MESON Chess Problem Database
Problem Display
PID: 81042 (8/8/4B3/8/4N1n1/7K/4N3/6rk w - - 0 1)
Aliovsadzade, Rauf Gadzhiaga ogli
Scacchi e Scienze Applicate, 1999
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Ra1
- Tries
- 1.Ba2?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bb3?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bc4?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bxg4?
- threat
- 2.Sf2#
- 1...Rg3+
- 2.S4xg3#
- 1...Rf1
- 2.S4g3#
- 1...Rg2!
- threat
- 1.Bf5?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bd7?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bf7?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bc8?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Bg8?
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Ra1
- 2.S4g3#
- 1...Rb1
- 2.S4g3#
- 1...Rc1
- 2.S4g3#
- 1...Rd1
- 2.S4g3#
- 1...Re1
- 2.S4g3#
- 1...Rf1
- 2.S4g3#
- 1...Sh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rg2!
- 1...Rg3+
- 1.Ba2?
- Keys
- 1.Bd5!
- threat
- 2.Sf2#
- 2.S4g3#
- 1...Rg3+
- 2.S4xg3#
- 1...Sf2+
- 2.Sxf2#
- 1...Rg2
- 2.S4g3#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- S(c);N_GUARD::S(C)
- Tries
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);XS(c)
- Threat
- S(C)
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- R(a);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(D);
- Vars
- R(a);CHECK,N_GUARD::S(C),XR(a)
- S(c);CHECK,N_GUARD::S(C),XS(c)
- R(a);N_GUARD,SBLOCK::S(C)
- R(a);N_GUARD::S(C)
- S(c);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- Actual
- B(D);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK::B(D)+S(C),DCHECK,XR(a)
- S(c);CHECK::B(D)+S(C),DCHECK,XS(c)
- R(a);::S(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).