MESON Chess Problem Database
Problem Display
PID: 96422 (2r1r3/1Q3bp1/2nPk3/6K1/8/2NRn1B1/4N3/4R1b1 w - - 0 1)
Gray, Robert
The Chess Problem, 1947
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Sd4#
- 2.Sf4#
- 1...Sf1
- 2.Sd4#
- 2.Sf4#
- 1...Sc2
- 2.Sd4#
- 2.Sf4#
- 1...Sg2
- 2.Sd4#
- 2.Sf4#
- 1...Sc4
- 2.Sd4#
- 2.Sf4#
- 1...Sg4
- 2.Sd4#
- 2.Sf4#
- 1...Sd5
- 2.Sd4#
- 1...Sf5
- 2.Sd4#
- 2.Sf4#
- 1...Sb4
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Se5
- 2.Sf4#
- 1...Sa7
- 2.Sd4#
- 1...Se7
- 2.Sd4#
- 1...Sb8
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 2.Qxc8#
- 1...Sd1
- Tries
- 1.Rd5?
- threat
- 2.Sf4#
- 1...Sxd5
- 2.Sd4#
- 1...Rc7!
- threat
- 1.Rd5?
- Keys
- 1.Sa4!
- threat
- 2.Sc5#
- 1...Sd1
- 2.Sf4#
- 1...Sf1
- 2.Sf4#
- 1...Sc2
- 2.Sf4#
- 1...Sg2
- 2.Sf4#
- 1...Sc4
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 1...Sd5
- 2.Sd4#
- 1...Sf5
- 2.Sf4#
- 1...Sb4
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa5
- 2.Sd4#
- 1...Se5
- 2.Sf4#
- 1...Sa7
- 2.Sd4#
- 1...Se7
- 2.Sd4#
- 1...Sb8
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 2.Qxc8#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- S(b);::R(A)+S(B),DCHECK
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- S(c);SBLOCK::S(B)
- Tries
- Try
- R(D);
- Threat
- S(B)
- Vars
- S(b);XR(D)::R(A)+S(B),DCHECK
- Refutation
- R(g);
- Try
- Actual
- S(C);
- Threat
- S(C)
- Vars
- S(b);::R(A)+S(B),DCHECK
- S(b);SBLOCK::R(A)+S(B),DCHECK
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- S(c);SBLOCK::S(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).