MESON Chess Problem Database
Problem Display
PID: 176337 (8/1P6/qp1QP3/Pp1N4/6Kb/1PBk1P2/n1r1n1N1/8 w - - 0 1)
Muller, H?
Schach-Echo, 1972
#2
10 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxc3
- 2.Sb4#
- 1...Be1
- 2.Sxe1#
- 1...Bg5
- 2.Se1#
- 1...Bf6
- 2.Se1#
- 1...Be7
- 2.Se1#
- 1...Bd8
- 2.Se1#
- 1...Saxc3
- 2.Sb4#
- 2.Sdf4#
- 1...Sc1
- 2.Sgf4#
- 1...Sg1
- 2.Sgf4#
- 1...Sexc3
- 2.Sdf4#
- 1...Sg3
- 2.Sgf4#
- 1...Sd4
- 2.Sgf4#
- 1...Sf4
- 2.Sgxf4#
- 1...Rxc3
- Tries
- 1.Kxh4?
- threat
- 2.Se1#
- 1...Rxc3
- 2.Sb4#
- 1...Saxc3
- 2.Sb4#
- 2.Sdf4#
- 1...Sexc3
- 2.Sdf4#
- 1...Sec1
- 2.Sgf4#
- 1...Sg1
- 2.Sgf4#
- 1...Sg3
- 2.Sgf4#
- 1...Sd4
- 2.Sgf4#
- 1...Sf4
- 2.Sgxf4#
- 1...Rc1!
- threat
- 1.Qf4?
- threat
- 2.Qe3#
- 2.Qe4#
- 2.Qf5#
- 1...Saxc3
- 2.Sb4#
- 2.Qe3#
- 1...Sexc3
- 2.Qe3#
- 1...Sxf4
- 2.Sgxf4#
- 1...Rc1
- 2.Qd2#
- 2.Qe4#
- 2.Qf5#
- 1...Rb2
- 2.Qe4#
- 2.Qf5#
- 1...Rd2
- 2.Qxd2#
- 2.Qe4#
- 2.Qf5#
- 1...Sec1
- 2.Qe3#
- 2.Qe4#
- 1...Sg1
- 2.Qe3#
- 2.Qe4#
- 1...Sg3
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 2.Qe4#
- 1...Bf2
- 2.Qe4#
- 2.Qf5#
- 1...Bg5
- 2.Se1#
- 2.Qe4#
- 2.Qf5#
- 1...Rxc3!
- threat
- 1.Qe5?
- threat
- 2.Qe3#
- 2.Qe4#
- 2.Qf5#
- 1...Saxc3
- 2.Qe3#
- 1...Sexc3
- 2.Qe3#
- 1...Rc1
- 2.Qe4#
- 2.Qf5#
- 1...Rb2
- 2.Qe4#
- 2.Qf5#
- 1...Rd2
- 2.Qe4#
- 2.Qf5#
- 1...Sd4
- 2.Sgf4#
- 2.Qe3#
- 2.Qe4#
- 1...Bf2
- 2.Qe4#
- 2.Qf5#
- 1...Bg5
- 2.Se1#
- 2.Qe4#
- 2.Qf5#
- 1...Sec1
- 2.Sgf4#
- 2.Sdf4#
- 2.Qe3#
- 2.Qe4#
- 1...Sg1
- 2.Sgf4#
- 2.Sdf4#
- 2.Qe3#
- 2.Qe4#
- 1...Sg3
- 2.Se1#
- 2.Sgf4#
- 2.Sdf4#
- 2.Qe3#
- 1...Sf4
- 2.Sgxf4#
- 2.Sdxf4#
- 2.Qe3#
- 2.Qe4#
- 1...Rxc3!
- threat
- 1.e7?
- threat
- 2.Qg6#
- 1...Rxc3
- 2.Sb4#
- 1...Saxc3
- 2.Sb4#
- 2.Sdf4#
- 1...Sexc3
- 2.Sdf4#
- 1...Sec1
- 2.Sgf4#
- 1...Sg1
- 2.Sgf4#
- 1...Sg3
- 2.Sgf4#
- 1...Sd4
- 2.Sgf4#
- 1...Sf4
- 2.Sgxf4#
- 1...Bf6
- 2.Se1#
- 1...bxa5!
- threat
- 1.Kxh4?
- Keys
- 1.Qd7!
- threat
- 2.Qh7#
- 1...Qxb7
- 2.Qxb5#
- 1...Rxc3
- 2.Sb4#
- 1...Saxc3
- 2.Sb4#
- 2.Sdf4#
- 1...Sexc3
- 2.Sdf4#
- 1...Sec1
- 2.Sgf4#
- 1...Sg1
- 2.Sgf4#
- 1...Sg3
- 2.Sgf4#
- 1...Sd4
- 2.Sgf4#
- 1...Sf4
- 2.Sgxf4#
- 1...Be7
- 2.Se1#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(b);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- B(e);N_GUARD::S(A),XB(e)
- B(e);N_GUARD::S(A)
- S(c);N_GUARD::S(A)
- S(c);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);N_GUARD::S(A),XS(c)
- Tries
- Try
- K(E);P-FLIGHT,XB(e)
- Threat
- S(A)
- Vars
- R(b);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- Refutation
- R(b);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(c);XB(C)::QAR1(H)
- S(c);XQ(H)::S(A),XS(c)
- S(c);::QAR1(H)
- Refutation
- R(b);XB(C)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(a);XB(C)::QAR1(H)
- S(c);XB(C)::QAR1(H)
- Refutation
- R(b);XB(C)
- Try
- P(I);
- Threat
- QAB(H)
- Vars
- R(b);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- B(e);N_GUARD::S(A)
- Refutation
- P(h);XP(F)
- Try
- Actual
- Q(H);
- Threat
- QAB(H)
- Vars
- Q(g);N_GUARD,XP(J)::QAB(H),XP(f)
- R(b);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);SBLOCK,XB(C)::QAR(H)+S(G),DCHECK
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- B(e);N_GUARD::S(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).