MESON Chess Problem Database
Problem Display
PID: 175879 (5K2/3p1R2/4k3/2R1N3/8/6N1/8/8 w - - 0 1)
Lincoln, Robert A
The Problemist Supplement, 2018
#2
5 + 2
SOLUTION
- SOUND
- Tries
- 1.Sf5?
- 1...d6
- 2.Sd4#
- 2.Sg7#
- 1...d5!
- 1...d6
- 1.Sf3?
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Sd4#
- 2.Sg5#
- 1...Kd6!
- 1...d5
- 1.Sc4?
- threat
- 2.Re5#
- 1...d5
- 2.Rc6#
- 1...d6!
- threat
- 1.Sg4?
- threat
- 2.Rf6#
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Re7#
- 1...Kd6!
- threat
- 1.Sg6?
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Sf4#
- 1...Kd6!
- 1...d5
- 1.Re7+?
- 1...Kd6
- 2.Se4#
- 1...Kf6!
- 1...Kd6
- 1.Sf5?
- Keys
- 1.Sd3!
- 1...Kd6
- 2.Rf6#
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Sf4#
- 1...Kd6
- 1.Sd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(A);
- Refutation
- P(b);
- Try
- S(C);
- Vars
- P(b);N_GUARD,SBLOCK::R(B)
- Refutation
- K(a);P-FLIGHT
- Try
- S(C);
- Threat
- R1(B)
- Vars
- P(b);N_GUARD,SBLOCK::R(B)
- Refutation
- P(b);
- Try
- S(C);
- Threat
- R1(D)
- Vars
- P(b);N_GUARD,SBLOCK::R(B)
- P(b);SBLOCK::R1(D)
- Refutation
- K(a);P-FLIGHT
- Try
- S(C);
- Vars
- P(b);N_GUARD,SBLOCK::R(B)
- P(b);SBLOCK::S(C)
- Refutation
- K(a);P-FLIGHT
- Try
- R(D);CHECK
- Vars
- K(a);P-FLIGHT::S(A)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- S(C);
- Vars
- K(a);P-FLIGHT::R(D)
- P(b);N_GUARD,SBLOCK::R(B)
- P(b);SBLOCK::S(C)
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).