MESON Chess Problem Database
Problem Display
PID: 166714 (k2K4/4Q3/1P6/4N3/8/8/r2b4/8 w - - 0 1)
Lincoln, Robert A
StrateGems, 2016
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Qa7#
- 1...Rc2
- 2.Qa7#
- 1...Ra7
- 2.Qxa7#
- 1...Ba5
- 2.Qa7#
- 1...Rb2
- Tries
- 1.Kc8?
- threat
- 2.Qb7#
- 1...Ra7
- 2.Qxa7#
- 1...Rc2+!
- threat
- 1.Qc7?
- threat
- 2.Qc8#
- 1...Rc2
- 2.Qa7#
- 1...Bg5+!
- threat
- 1.Qd7?
- threat
- 2.Qc8#
- 1...Kb8
- 2.Qc8#
- 1...Rc2
- 2.Qa7#
- 1...Bg5+!
- threat
- 1.b7+?
- 1...Kb8
- 2.Sc6#
- 1...Ka7!
- 1...Kb8
- 1.Kc8?
- Keys
- 1.Sc6!
- threat
- 2.b7#
- 1...Rb2
- 2.Qa7#
- 1...Ra7
- 2.Qxa7#
- 1...Ba5
- 2.Qa7#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::QAR1(C)
- R(a);N_GUARD::QAR1(C),XR(a)
- B(b);P_PINP(B),S_CUTR(a)::QAR1(C)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAB1(C)
- Vars
- R(a);N_GUARD::QAR1(C),XR(a)
- Refutation
- R(a);CHECK
- Try
- Q(C);
- Threat
- QAR2(C)
- Vars
- R(a);N_GUARD::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- Q(C);
- Threat
- QAR2(C)
- Vars
- K(c);P-FLIGHT::QAR1(C)
- R(a);N_GUARD::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- P(B);CHECK
- Vars
- K(c);P-FLIGHT::S(A)
- Refutation
- K(c);P-FLIGHT
- Try
- Actual
- S(A);
- Threat
- P(B)
- Vars
- R(a);N_GUARD::QAR1(C)
- R(a);N_GUARD::QAR1(C),XR(a)
- B(b);P_PINP(B),S_CUTR(a)::QAR1(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).