MESON Chess Problem Database
Problem Display
PID: 49897 (n7/Q1p5/1n6/8/8/3p4/3P1R1p/R3K1kr w Q - 0 1)
Gruber, Bratoljub
Mat Plus, 1995
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...Sa4
- 2.0-0-0#
- 1...Sc4
- 2.0-0-0#
- 1...Sd5
- 2.0-0-0#
- 1...Sd7
- 2.0-0-0#
- 1...Sc8
- 2.0-0-0#
- 1...c5
- 2.Qg7#
- 1...c6
- 2.Qg7#
- 1...Sa4
- Tries
- 1.Ra5?
- threat
- 2.Rg5#
- 1...c5
- 2.Qg7#
- 1...Sd5!
- threat
- 1.Qb7?
- threat
- 2.Rf1#
- 2.Rg2#
- 2.Qg2#
- 1...c6
- 2.Qg7#
- 1...Sd5!
- threat
- 1.Qxc7?
- threat
- 2.Qg3#
- 2.Qg7#
- 1...Sd7
- 2.Qg3#
- 1...Sxc7!
- threat
- 1.Qxa8?
- threat
- 2.Rf1#
- 2.Rg2#
- 2.Qg2#
- 2.Qg8#
- 1...Sd5
- 2.Qg8#
- 1...Sc8
- 2.Rf1#
- 2.Rg2#
- 2.Qg2#
- 1...c6
- 2.Qg8#
- 1...Sxa8!
- threat
- 1.Ra5?
- Keys
- 1.Ra6!
- 1...Sa4
- 2.Rg6#
- 1...Sc4
- 2.Rg6#
- 1...Sd5
- 2.Rg6#
- 1...Sd7
- 2.Rg6#
- 1...Sc8
- 2.Rg6#
- 1...c5
- 2.Qg7#
- 1...c6
- 2.Qg7#
- 1...Sa4
- 1.Ra6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(e);::0-0-0
- P(f);OGATE::QAR(E)
- Tries
- Try
- R(A);
- Threat
- R(A)
- Vars
- P(f);OGATE::QAR(E)
- Refutation
- S(e);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- P(f);OGATE::QAR(E)
- Refutation
- S(e);
- Try
- Q(E);XP(f)
- Threat
- DUALS(2)
- Vars
- S(e);::QAR2(E)
- Refutation
- S(g);XQ(E)
- Try
- Q(E);XS(g)
- Threat
- DUALS(4)
- Vars
- S(e);::QAB(E)
- P(f);::QAB(E)
- Refutation
- S(e);XQ(E)
- Try
- Actual
- R(A);
- Vars
- S(e);OGATE::R(A)
- P(f);OGATE::QAR(E)
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).