MESON Chess Problem Database
Problem Display
PID: 63785 (B3R3/3p4/N2kN3/Kn4pr/5ppq/4P3/1Qn2r1b/1b6 w - - 0 1)
Dittrich, Stefan
1st Prize, Schach, 1979
#2
7 + 12
| 3750 | FIDE Album (1977-1979) | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Qb8#
- 1...Sc3
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sa7
- 2.Qb8#
- 1...Sa3
- Tries
- 1.Sxf4?
- threat
- 2.Qe5#
- 2.Qf6#
- 1...Rxf4
- 2.Qe5#
- 1...Bxf4
- 2.Qf6#
- 1...Rh6
- 2.Qe5#
- 1...Ba2
- 2.Qe5#
- 1...Scd4
- 2.Qb4#
- 1...Sc3
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sc7
- 2.Qe5#
- 2.Qb6#
- 1...gxf4!
- threat
- 1.Sec5?
- threat
- 2.Se4#
- 2.Qe5#
- 2.Qf6#
- 1...Sxe3
- 2.Qe5#
- 2.Qf6#
- 1...fxe3
- 2.Se4#
- 1...Rh6
- 2.Se4#
- 2.Qe5#
- 1...Ba2
- 2.Se4#
- 2.Qe5#
- 1...Sa1
- 2.Qe5#
- 2.Qf6#
- 1...Se1
- 2.Qe5#
- 2.Qf6#
- 1...Sca3
- 2.Qe5#
- 2.Qf6#
- 1...Sb4
- 2.Qe5#
- 2.Qf6#
- 1...Sc3
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Se4#
- 2.Qb8#
- 1...Sc7
- 2.Se4#
- 2.Qe5#
- 2.Qb6#
- 1...f3
- 2.Se4#
- 2.Qf6#
- 1...Scd4!
- threat
- 1.Sxg5?
- threat
- 2.Se4#
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 1...Rxg5
- 2.Qf6#
- 1...Sxe3
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...fxe3
- 2.Se4#
- 1...Rh6
- 2.Se4#
- 2.Sf7#
- 2.Qe5#
- 1...Rh7
- 2.Se4#
- 2.Qe5#
- 2.Qf6#
- 1...Ba2
- 2.Se4#
- 2.Qe5#
- 1...Sa1
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Se1
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Sca3
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Sb4
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 2.Qxb4#
- 1...Scd4
- 2.Sf7#
- 2.Qb4#
- 1...Sba3
- 2.Qe5#
- 2.Qf6#
- 2.Qb6#
- 2.Qb8#
- 1...Sc3
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sa7
- 2.Qe5#
- 2.Qf6#
- 2.Qb8#
- 1...Sc7
- 2.Qe5#
- 2.Qb6#
- 1...f3
- 2.Se4#
- 2.Sf7#
- 2.Qf6#
- 1...Qxg5!
- threat
- 1.Sec7?
- threat
- 2.Sxb5#
- 2.Qe5#
- 2.Qf6#
- 1...Sxc7
- 2.Qe5#
- 2.Qb6#
- 1...fxe3
- 2.Sxb5#
- 1...Rh6
- 2.Sxb5#
- 2.Qe5#
- 1...Ba2
- 2.Sxb5#
- 2.Qe5#
- 1...Sca3
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Scd4
- 2.Qb4#
- 1...Sba3
- 2.Qe5#
- 2.Qf6#
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sa7
- 2.Qe5#
- 2.Qf6#
- 1...f3
- 2.Sxb5#
- 2.Qf6#
- 1...Sbd4!
- threat
- 1.Sg7?
- threat
- 2.Sf5#
- 2.Qe5#
- 2.Qf6#
- 1...Sxe3
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Rh6
- 2.Sf5#
- 2.Qe5#
- 1...Ba2
- 2.Sf5#
- 2.Qe5#
- 1...Sa1
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Se1
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Sca3
- 2.Qe5#
- 2.Qf6#
- 2.Qb4#
- 1...Sb4
- 2.Qe5#
- 2.Qf6#
- 2.Qxb4#
- 1...Scd4
- 2.Qb4#
- 1...Sc3
- 2.Sf5#
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sc7
- 2.Sf5#
- 2.Qe5#
- 2.Qb6#
- 1...f3
- 2.Sf5#
- 2.Qf6#
- 1...fxe3!
