MESON Chess Problem Database
Problem Display
PID: 253004 (8/1nQ4B/3r4/4P3/1PPk4/2pN4/8/2BRK3 w - - 0 1)
Ahues, Herbert Siegfried Oskar
idee & form, 2020
#2
9 + 4
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Ra6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rb6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rc6
- 2.Sb2#
- 1...Re6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rf6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rg6
- 2.Sf2#
- 1...Rh6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd7
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd8
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Sa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sd8
- 2.Qc5#
- 1...Rd5
- Tries
- 1.Kf1?
- 1...Rf6+
- 2.Sf2#
- 2.Sf4#
- 1...Rc6
- 2.Sb2#
- 1...Rg6
- 2.Sf2#
- 1...Sc5
- 2.Qxc5#
- 1...Rd5
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Ra6
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rb6
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Re6
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rh6
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd7
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd8
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Sa5
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...c2!
- 1...Rf6+
- 1.Kf2?
- threat
- 2.Be3#
- 1...Rf6+
- 2.Sf4#
- 1...Rc6
- 2.Sb2#
- 1...Sc5
- 2.Qxc5#
- 1...c2
- 2.Bb2#
- 1...Rg6!
- threat
- 1.Bf4?
- threat
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Rc6
- 2.Sb2#
- 1...Rg6
- 2.Sf2#
- 1...Sc5
- 2.Qxc5#
- 1...c2!
- threat
- 1.Bg5?
- 1...Rc6
- 2.Sb2#
- 1...Rg6
- 2.Sf2#
- 1...Sc5
- 2.Qxc5#
- 1...Rd5
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Ra6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Rb6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Re6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Rf6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Rh6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Rd7
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Rd8
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 1...Sa5
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...c2!
- 1...Rc6
- 1.Bf5?
- 1...Rc6
- 2.Sb2#
- 1...Sc5
- 2.Qxc5#
- 1...Rd5
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Ra6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rb6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Re6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rf6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rg6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rh6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd7
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd8
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Sa5
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...c2!
- 1...Rc6
- 1.Bg6?
- 1...Rxg6
- 2.Sf2#
- 1...Rc6
- 2.Sb2#
- 1...Sc5
- 2.Qxc5#
- 1...Rd5
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Ra6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rb6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Re6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rf6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd7
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Rd8
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 1...Sa5
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...c2!
- 1...Rxg6
- 1.exd6?
- 1...Sxd6
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sa5
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...c2!
- 1...Sxd6
- 1.e6?
- 1...Rxe6+
- 2.Se5#
- 1...Rc6
- 2.Sb2#
- 2.Se5#
- 2.Qf4#
- 1...Sc5
- 2.Qxc5#
- 1...Rd5
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Se5#
- 2.Qf4#
- 1...Ra6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Se5#
- 2.Qf4#
- 1...Rb6
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Se5#
- 2.Qf4#
- 1...Rd7
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Se5#
- 2.Qf4#
- 1...Rd8
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Se5#
- 2.Qf4#
- 1...Sa5
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...c2!
- 1...Rxe6+
- 1.Kf1?
- Keys
- 1.Ke2!
- threat
- 2.Be3#
- 1...Rc6
- 2.Sb2#
- 1...Rg6
- 2.Sf2#
- 1...Sc5
- 2.Qxc5#
- 1...c2
- 2.Bb2#
- threat
- 1.Ke2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H)
- S(d);N_GUARD::QAB1(H),XS(d)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- K(C);S_FLIGHT
- Threat
- B(A)
- Vars
- R(c);CHECK::R(B)+S(D)
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- P(a);OGATEB::B(A)
- Refutation
- R(c);
- Try
- B(A);
- Threat
- DUALS(3)
- Vars
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- B(I);
- Vars
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- B(I);
- Vars
- R(c);XB(I)::R(B)+S(D)
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- P(G);XR(c)
- Vars
- S(d);N_GUARD,XP(G)::QAB1(H)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- P(G);
- Vars
- R(c);CHECK,XP(G)::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- Actual
- K(C);P-FLIGHT
- Threat
- B(A)
- Vars
- R(c);::R(B)+S(D)
- S(d);N_GUARD::QAB1(H),XS(d)
- P(a);OGATEB::B(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).