MESON Chess Problem Database
Problem Display
PID: 232709 (3R4/Kp1N3n/p2q4/5p2/6pQ/3k1P2/rrR1bP2/BB5n w - - 0 1)
Frohlich, Georg
Freie Presse, 1978
#2
9 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Sc5#
- 2.Se5#
- 1...Qa3
- 2.Sc5#
- 2.Se5#
- 1...Qg3
- 2.Sc5#
- 2.Se5#
- 1...Qb4
- 2.Sc5#
- 2.Se5#
- 1...Qf4
- 2.Sc5#
- 2.Se5#
- 1...Qc5+
- 2.Sxc5#
- 1...Qe5
- 2.Sc5#
- 2.Sxe5#
- 1...Qc7
- 2.Sc5#
- 2.Se5#
- 1...Qe7
- 2.Sc5#
- 2.Se5#
- 1...Qb8+
- 2.Sxb8#
- 1...Qf8
- 2.Sc5#
- 2.Se5#
- 2.Sxf8#
- 1...Qd4+
- 2.Sc5#
- 1...Qb6+
- 2.Sxb6#
- 1...Qc6
- 2.Sc5#
- 2.Se5#
- 1...Qe6
- 2.Sc5#
- 2.Se5#
- 1...Qf6
- 2.Sc5#
- 2.Se5#
- 2.Sxf6#
- 1...Qg6
- 2.Sc5#
- 2.Se5#
- 2.Sf6#
- 1...Qh6
- 2.Sc5#
- 2.Se5#
- 2.Sf6#
- 1...Qxd7
- 2.Rxd7#
- 1...Rb3
- 2.Sc5#
- 2.Se5#
- 1...Rb4
- 2.Sc5#
- 2.Se5#
- 1...Rb6
- 2.Sc5#
- 2.Se5#
- 1...gxf3
- 2.Sc5#
- 2.Se5#
- 2.Qc4#
- 1...g3
- 2.Sc5#
- 2.Se5#
- 2.Qc4#
- 1...Qh2
- Tries
- 1.Qf6?
- threat
- 2.Sc5#
- 2.Qc3#
- 2.Qxd6#
- 1...Qc5+
- 2.Sxc5#
- 1...Qb8+
- 2.Sxb8#
- 1...Qd4+
- 2.Sc5#
- 1...Qb6+
- 2.Sxb6#
- 1...Qxf6
- 2.Sc5#
- 2.Se5#
- 2.Sxf6#
- 1...Qxd7
- 2.Rxd7#
- 2.Qc3#
- 1...Rxb1
- 2.Qc3#
- 2.Qxf5#
- 1...Rxc2
- 2.Qc3#
- 1...Bxf3
- 2.Sc5#
- 1...Sxf2
- 2.Qc3#
- 1...gxf3
- 2.Sc5#
- 1...Qe5
- 2.Sc5#
- 2.Sxe5#
- 1...Qh2
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 1...Qa3
- 2.Sc5#
- 2.Se5#
- 1...Qg3
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 1...Qb4
- 2.Sc5#
- 2.Se5#
- 1...Qf4
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 1...Qc7
- 2.Sc5#
- 2.Se5#
- 1...Qe7
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 1...Qf8
- 2.Sc5#
- 2.Se5#
- 2.Sxf8#
- 2.Qc3#
- 1...Qd5
- 2.Sc5#
- 2.Qc3#
- 1...Qc6
- 2.Sc5#
- 2.Se5#
- 1...Qe6
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 1...Ra3
- 2.Sc5#
- 2.Qxd6#
- 1...Ra4
- 2.Sc5#
- 2.Qc3#
- 1...Ra5
- 2.Qc3#
- 1...Rb3
- 2.Sc5#
- 2.Se5#
- 2.Qxf5#
- 2.Qxd6#
- 1...Rb4
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 1...Rb5
- 2.Qc3#
- 1...Rb6
- 2.Sc5#
- 2.Se5#
- 2.Qc3#
- 2.Qxf5#
- 1...b6
- 2.Qc3#
- 2.Qxd6#
- 1...Sxf6!