- threat
- 1.Sd8?
- threat
- 2.Sf7#
- 2.Qe5#
- 2.Qf6#
- 1...Rh6
- 2.Sf7#
- 2.Qe5#
- 1...Rh7
- 2.Qe5#
- 2.Qf6#
- 1...Ba2
- 2.Qe5#
- 1...Scd4
- 2.Sf7#
- 2.Qb4#
- 1...Sc3
- 2.Sf7#
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Sf7#
- 2.Qb8#
- 1...Sc7
- 2.Sf7#
- 2.Qe5#
- 2.Qb6#
- 1...f3
- 2.Sf7#
- 2.Qf6#
- 1...fxe3!
- threat
- 1.Sf8?
- threat
- 2.Qe5#
- 2.Qf6#
- 1...Rh6
- 2.Qe5#
- 1...Ba2
- 2.Qe5#
- 1...Scd4
- 2.Qb4#
- 1...Sc3
- 2.Qb6#
- 2.Qb8#
- 1...Sbd4
- 2.Qb8#
- 1...Sc7
- 2.Qe5#
- 2.Qb6#
- 1...f3
- 2.Qf6#
- 1...fxe3!
- threat
- 1.Qxb5?
- threat
- 2.Qc5#
- 2.Qd5#
- 2.Qb8#
- 1...Sxe3
- 2.Qc5#
- 2.Qb8#
- 1...Rd2
- 2.Qc5#
- 2.Qb8#
- 1...Ba2
- 2.Qc5#
- 2.Qb8#
- 1...Sb4
- 2.Qc5#
- 2.Qb8#
- 1...dxe6!
- threat
- 1.Sxf4?
- Keys
- 1.Sd4!
- threat
- 2.Sxb5#
- 2.Sf5#
- 1...Sxe3
- 2.Sxb5#
- 2.Qb4#
- 1...Scxd4
- 2.Qb4#
- 1...Sbxd4
- 2.Qb8#
- 1...fxe3
- 2.Sxb5#
- 1...Sa1
- 2.Sxb5#
- 2.Qb4#
- 1...Se1
- 2.Sxb5#
- 2.Qb4#
- 1...Sca3
- 2.Qb4#
- 1...Sb4
- 2.Sxb5#
- 2.Qxb4#
- 1...Sba3
- 2.Sf5#
- 2.Qb6#
- 2.Qb8#
- 1...Sc3
- 2.Sf5#
- 2.Qb6#
- 2.Qb8#
- 1...Sa7
- 2.Sf5#
- 2.Qb8#
- 1...Sc7
- 2.Sf5#
- 2.Qb6#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- S(h);OGATE::QAB(A)
- Tries
- Try
- S(E);XP(e)
- Threat
- DUALS(2)
- Vars
- R(c);XS(E)::QAB1(A)
- B(d);XS(E)::QAR2(A)
- R(j);::QAB1(A)
- B(a);::QAB1(A)
- S(b);N_GUARD::QAB(A)
- S(h);OGATE::QAB(A)
- Refutation
- P(i);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(e);XP(B)::S(E)
- Refutation
- S(b);
- Try
- S(E);XP(i)
- Threat
- DUALS(4)
- Vars
- R(j);XS(E)::QAR2(A)
- P(e);XP(B)::S(E)
- S(h);OGATE,P_PINS(E)::QAB(A)
- Refutation
- Q(g);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(e);XP(B)::S(E),XS(h)
- S(b);N_GUARD::QAB(A)
- S(h);OGATE::QAR2(A)
- Refutation
- S(h);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD::QAB(A)
- S(h);OGATE::QAB(A)
- Refutation
- P(e);XP(B)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(a);::QAB1(A)
- Refutation
- P(e);XP(B)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(j);::QAB1(A)
- B(a);::QAB1(A)
- S(b);N_GUARD::QAB(A)
- S(h);OGATE::QAB(A)
- P(e);::QAR2(A)
- Refutation
- P(e);XP(B)
- Try
- Q(A);XS(h)
- Threat
- DUALS(3)
- Refutation
- P(l);XS(E)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XS(E)::QAB(A)
- S(h);OGATE,XS(E)::QAB(A)
- P(e);XP(B)::S(E),XS(h)
- S(b);N_GUARD::QAB(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).