MESON Chess Problem Database
Problem Display
PID: 138824 (2K5/8/k7/1pQ1p3/8/2b5/2R5/8 w - - 0 1)
Lincoln, Robert A
5th Comm., Seven Chess Notes, 2010
#2
3 + 4
| 145 | StrateGems | 2010 |
| 145 | StrateGems | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Ka5
- 2.Ra2#
- 1...Ba1
- 2.Ra2#
- 1...Bd4
- 2.Ra2#
- 1...b4
- 2.Ra2#
- 1...Ka5
- Tries
- 1.Kc7?
- threat
- 2.Qb6#
- 1...Ka5
- 2.Ra2#
- 2.Qa3#
- 1...Bd4
- 2.Ra2#
- 2.Qa3#
- 1...Ba5+!
- threat
- 1.Rxc3?
- threat
- 2.Ra3#
- 1...Ka5
- 2.Ra3#
- 1...b4!
- threat
- 1.Qd6+?
- 1...Ka5
- 2.Ra2#
- 1...Ka7!
- 1...Ka5
- 1.Qxb5+?
- 1...Ka7
- 2.Qb7#
- 1...Kxb5!
- 1...Ka7
- 1.Qc6+?
- 1...Ka7
- 2.Qb7#
- 1...Ka5!
- 1...Ka7
- 1.Kc7?
- Keys
- 1.Kb8!
- threat
- 2.Qa7#
- 1...Ka5
- 2.Ra2#
- 1...Bd4
- 2.Ra2#
- 1...b4
- 2.Ra2#
- threat
- 1.Kb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- K(d);P-FLIGHT,P_SPINP(b)::R(A)
- B(a);N_GUARD::R(A)
- P(b);S_CUTB(a)::R(A)
- Tries
- Try
- K(C);P-FLIGHT
- Threat
- QAR1(B)
- Refutation
- B(a);CHECK
- Try
- R(A);XB(a)
- Threat
- R(A)
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::R(A)
- Refutation
- P(b);
- Try
- Q(B);CHECK
- Vars
- K(d);P-FLIGHT::R(A)
- Refutation
- K(d);P-FLIGHT
- Try
- Q(B);CHECK,XP(b)
- Vars
- K(d);P-FLIGHT::QAR1(B)
- Refutation
- K(d);S_FLIGHT,XQ(B)
- Try
- Q(B);CHECK
- Vars
- K(d);P-FLIGHT::QAR1(B)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- K(C);P-FLIGHT
- Threat
- QAR1(B)
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::R(A)
- B(a);N_GUARD::R(A)
- P(b);S_CUTB(a)::R(A)
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).