MESON Chess Problem Database
Problem Display
PID: 179963 (nB1K4/1p4Rp/2k3n1/2P2Q1p/8/7p/5P1r/1R6 w - - 0 1)
Gross, Erwin
Die Schwalbe, 1971
#2
7 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Rxb6#
- 2.Rc7#
- 1...Sc7
- 2.Rb6#
- 2.Rxc7#
- 1...h6
- 2.Rxg6#
- 1...Sb6
- Tries
- 1.Ba7?
- threat
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 2.Qf3#
- 1...Rxf2
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 1...Se5
- 2.Qe4#
- 2.Qe6#
- 1...Sf4
- 2.Qd7#
- 1...Sh4
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 1...Se7
- 2.Qe6#
- 2.Qd7#
- 1...Sf8
- 2.Qe4#
- 2.Qf3#
- 1...Sb6
- 2.Rxb6#
- 2.Rc7#
- 1...Sc7
- 2.Rb6#
- 2.Rxc7#
- 2.Qd7#
- 1...b6!
- threat
- 1.Rd7?
- threat
- 2.Rd6#
- 2.Qd5#
- 1...Sf4
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sb6
- 2.Rxb6#
- 2.Rd6#
- 2.Rc7#
- 1...Sc7
- 2.Rb6#
- 2.Rd6#
- 2.Rxc7#
- 1...b5
- 2.Qd5#
- 1...b6
- 2.Qd5#
- 1...Se5!
- threat
- 1.Ba7?
- Keys
- 1.Rc7+!
- 1...Sxc7
- 2.Rb6#
- 1...Sxc7
- 1.Rc7+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- P(g);N_GUARD::R(E),XS(e)
- Tries
- Try
- B(F);
- Threat
- DUALS(4)
- Vars
- S(e);::QAB1(D)
- Refutation
- P(f);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- S(e);::R1(E)
- P(f);::QAB1(D)
- Refutation
- S(e);
- Try
- Actual
- R(E);CHECK
- Vars
- S(h);XR(E)::R1(A)
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).