MESON Chess Problem Database
Problem Display
PID: 238050 (8/5p1n/2pPR3/5kBb/3P2R1/p5P1/Q7/1K1B4 w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Schach, 1985
#2
9 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bg6
- 2.Re5#
- 1...Sxg5
- 2.Rf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sf8
- 2.Rf6#
- 1...c5
- 2.Qd5#
- 1...fxe6
- 2.Qc2#
- 1...Bg6
- Tries
- 1.Bh4?
- threat
- 2.Rf4#
- 2.Re5#
- 1...Bxg4
- 2.Bc2#
- 1...fxe6
- 2.Qc2#
- 2.Qf2#
- 1...Sg5
- 2.Rf4#
- 2.Rxg5#
- 1...Sf6
- 2.Rg5#
- 2.Re5#
- 2.Rxf6#
- 1...f6!
- threat
- 1.Bh6?
- threat
- 2.Rf4#
- 1...Bxg4
- 2.Bc2#
- 1...fxe6
- 2.Qf2#
- 1...Sf6
- 2.Rg5#
- 2.Re5#
- 1...f6!
- threat
- 1.Be7?
- threat
- 2.Rf4#
- 2.Re5#
- 1...Bxg4
- 2.Bc2#
- 1...fxe6
- 2.Qc2#
- 2.Qf2#
- 1...Sg5
- 2.Rf4#
- 2.Rxg5#
- 2.Rf6#
- 1...Sf6
- 2.Re5#
- 2.Rxf6#
- 1...f6!
- threat
- 1.Bd8?
- threat
- 2.Rf4#
- 2.Re5#
- 1...Bxg4
- 2.Bc2#
- 1...fxe6
- 2.Qc2#
- 2.Qf2#
- 1...Sg5
- 2.Rf4#
- 2.Rxg5#
- 2.Rf6#
- 1...Sf6
- 2.Re5#
- 2.Rxf6#
- 1...f6!
- threat
- 1.Qe2?
- threat
- 2.Bc2#
- 2.Qe4#
- 2.Qe5#
- 1...Bxg4
- 2.Qxg4#
- 2.Qe5#
- 1...Sxg5
- 2.Rf4#
- 2.Qe5#
- 1...fxe6
- 2.Bc2#
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 1...Sf6
- 2.Rxf6#
- 1...f6
- 2.Bc2#
- 2.Qe4#
- 1...a2+!
- threat
- 1.Bh4?
- Keys
- 1.Bf6!
- 1...Bxg4
- 2.Bc2#
- 1...Sxf6
- 2.Re5#
- 1...fxe6
- 2.Qf2#
- 1...Sg5
- 2.Rxg5#
- 1...Bg6
- 2.Rf4#
- 1...Sf8
- 2.Rg5#
- 1...c5
- 2.Qd5#
- 1...Bxg4
- 1.Bf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(c);SBLOCK::R1(I)
- S(f);SBLOCK,XB(G)::R1(F)
- S(f);N_GUARD::R1(I),XS(f)
- S(f);N_GUARD::R1(I)
- P(d);N_GUARD::QAR2(C)
- P(e);SBLOCK,XR(I)::QAB(C)
- Tries
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(c);SBLOCK,XR(F)::B(B)
- Refutation
- P(e);
- Try
- B(G);
- Threat
- R1(F)
- Vars
- B(c);SBLOCK,XR(F)::B(B)
- P(e);SBLOCK,XR(I)::QAR(C)
- Refutation
- P(e);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(c);SBLOCK,XR(F)::B(B)
- Refutation
- P(e);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(c);SBLOCK,XR(F)::B(B)
- Refutation
- P(e);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(f);N_GUARD::R1(I),XS(f)
- Refutation
- P(a);CHECK
- Try
- Actual
- B(G);
- Vars
- B(c);SBLOCK,XR(F)::B(B)
- S(f);SBLOCK,XB(G)::R1(I)
- P(e);SBLOCK,XR(I)::QAR(C)
- S(f);N_GUARD::R1(F),XS(f)
- B(c);SBLOCK::R1(F)
- S(f);N_GUARD::R1(F)
- P(d);N_GUARD::QAR2(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).