MESON Chess Problem Database
Problem Display
PID: 81963 (5Nn1/P1B1r3/2pN4/3kP3/K7/p1QP3B/5bn1/6r1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Magyar Sakkelet, 1970
#2
9 + 8
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bxg2#
- 1...Rb1
- 2.Bxg2#
- 1...Rc1
- 2.Bxg2#
- 1...Rd1
- 2.Bxg2#
- 1...Rf1
- 2.Bxg2#
- 1...Rh1
- 2.Bxg2#
- 1...Rxe5
- 2.Qc4#
- 1...Re6
- 2.Bxe6#
- 1...Rxc7
- 2.Be6#
- 1...Rd7
- 2.Be6#
- 1...Rf7
- 2.Be6#
- 1...Rg7
- 2.Be6#
- 1...Rh7
- 2.Be6#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Ra1
- Tries
- 1.Se4?
- threat
- 2.Qc4#
- 1...Rxc7
- 2.Be6#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Se3
- 2.Qc5#
- 1...Rc1!
- threat
- 1.Sb5?
- threat
- 2.Qc4#
- 1...Rxc7
- 2.Sxc7#
- 2.Be6#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bxg2#
- 1...Se3
- 2.Qd4#
- 1...cxb5+!
- threat
- 1.Sf5?
- threat
- 2.Qc4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bxg2#
- 1...Se3
- 2.Qd4#
- 1...Rxc7!
- threat
- 1.Sb7?
- threat
- 2.Qc4#
- 1...Rxc7
- 2.Be6#
- 1...Rc1
- 2.Bxg2#
- 1...Se3
- 2.Qc5#
- 1...c5!
- threat
- 1.Sf7?
- threat
- 2.Qc4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bxg2#
- 1...Se3!
- threat
- 1.Se8?
- threat
- 2.Qc4#
- 1...Rxc7
- 2.Sxc7#
- 2.Be6#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bxg2#
- 1...Se3!
- threat
- 1.Sg6?
- threat
- 2.Qc4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Se3
- 2.Sf4#
- 1...Rc1!
- threat
- 1.d4?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...c5
- 2.Qxc5#
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bxg2#
- 1...Se3
- 2.Qc5#
- 1...Bxd4!
- threat
- 1.Se4?
- Keys
- 1.Sc8!
- threat
- 2.Qc4#
- 1...Rxc7
- 2.Be6#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bxg2#
- 1...Se3
- 2.Sb6#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(a);N_GUARD::B(C),XS(c)
- R(g);SBLOCK,XP(E)::QAB1(A)
- R(g);N_GUARD::B(C),XR(g)
- R(g);N_GUARD,XB(H)::B(C)
- R(g);N_GUARD::B(C)
- P(f);::P=Q
- Tries
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- R(g);N_GUARD,XB(H)::B(C)
- P(f);::P=Q
- S(c);S_CUTB(b)::QAR1(A)
- Refutation
- R(a);
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- P(f);::P=Q
- R(a);N_GUARD::B(C),XS(c)
- S(c);S_CUTB(b)::QAR1(A)
- Refutation
- P(f);CHECK,XS(F)
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- P(f);::P=Q
- R(a);N_GUARD::B(C),XS(c)
- S(c);S_CUTB(b)::QAR1(A)
- Refutation
- R(g);XB(H)
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- R(g);N_GUARD,XB(H)::B(C)
- R(a);N_GUARD::B(C),XS(c)
- S(c);S_CUTB(b)::QAR1(A)
- Refutation
- P(f);
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- P(f);::P=Q
- R(a);N_GUARD::B(C),XS(c)
- Refutation
- S(c);
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- P(f);::P=Q
- R(a);N_GUARD::B(C),XS(c)
- Refutation
- S(c);
- Try
- S(I);
- Threat
- QAB1(A)
- Vars
- P(f);::P=Q
- S(c);N_GUARD::S(I)
- Refutation
- R(a);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::B(C),XS(c)
- S(c);::QAR1(A)
- Refutation
- B(b);XP(B)
- Try
- Actual
- S(F);
- Threat
- QAB1(A)
- Vars
- R(g);N_GUARD,XB(H)::B(C)
- P(f);::P=Q
- R(a);N_GUARD::B(C),XS(c)
- S(c);S_CUTB(b)::S(F)
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).