MESON Chess Problem Database
Problem Display
PID: 82141 (5R2/3pP3/2b3NK/1q3P1N/6kP/1p2pnB1/4B3/1Qn4R w - - 0 1)
Ahues, Herbert Siegfried Oskar
Skakbladet, 1970
#2
11 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd3
- 2.Se5#
- 1...Qa4
- 2.Se5#
- 1...Qc4
- 2.Se5#
- 1...Qa6
- 2.Se5#
- 1...Qb4
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qxf5
- 2.Qxf5#
- 1...Qb6
- 2.Se5#
- 1...Qb7
- 2.Se5#
- 1...Be4
- 2.Qxe4#
- 1...Bd5
- 2.Se5#
- 1...d5
- 2.Se5#
- 1...Qd3
- Tries
- 1.Be1?
- threat
- 2.Sf6#
- 1...Qxf5
- 2.Qxf5#
- 1...Qd3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Be4
- 2.Qxe4#
- 1...Sd3!
- threat
- 1.Bf2?
- threat
- 2.Sf6#
- 1...Qxf5
- 2.Qxf5#
- 1...Qd3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Be4
- 2.Qxe4#
- 1...Sd3
- 2.Qg1#
- 1...exf2!
- threat
- 1.Bf4?
- threat
- 2.Sf6#
- 1...Qxf5
- 2.Qxf5#
- 1...Qd3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Sd3
- 2.Qg1#
- 1...Be4!
- threat
- 1.Be5?
- threat
- 2.Sf6#
- 1...Qxe5
- 2.Sxe5#
- 1...Be4
- 2.Qxe4#
- 1...Sd3
- 2.Qg1#
- 1...Qd3!
- threat
- 1.Bc7?
- threat
- 2.Sf6#
- 1...Qxf5
- 2.Qxf5#
- 1...Qd3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Be4
- 2.Qxe4#
- 1...Sd3
- 2.Qg1#
- 1...d6!
- threat
- 1.e8S?
- threat
- 2.Sef6#
- 1...Qxf5
- 2.Qxf5#
- 1...Qd3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Be4
- 2.Qxe4#
- 1...Sd3!
- threat
- 1.Be1?
- Keys
- 1.Bd6!
- threat
- 2.Sf6#
- 1...Qxf5
- 2.Qxf5#
- 1...Qd3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Be4
- 2.Qxe4#
- 1...Sd3
- 2.Qg1#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- B(g);S_CUTQ(f)::S(H)
- P(h);S_CUTQ(f)::S(H)
- Tries
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- Refutation
- S(a);
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- S(a);OGATE::QAR(A)
- Refutation
- P(c);XB(D)
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- S(a);OGATE::QAR(A)
- Refutation
- B(g);
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(f);XB(D)::S(H),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- S(a);OGATE::QAR(A)
- Refutation
- Q(f);
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- S(a);OGATE::QAR(A)
- Refutation
- P(h);
- Try
- P(J);
- Threat
- S(J)
- Vars
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- Refutation
- S(a);
- Try
- Actual
- B(D);
- Threat
- S(G)
- Vars
- Q(f);OGATE,XP(F)::QAB1(A),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::QAR2(A),XB(g)
- S(a);OGATE::QAR(A)
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).