MESON Chess Problem Database
Problem Display
PID: 286195 (1K3n2/3p3p/7p/5k2/8/5B1N/4R1R1/B7 w - - 0 1)
Jonsson, Gustav
To Mat, 1956
#2
6 + 5
| 15601 | Albrecht-Leiss-Degener Collection | 2026 |
| 5454 | Near Snap | 2026 |
SOLUTION
- SOUND
- Sets
- 1...Se6
- 2.Be4#
- 1...Sg6
- 2.Bg4#
- 1...h5
- 2.Rg5#
- 1...Se6
- Tries
- 1.Bg7?
- threat
- 2.Re5#
- 1...Sg6
- 2.Bg4#
- 1...d6!
- threat
- 1.Bh8?
- threat
- 2.Re5#
- 1...Sg6
- 2.Bg4#
- 1...d6!
- threat
- 1.Bd5?
- threat
- 2.Ref2#
- 1...Se6
- 2.Be4#
- 1...Sg6!
- threat
- 1.Bh5?
- threat
- 2.Rgf2#
- 1...Sg6
- 2.Bg4#
- 1...Se6!
- threat
- 1.Re7?
- threat
- 2.Be4#
- 1...Se6
- 2.Rf7#
- 1...d5!
- threat
- 1.Rg8?
- threat
- 2.Bg4#
- 1...h5
- 2.Rg5#
- 1...Sg6!
- threat
- 1.Bg7?
- Keys
- 1.Rg7!
- threat
- 2.Bg4#
- 1...Sg6
- 2.Rf7#
- 1...h5
- 2.Rg5#
- threat
- 1.Rg7!
This anticipates 134815(2009)
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- S(e);SBLOCK::B(D)
- P(b);N_GUARD::R1(C)
- Tries
- Try
- B(A);
- Threat
- R1(B)
- Vars
- S(e);SBLOCK::B(D)
- Refutation
- P(c);
- Try
- B(A);
- Threat
- R1(B)
- Vars
- S(e);SBLOCK::B(D)
- Refutation
- P(c);
- Try
- B(D);
- Threat
- R(B)
- Vars
- S(e);SBLOCK::B(D)
- Refutation
- S(e);
- Try
- B(D);
- Threat
- R(C)
- Vars
- S(e);SBLOCK::B(D)
- Refutation
- S(e);
- Try
- R(B);
- Threat
- B(D)
- Vars
- S(e);SBLOCK::R(B)
- Refutation
- P(c);
- Try
- R(C);
- Threat
- B(D)
- Vars
- P(b);N_GUARD::R1(C)
- Refutation
- S(e);
- Try
- Actual
- R(C);
- Threat
- B(D)
- Vars
- S(e);SBLOCK::R(C)
- P(b);N_GUARD::R1(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).