- threat
- 1.Qf6?
- Keys
- 1.Qh6!
- threat
- 2.Qd2#
- 2.Qe3#
- 2.Qxd6#
- 1...Qc5+
- 2.Sxc5#
- 1...Qb8+
- 2.Sxb8#
- 1...Qd4+
- 2.Sc5#
- 1...Qb6+
- 2.Sxb6#
- 1...Kd4
- 2.Qxd6#
- 1...Qxh6
- 2.Sc5#
- 2.Se5#
- 2.Sf6#
- 1...Qxd7
- 2.Rxd7#
- 2.Qd2#
- 2.Qe3#
- 1...Rxb1
- 2.Qd2#
- 1...Rxc2
- 2.Se5#
- 1...Bxf3
- 2.Qe3#
- 1...Sxf2
- 2.Qd2#
- 1...gxf3
- 2.Qe3#
- 1...Qh2
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Qa3
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Qg3
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Qb4
- 2.Sc5#
- 2.Se5#
- 2.Qe3#
- 1...Qf4
- 2.Sc5#
- 2.Se5#
- 1...Qe5
- 2.Sc5#
- 2.Sxe5#
- 2.Qd2#
- 1...Qc7
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Qe7
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 1...Qf8
- 2.Sc5#
- 2.Se5#
- 2.Sxf8#
- 2.Qd2#
- 2.Qe3#
- 1...Qd5
- 2.Qd2#
- 2.Qe3#
- 1...Qc6
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Qe6
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 1...Qf6
- 2.Sc5#
- 2.Se5#
- 2.Sxf6#
- 2.Qd2#
- 2.Qe3#
- 1...Qg6
- 2.Sc5#
- 2.Se5#
- 2.Sf6#
- 2.Qd2#
- 2.Qe3#
- 1...Ra4
- 2.Qd2#
- 2.Qe3#
- 1...Ra5
- 2.Qd2#
- 2.Qe3#
- 1...Rb4
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Rb5
- 2.Qd2#
- 2.Qe3#
- 1...Rb6
- 2.Sc5#
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Sg5
- 2.Qxd6#
- 1...Sf6
- 2.Qd2#
- 2.Qe3#
- 1...f4
- 2.Qxd6#
- threat
- 1.Qh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- Q(i);CHECK::R(I)+S(H),DCHECK,XQ(i)
- Q(i);CHECK::R(I)+S(H),XQ(i)
- Q(i);CHECK::S(H)
- Q(i);OGATE,P_SPINQ(i),XS(H)::R(I),XQ(i)
- Tries
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(i);CHECK::R(I)+S(H),DCHECK,XQ(i)
- Q(i);CHECK::R(I)+S(H),XQ(i)
- Q(i);CHECK::S(H)
- R(c);P_SPINR(c),XR(C)::QAR1(F)
- B(d);XP(E)::S(H)
- S(a);XP(D)::QAR1(F)
- P(f);XP(E)::S(H)
- R(b);::QAR1(F)
- R(c);::QAR1(F)
- Refutation
- S(k);XQ(F)
- Try
- Actual
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(i);CHECK::R(I)+S(H),DCHECK,XQ(i)
- Q(i);CHECK::R(I)+S(H),XQ(i)
- Q(i);CHECK::S(H)
- K(e);P-FLIGHT,P_SPINR(c)::QAR2(F),XQ(i)
- R(c);XB(B)::QAR1(F)
- R(c);P_SPINR(c),XR(C)::S(H)
- B(d);XP(E)::QAR1(F)
- S(a);XP(D)::QAR1(F)
- P(f);XP(E)::QAR1(F)
- S(k);::QAR(F),XQ(i)
- P(g);::QAR(F),XQ(i)
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).