MESON Chess Problem Database
Problem Display
PID: 244401 (7b/K1Q5/1p3nr1/R2P1p1p/1P1kN2B/7q/bN1P4/4R2n w - - 0 1)
Dittrich, Stefan
Revista Romana de Sah, 1980
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Qc3#
- 1...Qg2
- 2.Qc3#
- 1...Qg4
- 2.Qc3#
- 1...Qh2
- 2.Qc3#
- 1...Qc3
- 2.Qxc3#
- 2.dxc3#
- 1...Qxh4
- 2.Qc3#
- 1...Rg7
- 2.Bxf6#
- 1...Sg3
- 2.Qc3#
- 1...Qf1
- Tries
- 1.Sg3?
- threat
- 2.Qe5#
- 2.Qxb6#
- 2.Qc3#
- 1...Qxg3
- 2.Qxb6#
- 1...Rxg3
- 2.Qe5#
- 2.Qxb6#
- 1...bxa5
- 2.Qe5#
- 2.Qc5#
- 1...b5
- 2.Qe5#
- 2.Qc5#
- 1...Rg7
- 2.Bxf6#
- 1...Bc4
- 2.Qe5#
- 2.Qxb6#
- 2.Qxc4#
- 1...Se4
- 2.Se2#
- 1...Sg4
- 2.Sxf5#
- 2.Qf4#
- 2.Qc3#
- 1...Sd7
- 2.Qf4#
- 2.Qc3#
- 1...Sh7
- 2.Qf4#
- 2.Qc3#
- 1...Se8
- 2.Qf4#
- 2.Qc3#
- 1...Sg8
- 2.Qf4#
- 2.Qc3#
- 1...Sxd5!
- threat
- 1.Sxf6?
- threat
- 2.Qf4#
- 2.Qe5#
- 2.Qxb6#
- 1...Qxh4
- 2.Qe5#
- 2.Qxb6#
- 2.Qc3#
- 1...Rxf6
- 2.Qf4#
- 2.Qe5#
- 1...Bxd5
- 2.Rxd5#
- 2.Qe5#
- 2.Qxb6#
- 1...Bxf6
- 2.Qf4#
- 2.Qxb6#
- 1...bxa5
- 2.Qf4#
- 2.Qe5#
- 2.Qb6#
- 2.Qc5#
- 1...Qf1
- 2.Qe5#
- 2.Qxb6#
- 2.Qc3#
- 1...Qg2
- 2.Qe5#
- 2.Qxb6#
- 2.Qc3#
- 1...Qg4
- 2.Qe5#
- 2.Qxb6#
- 2.Qc3#
- 1...Qh2
- 2.Qxb6#
- 2.Qc3#
- 1...Qc3
- 2.Qf4#
- 2.Qe5#
- 2.Qxc3#
- 2.dxc3#
- 1...Qd3
- 2.Qe5#
- 2.Qxb6#
- 1...Qe3
- 2.dxe3#
- 1...Qf3
- 2.Qe5#
- 2.Qxb6#
- 1...Qg3
- 2.Qxb6#
- 1...Rg4
- 2.Qe5#
- 2.Qxb6#
- 1...Bb1
- 2.Qe5#
- 2.Qxb6#
- 2.Qc4#
- 1...Sf2
- 2.Qe5#
- 2.Qxb6#
- 1...Sg3
- 2.Qe5#
- 2.Qxb6#
- 2.Qc3#
- 1...f4
- 2.Re4#
- 2.Qxf4#
- 2.Qe5#
- 2.Qxb6#
- 1...b5
- 2.Qf4#
- 2.Qe5#
- 2.Qb6#
- 2.Qc5#
- 1...Rg7!
- threat
- 1.Sg3?
- Keys
- 1.Sc3!
- threat
- 2.Qe5#
- 2.Qxb6#
- 1...Qxc3
- 2.Qe5#
- 2.Qxc3#
- 2.dxc3#
- 1...Sxd5
- 2.Sb5#
- 1...bxa5
- 2.Qe5#
- 2.Qb6#
- 2.Qc5#
- 1...Qh2
- 2.Qxb6#
- 1...Qe3
- 2.dxe3#
- 1...Qg3
- 2.Qxb6#
- 1...Rg7
- 2.Bxf6#
- 1...Se4
- 2.Se2#
- 1...Sg4
- 2.Qf4#
- 1...Sd7
- 2.Qf4#
- 1...Sh7
- 2.Qf4#
- 1...Se8
- 2.Qf4#
- 1...Sg8
- 2.Qf4#
- 1...b5
- 2.Qe5#
- 2.Qb6#
- 2.Qc5#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 5
- Sets
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD,XB(F)::QAB1(J)
- R(i);N_GUARD,P_PINQ(J),S_CUTB(j)::B(F),XS(h)
- S(a);S_CUTQ(c)::QAB1(J)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(c);XS(E)::QAB(J),XP(g)
- R(i);N_GUARD,P_PINQ(J),S_CUTB(j)::B(F),XS(h)
- S(h);SBLOCK::S(E)
- Refutation
- S(h);XP(H)
- Try
- S(E);XS(h)
- Threat
- DUALS(3)
- Vars
- Q(c);OGATE::P(C),XQ(c)
- Q(c);::QAB(J),XP(g)
- Refutation
- R(i);P_PINQ(J)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- S(h);SBLOCK,XP(H)::S(E)
- Q(c);::QAB(J),XP(g)
- Q(c);OGATE::P(C),XQ(c)
- R(i);N_GUARD,P_PINQ(J),S_CUTB(j)::B(F),XS(h)
- S(h);SBLOCK::S(E)
- S(h);N_GUARD::QAR2(J)
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).