MESON Chess Problem Database
Problem Display
PID: 240294 (k2n4/p2K4/1RP1Q3/8/8/8/8/8 w - - 0 1)
Lincoln, Robert A
Problem-Forum, 2010
#2
4 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sxc6
- 2.Qxc6#
- 1...Sxc6
- Tries
- 1.Kc7?
- threat
- 2.Rb8#
- 2.Qc8#
- 1...Sxc6
- 2.Qxc6#
- 1...axb6
- 2.Qa2#
- 1...a5
- 2.Ra6#
- 1...a6
- 2.Rxa6#
- 1...Sb7
- 2.Qc8#
- 2.cxb7#
- 1...Sxe6+!
- threat
- 1.Qd6?
- threat
- 2.Rb8#
- 2.Qb8#
- 1...Sxc6
- 2.Qxc6#
- 1...a5
- 2.Ra6#
- 2.Qb8#
- 1...a6
- 2.Rxa6#
- 2.Qb8#
- 1...Sb7
- 2.cxb7#
- 1...axb6!
- threat
- 1.Kc7?
- Keys
- 1.Kc8!
- threat
- 2.Rb8#
- 1...Sxc6
- 2.Qxc6#
- 1...axb6
- 2.Qa2#
- 1...a5
- 2.Ra6#
- 1...a6
- 2.Rxa6#
- 1...Sb7
- 2.cxb7#
- threat
- 1.Kc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(c);OGATE,XP(B)::QAB(C),XS(c)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(c);OGATE,XP(B)::QAB(C),XS(c)
- P(a);OGATEB,XR(A)::QAR(C)
- P(a);OGATEB::R(A)
- P(a);OGATEB::R(A),XP(a)
- Refutation
- S(c);CHECK,XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(c);OGATE,XP(B)::QAB(C),XS(c)
- S(c);OGATE::P(B),XS(c)
- Refutation
- P(a);XR(A)
- Try
- Actual
- K(D);S_FLIGHT
- Threat
- R1(A)
- Vars
- S(c);OGATE,XP(B)::QAB(C),XS(c)
- P(a);OGATEB,XR(A)::QAR(C)
- P(a);OGATEB::R(A)
- P(a);OGATEB::R(A),XP(a)
- S(c);OGATE::P(B),XS(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).