MESON Chess Problem Database
Problem Display
PID: 81207 (Q1b5/8/3p4/2nB4/pr1k4/P2P2Bn/2R3NK/2N1R3 w - - 0 1)
Barclay, William A
1st Prize, Christian Science Monitor, 1966
#2
10 + 7
| 3166 | Finnish Solving Championship | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rc4#
- 1...Rb2
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Rb5
- 2.Rc4#
- 1...Rb6
- 2.Rc4#
- 1...Rb8
- 2.Rc4#
- 1...Sg1
- 2.Bf2#
- 1...Sf2
- 2.Bxf2#
- 1...Sf4
- 2.Bf2#
- 1...Sg5
- 2.Bf2#
- 1...Sb3
- 2.Re4#
- 1...Sxd3
- 2.Se2#
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sa6
- 2.Re4#
- 1...Se6
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...Rb1
- Tries
- 1.Sf4?
- 1...Sxf4
- 2.Bf2#
- 1...Sxd3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Rb1
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Rb5
- 2.Rc4#
- 1...Rb6
- 2.Rc4#
- 1...Rb7
- 2.Rc4#
- 1...Rb8
- 2.Rc4#
- 1...Bg4
- 2.Qh8#
- 1...Bf5
- 2.Qh8#
- 1...Ba6
- 2.Qh8#
- 1...Be6
- 2.Qh8#
- 1...Bb7
- 2.Qh8#
- 1...Bd7
- 2.Qh8#
- 1...Sg1
- 2.Bf2#
- 1...Sf2
- 2.Bxf2#
- 1...Sg5
- 2.Bf2#
- 1...Sb3
- 2.Re4#
- 1...Sa6
- 2.Re4#
- 1...Se6
- 2.Re4#
- 1...Sb7
- 2.Re4#
- 1...Sd7
- 2.Se6#
- 2.Re4#
- 1...Rb2!
- 1...Sxf4
- 1.Ba2?
- threat
- 2.Qd5#
- 1...Rb3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Be6
- 2.Qh8#
- 1...Bb7
- 2.Qh8#
- 1...Sf4
- 2.Bf2#
- 1...Sb3
- 2.Re4#
- 2.Qe4#
- 1...Sb7
- 2.Re4#
- 1...d5
- 2.Be5#
- 2.Qxd5#
- 1...Rb7!
- threat
- 1.Bf3?
- threat
- 2.Qd5#
- 1...Rb7
- 2.Rc4#
- 1...Be6
- 2.Qh8#
- 1...Bb7
- 2.Qh8#
- 1...Sf4
- 2.Bf2#
- 1...Se4
- 2.Rxe4#
- 2.Qxe4#
- 1...d5
- 2.Be5#
- 2.Qxd5#
- 1...Sb7!
- threat
- 1.Bc4?
- threat
- 2.Se2#
- 2.Qd5#
- 1...Rxc4
- 2.Rxc4#
- 1...Sxd3
- 2.Qd5#
- 1...Sb3
- 2.Qd5#
- 1...Se4
- 2.Qd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Rb7
- 2.Se2#
- 1...Bg4
- 2.Qd5#
- 2.Qh8#
- 1...Be6
- 2.Se2#
- 2.Qh8#
- 1...Bb7
- 2.Se2#
- 2.Qh8#
- 1...Sg1
- 2.Bf2#
- 2.Qd5#
- 1...Sf4
- 2.Bf2#
- 1...d5
- 2.Se2#
- 2.Be5#
- 2.Qxd5#
- 1...Sb7!
- threat
- 1.Be4?
- threat
- 2.Se2#
- 2.Qd5#
- 1...Sxe4
- 2.Rxe4#
- 2.Qxe4#
- 1...Rb7
- 2.Se2#
- 2.Rc4#
- 1...Bg4
- 2.Qd5#
- 2.Qh8#
- 1...Be6
- 2.Se2#
- 2.Qh8#
- 1...Bb7
- 2.Se2#
- 2.Qh8#
- 1...Sg1
- 2.Qd5#
- 1...Sb7
- 2.Se2#
- 1...d5
- 2.Se2#
- 2.Qxd5#
- 1...Sf4!
- threat
- 1.Be6?
- threat
- 2.Qd5#
- 1...Sxe6
- 2.Re4#
- 2.Qe4#
- 1...Rb7
- 2.Rc4#
- 1...Bb7
- 2.Qh8#
- 1...Sf4
- 2.Bf2#
- 1...Sb7
- 2.Re4#
- 1...d5
- 2.Be5#
- 2.Qxd5#
- 1...Bxe6!
