MESON Chess Problem Database
Problem Display
PID: 218769 (4nB1q/1B6/Q7/2p1k2N/5pP1/1P6/3KN2b/8 w - - 0 1)
Uhler, Ekkehard
Badische Neueste Nachrichten, 1984
#2
8 + 6
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sd6
- 2.Qxd6#
- 1...Sf6
- 2.Qd6#
- 1...Sc7
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 2.Qf6#
- 1...Sd6
- Tries
- 1.Sg1?
- threat
- 2.Sf3#
- 1...Kd4
- 2.Sf3#
- 2.Qa1#
- 1...Sd6
- 2.Qxd6#
- 1...f3
- 2.Sxf3#
- 1...Bxg1!
- threat
- 1.Shxf4?
- threat
- 2.Sd3#
- 2.Sg6#
- 2.Qa1#
- 2.Qe6#
- 1...Qxf8
- 2.Sd3#
- 2.Sg6#
- 2.Qe6#
- 1...Sd6
- 2.Qa1#
- 2.Qxd6#
- 1...Qf6
- 2.Sd3#
- 2.Qa1#
- 1...Qg7
- 2.Sd3#
- 2.Qa1#
- 2.Qe6#
- 1...Qh3
- 2.Sg6#
- 2.Qe6#
- 1...Qh5
- 2.Sd3#
- 2.Qa1#
- 2.Qe6#
- 1...Qh6
- 2.Qa1#
- 1...Qh7
- 2.Qa1#
- 2.Qe6#
- 1...Qg8
- 2.Sd3#
- 2.Qa1#
- 1...Bg1
- 2.Sd3#
- 2.Sg6#
- 2.Qe6#
- 1...Sc7
- 2.Sd3#
- 2.Sg6#
- 2.Qa1#
- 2.Qd6#
- 1...Sg7
- 2.Sd3#
- 2.Sg6#
- 2.Qa1#
- 2.Qd6#
- 1...c4
- 2.Sg6#
- 2.Qe6#
- 1...Bxf4+!
- threat
- 1.Sg7?
- threat
- 2.Qa1#
- 2.Qe6#
- 1...Qxf8
- 2.Qe6#
- 1...Sxg7
- 2.Qd6#
- 1...Sd6
- 2.Qa1#
- 2.Qxd6#
- 1...Qh3
- 2.Qe6#
- 1...Qh6
- 2.Qa1#
- 1...Qg8
- 2.Qa1#
- 1...Bg1
- 2.Qe6#
- 1...Sc7
- 2.Qa1#
- 2.Qd6#
- 1...c4
- 2.Qe6#
- 1...Qxg7!
- threat
- 1.Bxc5?
- threat
- 2.Bd4#
- 1...Sd6
- 2.Qxd6#
- 1...Bg1!
- threat
- 1.Bg7+?
- 1...Sf6
- 2.Qxf6#
- 1...Sxg7
- 2.Qf6#
- 1...Qxg7!
- 1...Sf6
- 1.Qd3?
- threat
- 2.Qe4#
- 2.Qf5#
- 2.Qd5#
- 1...Ke6
- 2.Qf5#
- 2.Qd5#
- 1...Qxf8
- 2.Qd5#
- 1...Qf6
- 2.Qe4#
- 2.Qd5#
- 1...Qh7
- 2.Qd5#
- 1...Qg8
- 2.Qe4#
- 2.Qf5#
- 1...Sd6
- 2.Qd5#
- 2.Qxd6#
- 1...Sf6
- 2.Qf5#
- 2.Qd6#
- 1...Sc7
- 2.Qe4#
- 2.Qf5#
- 2.Qd6#
- 1...Sg7
- 2.Qe4#
- 2.Qd5#
- 2.Qd6#
- 1...Qxh5!
- threat
- 1.Qc6?
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qxe8#
- 1...Qxf8
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 2.Qxd6#
- 1...Qf6
- 2.Qe4#
- 2.Qd5#
- 1...Qg7
- 2.Qe4#
- 2.Qd5#
- 1...Qh6
- 2.Qe4#
- 2.Qd5#
- 1...Qh7
- 2.Qd5#
- 1...Qg8
- 2.Qe4#
- 1...Sf6
- 2.Qd6#
- 1...Sc7
- 2.Qe4#
- 2.Qd6#
- 1...Sg7
- 2.Qe4#
- 2.Qd5#
- 2.Qd6#
- 2.Qf6#
- 1...Qxh5!
- threat
- 1.Sg1?
- Keys
- 1.Sd4!
- threat
- 2.Sf3#
- 1...Kxd4
- 2.Qa1#
- 1...cxd4
- 2.Qe2#
- 1...Sd6
- 2.Qxd6#
- 1...f3
- 2.Sxf3#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- S(e);N_GUARD::QAB1(F),XS(e)
- S(e);N_GUARD::QAB1(F)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(e);N_GUARD::QAB1(F),XS(e)
- P(b);::S(B),XP(b)
- Refutation
- B(a);XS(B)
- Try
- S(E);XP(b)
- Threat
- DUALS(4)
- Vars
- Q(f);P_PINS(E)::QAB(F)
- Refutation
- B(a);CHECK,XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(f);XB(H)::QAR1(F)
- S(e);N_GUARD,XS(E)::QAB1(F)
- Q(f);::QAR1(F)
- Q(f);::QAB(F)
- B(a);::QAR1(F)
- P(c);::QAR1(F)
- Refutation
- Q(f);XS(E)
- Try
- B(H);XP(c)
- Threat
- B(H)
- Vars
- S(e);N_GUARD::QAB1(F),XS(e)
- Refutation
- B(a);
- Try
- B(H);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB1(F),XS(e)
- S(e);N_GUARD,XB(H)::QAB1(F)
- Refutation
- Q(f);XB(H)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(f);XB(H)::QAR1(F)
- Q(f);::QAR1(F)
- Refutation
- Q(f);XS(E)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(f);XB(H)::QAR1(F)
- Q(f);::QAR1(F)
- S(e);N_GUARD::QAB1(F)
- Refutation
- Q(f);XS(E)
- Try
- Actual
- S(B);
- Threat
- S(B)
- Vars
- K(d);OGATEB,S_FLIGHT,XS(B)::QAB(F)
- P(c);SBLOCK,XS(B)::QAR(F)
- S(e);N_GUARD::QAB1(F),XS(e)
- P(b);::S(B),XP(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).