MESON Chess Problem Database
Problem Display
PID: 120949 (8/2N1QB2/K1k5/8/p2r4/3p4/8/8 w - - 0 1)
Wurzburg, Otto
Checkmate, 1901
#2
4 + 4
| 6490 | yacpdb | 2009 |
| 5454 | Near Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Bd5#
- 2.Be8#
- 1...Rc4
- 2.Bd5#
- 2.Be8#
- 1...Re4
- 2.Bd5#
- 2.Be8#
- 1...Rf4
- 2.Bd5#
- 2.Be8#
- 1...Rg4
- 2.Bd5#
- 2.Be8#
- 1...Rh4
- 2.Bd5#
- 2.Be8#
- 1...Rd5
- 2.Bxd5#
- 1...Rb4
- Tries
- 1.Sb5?
- threat
- 2.Sxd4#
- 2.Sa7#
- 2.Qc7#
- 1...Rd6
- 2.Qxd6#
- 2.Qc7#
- 1...Rb4
- 2.Sa7#
- 2.Qd6#
- 2.Qc7#
- 1...Rc4
- 2.Sa7#
- 2.Qd6#
- 2.Qc7#
- 1...Re4
- 2.Sa7#
- 2.Qd6#
- 2.Qc7#
- 1...Rf4
- 2.Sa7#
- 2.Qd6#
- 2.Qc7#
- 1...Rg4
- 2.Sa7#
- 2.Qd6#
- 2.Qc7#
- 1...Rh4
- 2.Sa7#
- 2.Qd6#
- 2.Qc7#
- 1...Rd5
- 2.Sa7#
- 2.Qc7#
- 1...Rd8
- 2.Sa7#
- 2.Qc7#
- 1...Rd7!
- threat
- 1.Sb5?
- Keys
- 1.Se6!
- threat
- 2.Sxd4#
- 1...Kd5
- 2.Sd8#
- 1...Rb4
- 2.Sd8#
- 1...Rc4
- 2.Sd8#
- 1...Re4
- 2.Sd8#
- 1...Rf4
- 2.Sd8#
- 1...Rg4
- 2.Sd8#
- 1...Rh4
- 2.Sd8#
- 1...Rd5
- 2.Qc7#
- 1...Rd6
- 2.Qb7#
- 1...Rd7
- 2.Qc5#
- 1...Rd8
- 2.Sxd8#
- threat
- 1.Se6!
Anticipated by 4695(1887)
This anticipates 52598(1960), 238658(1970), 102478(1975), 187410(2014)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::B(D),XR(c)
- Tries
- Try
- S(B);
- Threat
- DUALS(3)
- Refutation
- R(c);
- Try
- Actual
- S(B);
- Threat
- S(B),XR(c)
- Vars
- K(d);S_FLIGHT::B(D)+S(B)
- R(c);N_GUARD::S(B)
- R(c);SBLOCK::QAR1(C)
- R(c);SBLOCK::QAB1(C)
- R(c);N_GUARD::S(B),XR(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).