- Tries
- Try
- S(I);
- Threat
- DUALS(6)
- Refutation
- R(a);XR(B)
- Try
- R(B);
- Threat
- DUALS(4)
- Refutation
- R(a);CHECK
- Try
- R(J);
- Threat
- P=Q
- Vars
- K(d);P-FLIGHT,XS(I)::P=Q
- R(a);XR(B)::R1(J)
- S(b);::P=Q
- R(a);::P=Q
- P(c);::P=Q
- Refutation
- S(b);
- Try
- Actual
- S(I);
- Threat
- R1(J)
- Vars
- K(d);P-FLIGHT,P_SPINR(a)::R(J)
- R(a);XR(B)::P=Q
- R(a);::P=S
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).