- threat
- 1.Bf7?
- threat
- 2.Qd5#
- 1...Rb7
- 2.Rc4#
- 1...Bb7
- 2.Qh8#
- 1...Sf4
- 2.Bf2#
- 1...Se6
- 2.Re4#
- 2.Qe4#
- 1...Sb7
- 2.Re4#
- 1...d5
- 2.Be5#
- 2.Qxd5#
- 1...Be6!
- threat
- 1.Sf4?
- Keys
- 1.Bc6!
- 1...Sxd3
- 2.Se2#
- 2.Re4#
- 1...Rb7
- 2.Rc4#
- 1...Rb1
- 2.Rc4#
- 1...Rb2
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Rb5
- 2.Rc4#
- 1...Rb6
- 2.Rc4#
- 1...Rb8
- 2.Rc4#
- 1...Bg4
- 2.Qh8#
- 1...Bf5
- 2.Qh8#
- 1...Ba6
- 2.Qh8#
- 1...Be6
- 2.Qh8#
- 1...Bb7
- 2.Qh8#
- 1...Bd7
- 2.Qh8#
- 1...Sg1
- 2.Bf2#
- 1...Sf2
- 2.Bxf2#
- 1...Sf4
- 2.Bf2#
- 1...Sg5
- 2.Bf2#
- 1...Sb3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sa6
- 2.Re4#
- 1...Se6
- 2.Re4#
- 1...Sb7
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...d5
- 2.Be5#
- 1...Sxd3
- 1.Bc6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::R1(C)
- R(c);N_GUARD::R1(C),XR(c)
- S(a);N_GUARD::B(H)
- S(a);N_GUARD::B(H),XS(a)
- S(e);N_GUARD::R1(B)
- S(e);N_GUARD::R1(B),XS(e)
- Tries
- Try
- S(D);
- Vars
- S(a);N_GUARD,XS(D)::B(H)
- S(e);N_GUARD,XP(G)::R1(B)
- S(e);N_GUARD::R1(B),XS(e)
- R(c);N_GUARD::R1(C)
- R(c);N_GUARD::R1(C),XR(c)
- B(g);OGATE::QAB(J)
- S(a);N_GUARD::B(H)
- S(a);N_GUARD::B(H),XS(a)
- S(e);N_GUARD::R1(B)
- Refutation
- R(c);P_PINR(C)
- Try
- B(I);
- Threat
- QAR1(J)
- Vars
- R(c);N_GUARD::R1(C)
- R(c);N_GUARD::R1(C),XR(c)
- B(g);OGATE::QAB(J)
- S(a);N_GUARD::B(H)
- S(e);N_GUARD::R1(B)
- Refutation
- R(c);
- Try
- B(I);
- Threat
- QAR1(J)
- Vars
- R(c);N_GUARD::R1(C)
- B(g);OGATE::QAB(J)
- S(a);N_GUARD::B(H)
- Refutation
- S(e);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,XB(I)::R1(C),XR(c)
- S(e);XP(G)::QAR1(J)
- S(e);::QAR1(J)
- R(c);::S(A)
- S(a);N_GUARD::B(H)
- Refutation
- S(e);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- S(a);::QAR1(J)
- S(e);::S(A)
- Refutation
- S(a);
- Try
- B(I);
- Threat
- QAR1(J)
- Vars
- R(c);N_GUARD::R1(C)
- B(g);OGATE::QAB(J)
- S(a);N_GUARD::B(H)
- S(e);N_GUARD::R1(B)
- Refutation
- B(g);XB(I)
- Try
- B(I);
- Threat
- QAR1(J)
- Vars
- R(c);N_GUARD::R1(C)
- B(g);OGATE::QAB(J)
- S(a);N_GUARD::B(H)
- S(e);N_GUARD::R1(B)
- Refutation
- B(g);
- Try
- Actual
- B(I);
- Vars
- R(c);N_GUARD::R1(C)
- R(c);N_GUARD::R1(C),XR(c)
- B(g);OGATE::QAB(J)
- S(a);N_GUARD::B(H)
- S(a);N_GUARD::B(H),XS(a)
- S(e);N_GUARD::R1(B)
- S(e);N_GUARD::R1(B),XS(e)
- P(f);N_GUARD::B(H)
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).