MESON Chess Problem Database
Problem Display
PID: 158613 (nb3N2/8/7q/2R1pQ1p/pP1kp3/8/KR3Pb1/1B6 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schach-Echo, 1963
#2
8 + 9
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Se6#
- 1...Qd2
- 2.Se6#
- 2.Rxd2#
- 1...Qe3
- 2.Se6#
- 1...Qf4
- 2.Se6#
- 1...Qg5
- 2.Se6#
- 1...Qg7
- 2.Se6#
- 2.Rd2#
- 1...Qxf8
- 2.Rd2#
- 1...Qb6
- 2.Rd2#
- 1...Qc6
- 2.Rd2#
- 1...Qd6
- 2.Rd2#
- 1...Qe6+
- 2.Sxe6#
- 1...Qf6
- 2.Rd2#
- 1...Qg6
- 2.Rd2#
- 1...Qh7
- 2.Se6#
- 2.Rd2#
- 1...Qh8
- 2.Se6#
- 2.Rd2#
- 1...Bf1
- 2.Qxe4#
- 1...Bh3
- 2.Qxe4#
- 1...Ba7
- 2.Qxe5#
- 1...Sc7
- 2.Qxe5#
- 1...e3
- 2.Qd3#
- 1...Qc1
- Tries
- 1.Qe6?
- threat
- 2.Rc4#
- 2.Qc4#
- 2.Qd5#
- 1...Qxe6+
- 2.Sxe6#
- 1...Qc1
- 2.Qd5#
- 1...Bf1
- 2.Qd5#
- 1...Sc7
- 2.Rc4#
- 2.Qc4#
- 2.Qxe5#
- 1...e3
- 2.Rc4#
- 2.Qc4#
- 1...Sb6!
- threat
- 1.Qg6?
- threat
- 2.Se6#
- 1...Qxf8
- 2.Rd2#
- 1...Qxg6
- 2.Rd2#
- 1...Bh3
- 2.Qxe4#
- 1...Sc7!
- threat
- 1.Qd7+?
- 1...Qd6
- 2.Se6#
- 2.Rd2#
- 1...Bd6!
- 1...Qd6
- 1.Qg5?
- threat
- 2.Rd2#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxg5
- 2.Se6#
- 1...Qa6
- 2.Qe3#
- 1...e3
- 2.fxe3#
- 1...Bf1!
- threat
- 1.Qf6?
- threat
- 2.Se6#
- 1...Qxf8
- 2.Rd2#
- 1...Qxf6
- 2.Rd2#
- 1...Sc7
- 2.Qxe5#
- 1...Bh3!
- threat
- 1.Qf7?
- threat
- 2.Rc4#
- 2.Qc4#
- 2.Qd5#
- 1...Qe6+
- 2.Sxe6#
- 1...Qa6
- 2.Qd5#
- 1...Qc1
- 2.Se6#
- 2.Qd5#
- 1...Qc6
- 2.Rd2#
- 2.Qc4#
- 1...Qd6
- 2.Rd2#
- 2.Rc4#
- 2.Qc4#
- 1...Bf1
- 2.Qd5#
- 1...Sc7
- 2.Rc4#
- 2.Qc4#
- 1...e3
- 2.Rc4#
- 2.Qc4#
- 1...Sb6!
- threat
- 1.Qe6?
- Keys
- 1.Qf4!
- threat
- 2.Rd2#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxf4
- 2.Se6#
- 1...Qa6
- 2.Qe3#
- 1...Bf1
- 2.Qxe4#
- threat
- 1.Qf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(g);N_GUARD::S(H)
- Q(g);N_GUARD,XS(H)::R(C)
- Q(g);N_GUARD::R(C)
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- B(a);N_GUARD::QAR1(G),XP(d)
- B(i);N_GUARD::QAB1(G),XP(e)
- S(h);S_CUTB(i)::QAB1(G),XP(e)
- P(d);OGATE::QAR1(G)
- Tries
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- Q(g);CHECK,XQ(G)::S(H),XQ(g)
- Q(g);::QAR1(G)
- B(a);::QAR1(G)
- Refutation
- S(h);
- Try
- Q(G);
- Threat
- S(H)
- Vars
- Q(g);N_GUARD,XS(H)::R(C)
- Q(g);N_GUARD,XQ(G)::R(C)
- B(a);N_GUARD::QAR1(G),XP(d)
- Refutation
- S(h);
- Try
- Q(G);CHECK
- Refutation
- B(i);P_SPINB(i)
- Try
- Q(G);
- Threat
- R(C)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,XQ(G)::S(H)
- Q(g);N_GUARD::QAB1(G)
- P(d);OGATE::P(D),XP(d)
- Refutation
- B(a);
- Try
- Q(G);P_PINP(e)
- Threat
- S(H)
- Vars
- Q(g);N_GUARD,XS(H)::R(C)
- Q(g);N_GUARD,N_SPINP(e),XQ(G)::R(C)
- S(h);S_CUTB(i)::QAB1(G),XP(e)
- Refutation
- B(a);
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);::QAR1(G)
- B(a);::QAR1(G)
- Refutation
- S(h);
- Try
- Actual
- Q(G);P_PINP(d)
- Threat
- R(C)
- Vars
- Q(g);CHECK,N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,N_SPINP(d),XQ(G)::S(H)
- Q(g);N_GUARD::QAB1(G)
- B(a);N_GUARD::QAR1(G),XP(d)
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).