MESON Chess Problem Database
Problem Display
PID: 208461 (BB6/5KN1/1pP3pp/Rqnk2p1/6Q1/r2P1P2/1pn1N3/3R4 w - - 0 1)
Klein, Laszlo
Deutsche Schachblatter, 1936
#2
11 + 10
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.Qe6#
- 2.Qe4#
- 1...Qa4
- 2.Qe6#
- 2.Qd7#
- 1...Qc4
- 2.Qe6#
- 2.Qd7#
- 2.Qxc4#
- 2.dxc4#
- 1...Qa6
- 2.Qe6#
- 2.Qd7#
- 2.Qe4#
- 1...Qxc6
- 2.Qe6#
- 2.Qd7#
- 2.Qc4#
- 2.Qe4#
- 1...Qb3
- 2.Qe6#
- 2.Qd7#
- 2.Qe4#
- 1...Qb4
- 2.Qe6#
- 2.Qd7#
- 1...Qxa5
- 2.Qc4#
- 1...Ra1
- 2.Sc3#
- 1...Ra2
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Rxd3
- 2.Sc3#
- 1...Ra4
- 2.Sc3#
- 1...Rxa5
- 2.Sc3#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sb3
- 2.Qc4#
- 1...Sxd3
- 2.Rxb5#
- 1...Sa4
- 2.Qc4#
- 1...Sa6
- 2.Qc4#
- 1...Se6
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...h5
- 2.Qxg5#
- 1...Qxd3
- Tries
- 1.Sf5?
- threat
- 2.Se7#
- 1...Sxd3
- 2.Rxb5#
- 1...gxf5
- 2.Qxf5#
- 1...Sb3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sa6
- 2.Qc4#
- 1...Se6
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Se4!
- threat
- 1.Sh5?
- threat
- 2.Sf6#
- 1...Sxd3
- 2.Rxb5#
- 1...gxh5
- 2.Qf5#
- 1...Sb3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sa6
- 2.Qc4#
- 1...Se6
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Se4!
- threat
- 1.Se8?
- threat
- 2.Sf6#
- 1...Sxd3
- 2.Rxb5#
- 1...Sb3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sa6
- 2.Qc4#
- 1...Se6
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Se4!
- threat
- 1.Rxb5?
- threat
- 2.Qe6#
- 2.Qd7#
- 2.Qc4#
- 2.Qe4#
- 1...Rxd3
- 2.Sc3#
- 2.Qe6#
- 2.Qe4#
- 1...Rxa8
- 2.Qe6#
- 2.Qd7#
- 2.Qe4#
- 1...Rc3
- 2.Sxc3#
- 2.Qe6#
- 2.Qd7#
- 2.Qe4#
- 1...Ra4
- 2.Sc3#
- 2.Qe6#
- 2.Qd7#
- 1...Se3
- 2.Qe6#
- 2.Qd7#
- 2.Qd4#
- 2.Qe4#
- 1...Sd4
- 2.Qd7#
- 2.Qxd4#
- 2.Qe4#
- 1...Ra7+!
- threat
- 1.Qf4?
- threat
- 2.Qe5#
- 2.Qd6#
- 1...Qxd3
- 2.Qe4#
- 2.c7#
- 1...Rxd3
- 2.Sc3#
- 1...Sxd3
- 2.Rxb5#
- 1...Se4
- 2.Qe5#
- 1...Sb7
- 2.Qc4#
- 1...Sd7
- 2.Qd6#
- 2.Qc4#
- 1...gxf4!
- threat
- 1.c7+?
- 1...Ke5
- 2.Qg3#
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Kd6
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qc6
- 2.Qe6#
- 1...Sb7!
- 1...Ke5
- 1.Sf5?
- Keys
- 1.Kxg6!
- threat
- 2.Qf5#
- 1...Qxd3+
- 2.Qe4#
- 1...Qxc6+
- 2.Qe6#
- 1...Rxd3
- 2.Sc3#
- 1...Sxd3
- 2.Rxb5#
- 1...Sb7
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Se3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- threat
- 1.Kxg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(d);N_GUARD,XR(F)::QAB1(E)
- R(c);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XR(c)
- R(c);N_GUARD,P_SPINR(c),XP(C)::S(B)
- R(c);N_GUARD,XR(F)::S(B)
- S(b);N_GUARD::QAR1(E)
- S(b);N_GUARD::QAR1(E),XS(b)
- S(e);P_SPINQ(d)::QAB1(E)
- S(e);OGATEB,P_SPINQ(d),P_SPINS(e),XP(C)::R(F),XQ(d)
- P(j);N_GUARD::QAR(E),XP(g)
- Tries
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(e);OGATEB,P_SPINQ(d),P_SPINS(e),XP(C)::R(F),XQ(d)
- P(i);OGATE,XS(I)::QAR2(E),XP(i)
- S(e);P_SPINQ(d)::QAB1(E)
- Refutation
- S(e);P_SPINQ(d)
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(e);OGATEB,P_SPINQ(d),P_SPINS(e),XP(C)::R(F),XQ(d)
- P(i);N_GUARD,XS(I)::QAR2(E)
- S(e);P_SPINQ(d)::QAB1(E)
- Refutation
- S(e);P_SPINQ(d)
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(e);OGATEB,P_SPINQ(d),P_SPINS(e),XP(C)::R(F),XQ(d)
- S(e);P_SPINQ(d)::QAB1(E)
- Refutation
- S(e);P_SPINQ(d)
- Try
- R(F);P_PINS(e),XQ(d)
- Threat
- DUALS(4)
- Refutation
- R(c);CHECK
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,P_SPINR(c),XP(C)::S(B)
- S(e);OGATEB,P_SPINQ(d),P_SPINS(e),XP(C)::R(F),XQ(d)
- S(e);P_SPINQ(d)::QAR1(E)
- S(e);P_SPINQ(d)::QAB1(E)
- Refutation
- P(g);XQ(E)
- Try
- P(G);CHECK
- Vars
- Q(d);P_SPINQ(d),P_SPINS(e)::QAB1(E)
- Refutation
- S(e);P_SPINQ(d),P_SPINS(e)
- Try
- Actual
- K(H);S_FLIGHT,XP(i)
- Threat
- QAR2(E)
- Vars
- Q(d);CHECK,P_SPINQ(d),P_SPINS(e),XP(C)::QAB1(E)
- Q(d);CHECK,P_SPINQ(d),P_SPINS(e),XP(G)::QAB1(E)
- R(c);N_GUARD,P_SPINR(c),XP(C)::S(B)
- S(e);OGATEB,P_SPINQ(d),P_SPINS(e),XP(C)::R(F),XQ(d)
- S(e);P_SPINQ(d)::QAB1(E)
- S(b);N_GUARD::QAR1(E)
- S(b);N_GUARD::QAR1(E),XS(b)
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).