MESON Chess Problem Database
Problem Display
PID: 233826 (8/3PK3/5R2/4k3/3n4/3Q4/8/8 w - - 0 1)
Benko, Pal Charles
Chess Life & Review, 1970
#2
4 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sb3
- 2.Rf5#
- 1...Sf3
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sf5+
- 2.Rxf5#
- 1...Se6
- 2.Rf5#
- 1...Sc2
- Tries
- 1.Kf7?
- 1...Sc2
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sb3
- 2.Rf5#
- 1...Sf3
- 2.Rf5#
- 1...Sb5
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sc6
- 2.Rf5#
- 1...Se6
- 2.Rf5#
- 1...Kd5!
- 1...Sc2
- 1.d8Q?
- threat
- 2.Qe3#
- 2.Q3xd4#
- 2.Q8xd4#
- 2.Qd6#
- 1...Sf5+
- 2.Rxf5#
- 2.Qxf5#
- 1...Sc2
- 2.Rf5#
- 2.Qf5#
- 2.Qa5#
- 2.Qc7#
- 2.Q3d5#
- 2.Q8d5#
- 2.Q8d6#
- 2.Qb8#
- 1...Se2
- 2.Rf5#
- 2.Qxe2#
- 2.Qf5#
- 2.Qa5#
- 2.Qc7#
- 2.Qe3#
- 2.Q3d5#
- 2.Q8d5#
- 2.Q8d6#
- 2.Qb8#
- 1...Sb3
- 2.Rf5#
- 2.Qe2#
- 2.Qf5#
- 2.Qc7#
- 2.Qe3#
- 2.Q3d5#
- 2.Q8d5#
- 2.Q8d6#
- 2.Qb8#
- 1...Sf3
- 2.Rf5#
- 2.Qe2#
- 2.Qf5#
- 2.Qa5#
- 2.Qc7#
- 2.Qe3#
- 2.Q3d5#
- 2.Q8d5#
- 2.Q8d6#
- 2.Qb8#
- 1...Sb5
- 2.Rf5#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 2.Q3d5#
- 2.Q8d5#
- 1...Se6
- 2.Rf5#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 2.Q3d5#
- 2.Q8d5#
- 2.Q8d6#
- 1...Sc6+!
- threat
- 1.d8R?
- threat
- 2.Qe3#
- 2.Qxd4#
- 1...Sf5+
- 2.Rxf5#
- 2.Qxf5#
- 1...Sc2
- 2.Rf5#
- 2.Rd5#
- 2.Qf5#
- 2.Qd5#
- 1...Se2
- 2.Rf5#
- 2.Rd5#
- 2.Qxe2#
- 2.Qf5#
- 2.Qe3#
- 2.Qd5#
- 1...Sb3
- 2.Rf5#
- 2.Rd5#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 2.Qd5#
- 1...Sf3
- 2.Rf5#
- 2.Rd5#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 2.Qd5#
- 1...Sb5
- 2.Rf5#
- 2.Rd5#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 2.Qd5#
- 1...Se6
- 2.Rf5#
- 2.Rd5#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 2.Qd5#
- 1...Sc6+!
- threat
- 1.Kf7?
- Keys
- 1.d8S!
- 1...Sf5+
- 2.Rxf5#
- 1...Sc6+
- 2.Sxc6#
- 1...Kd5
- 2.Rf5#
- 1...Sc2
- 2.Sc6#
- 2.Sf7#
- 2.Rf5#
- 1...Se2
- 2.Sc6#
- 2.Sf7#
- 2.Rf5#
- 1...Sb3
- 2.Sc6#
- 2.Sf7#
- 2.Rf5#
- 1...Sf3
- 2.Sc6#
- 2.Sf7#
- 2.Rf5#
- 1...Sb5
- 2.Sc6#
- 2.Sf7#
- 2.Rf5#
- 1...Se6
- 2.Sc6#
- 2.Sf7#
- 2.Rf5#
- 1...Sf5+
- 1.d8S!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- S(a);N_GUARD::R1(B)
- S(a);CHECK,N_GUARD::R1(B),XS(a)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a)
- Try
- P(C);
- Threat
- DUALS(4)
- Refutation
- S(a);CHECK
- Try
- P(C);
- Threat
- DUALS(2)
- Refutation
- S(a);CHECK
- Try
- Actual
- P(C);
- Vars
- S(a);CHECK,N_GUARD::R1(B),XS(a)
- S(a);CHECK,N_GUARD::S(C),XS(a)
- K(b);P-FLIGHT,P_SPINS(a)::R(B)
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).