MESON Chess Problem Database
Problem Display
PID: 114836 (2r2b1B/N5r1/3P2Pp/7K/p1kP3R/n6R/N3P1Q1/1n3B2 w - - 0 1)
Andrade, Barry Jack da Costa
Sunday Times, 1924
#2
12 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxg6
- 2.e4#
- 1...Rxa7
- 2.e4#
- 1...Rb7
- 2.e4#
- 1...Rgc7
- 2.e4#
- 1...Rd7
- 2.e4#
- 1...Re7
- 2.e4#
- 1...Rh7
- 2.e4#
- 1...Rg8
- 2.e4#
- 1...Rc5+
- 2.d5#
- 1...Rc6
- 2.Qxc6#
- 1...Ra8
- 2.Qc6#
- 1...Rb8
- 2.Qc6#
- 1...Rd8
- 2.Qc6#
- 1...Re8
- 2.Qc6#
- 1...Sd2
- 2.Rc3#
- 1...Sc3
- 2.Rxc3#
- 1...Rxg6
- Tries
- 1.Bxg7?
- threat
- 2.e4#
- 1...Rc5+
- 2.d5#
- 1...Sc3
- 2.Rxc3#
- 1...Sd2
- 2.Rc3#
- 1...Bxg7!
- threat
- 1.Bxg7?
- Keys
- 1.Qb7!
- threat
- 2.e3#
- 1...Rc5+
- 2.d5#
- 1...Rxb7
- 2.e4#
- 1...Rc6
- 2.Qxc6#
- 1...Rf7
- 2.Qxf7#
- 1...Sd2
- 2.Rc3#
- 1...Sc3
- 2.Rxc3#
- 1...Sb5
- 2.Qxb5#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- R(f);XP(J)::B(A)+P(C)
- R(f);XS(K)::B(A)+P(C)
- R(f);::B(A)+P(C)
- R(g);CHECK,SBLOCK::R(G)+P(F)
- R(g);N_GUARD::QAR2(D),XR(g)
- R(g);N_GUARD::QAR2(D)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- Tries
- Try
- B(L);XR(f)
- Threat
- B(A)+P(C)
- Vars
- R(g);CHECK,SBLOCK::R(G)+P(F)
- S(a);N_GUARD::R1(E),XS(a)
- S(a);N_GUARD::R1(E)
- Refutation
- B(h);XB(L)
- Try
- Actual
- Q(D);
- Threat
- B(A)+P(C)
- Vars
- R(g);CHECK,SBLOCK::R(G)+P(F)
- R(f);XQ(D)::B(A)+P(C)
- R(g);N_GUARD::QAR2(D),XR(g)
- R(f);N_GUARD::QAB(D),XR(f)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- S(b);N_GUARD::QAB1(D),XS(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).