MESON Chess Problem Database
Problem Display
PID: 12308 (3Q1Rn1/2q5/1pN3B1/3bpN2/4pBkP/R5Pn/7K/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
5th Prize, Schach-Echo, 1977
#2
10 + 8
| 5395 | Schach fur Nussknacker | 1994 |
| 133 | The Problemist Supplement | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxd8
- 2.Sxe5#
- 1...Qa7
- 2.Sxe5#
- 1...Qb7
- 2.Sxe5#
- 1...Qd7
- 2.Sxe5#
- 1...Qf7
- 2.Sxe5#
- 1...Qh7
- 2.Sxe5#
- 1...Qc8
- 2.Sxe5#
- 1...Ba2
- 2.Qd1#
- 1...Bxc6
- 2.Qd1#
- 1...Be6
- 2.Qd1#
- 1...Bf7
- 2.Qd1#
- 1...Sg1
- 2.Qg5#
- 1...Sf2
- 2.Qg5#
- 1...Sxf4
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf6
- 2.Sh6#
- 1...Sh6
- 2.Sxh6#
- 1...Se7
- 2.Sh6#
- 1...Qxd8
- Tries
- 1.Sg7?
- threat
- 2.Bf5#
- 2.Bh5#
- 1...Sxf4
- 2.Bf5#
- 2.Qg5#
- 1...Bb3
- 2.Bh5#
- 1...e3
- 2.Bh5#
- 1...Qd7
- 2.Sxe5#
- 2.Bh5#
- 1...Qf7
- 2.Sxe5#
- 1...Qc8
- 2.Sxe5#
- 2.Bh5#
- 1...Be6
- 2.Bh5#
- 2.Qd1#
- 1...Bf7
- 2.Bf5#
- 2.Qd1#
- 1...Sf6
- 2.Bf5#
- 1...Sh6
- 2.Bh5#
- 1...Se7
- 2.Bh5#
- 1...Qxg7!
- threat
- 1.Bd2?
- threat
- 2.Se3#
- 1...e3
- 2.Sxe3#
- 1...Qf7
- 2.Sxe5#
- 1...Sf4
- 2.Qg5#
- 1...Sf6
- 2.Sh6#
- 1...Bf7!
- threat
- 1.Bxe5?
- threat
- 2.Se3#
- 1...e3
- 2.Sxe3#
- 1...Bf7
- 2.Qd1#
- 1...Sf4
- 2.Qg5#
- 1...Sf6
- 2.Sh6#
- 1...Qf7!
- threat
- 1.Bg5?
- threat
- 2.Se3#
- 1...e3
- 2.Sxe3#
- 1...Qf7
- 2.Sxe5#
- 1...Bf7
- 2.Qd1#
- 1...Sf6
- 2.Sh6#
- 1...Sf4!
- threat
- 1.Bh6?
- threat
- 2.Se3#
- 1...e3
- 2.Sxe3#
- 1...Qf7
- 2.Sxe5#
- 1...Bf7
- 2.Qd1#
- 1...Sf4
- 2.Qg5#
- 1...Sf6!
- threat
- 1.Qxc7?
- threat
- 2.Sxe5#
- 1...exf4
- 2.Se5#
- 1...Bxc6!
- threat
- 1.Sg7?
- Keys
- 1.Bc1!
- threat
- 2.Se3#
- 1...e3
- 2.Sxe3#
- 1...Qf7
- 2.Sxe5#
- 1...Bf7
- 2.Qd1#
- 1...Sf4
- 2.Qg5#
- 1...Sf6
- 2.Sh6#
- threat
- 1.Bc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(g);N_GUARD,XQ(I)::S(G),XP(e)
- Q(g);N_GUARD::S(G),XP(e)
- B(d);OGATE::QAB(I)
- B(d);OGATE,XS(G)::QAB(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD,XB(D)::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(d);::B(H)
- P(b);::B(H)
- Q(g);N_GUARD::S(G),XP(e)
- S(h);::B(H)
- Refutation
- Q(g);XS(F)
- Try
- B(D);
- Threat
- S(F)
- Vars
- P(b);::S(F),XP(b)
- Q(g);N_GUARD::S(G),XP(e)
- S(a);N_GUARD::QAR1(I)
- S(h);N_GUARD::S(F)
- Refutation
- B(d);
- Try
- B(D);XP(e)
- Threat
- S(F)
- Vars
- P(b);::S(F),XP(b)
- B(d);OGATE::QAB(I)
- S(a);N_GUARD::QAR1(I)
- S(h);N_GUARD::S(F)
- Refutation
- Q(g);
- Try
- B(D);
- Threat
- S(F)
- Vars
- P(b);::S(F),XP(b)
- Q(g);N_GUARD::S(G),XP(e)
- B(d);OGATE::QAB(I)
- S(h);N_GUARD::S(F)
- Refutation
- S(a);
- Try
- B(D);
- Threat
- S(F)
- Vars
- P(b);::S(F),XP(b)
- Q(g);N_GUARD::S(G),XP(e)
- B(d);OGATE::QAB(I)
- S(a);N_GUARD::QAR1(I)
- Refutation
- S(h);
- Try
- Q(I);XQ(g)
- Threat
- S(G),XP(e)
- Vars
- P(e);XB(D)::S(G)
- Refutation
- B(d);XS(G)
- Try
- Actual
- B(D);
- Threat
- S(F)
- Vars
- P(b);::S(F),XP(b)
- Q(g);N_GUARD::S(G),XP(e)
- B(d);OGATE::QAB(I)
- S(a);N_GUARD::QAR1(I)
- S(h);N_GUARD::S(F)
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).