MESON Chess Problem Database
Problem Display
PID: 6968 (8/6p1/6pb/1p2N1R1/1Q1nKN1k/4n3/8/8 w - - 0 1)
Wurzburg, Otto
Correspondence Chess League of USA, 1935
#2
5 + 7
| 3325 | Wurzburg Artistry | 1974 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kxg5
- 2.Qe7#
- 1...Bxg5
- 2.Qe1#
- 1...Sd1
- 2.Rg4#
- 1...Sf1
- 2.Rg4#
- 1...Sec2
- 2.Rg4#
- 1...Sg2
- 2.Rg4#
- 1...Sc4
- 2.Rg4#
- 1...Sg4
- 2.Rxg4#
- 1...Sd5
- 2.Rg4#
- 1...Sef5
- 2.Rg4#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sdf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Kxg5
- Tries
- 1.Kd3?
- 1...Bxg5
- 2.Qe1#
- 1...Sg4
- 2.Rxg4#
- 1...Sd1
- 2.Rg4#
- 1...Sf1
- 2.Rg4#
- 1...Sec2
- 2.Rg4#
- 1...Sg2
- 2.Rg4#
- 1...Sc4
- 2.Rg4#
- 1...Sd5
- 2.Rg4#
- 1...Sef5
- 2.Rg4#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sdf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Kxg5!
- 1...Bxg5
- 1.Rh5+?
- 1...Kg3
- 2.Qe1#
- 1...gxh5!
- 1...Kg3
- 1.Rxg6?
- threat
- 2.Qe1#
- 1...Sg4
- 2.Rxg4#
- 1...Sd1
- 2.Rg4#
- 1...Sf1
- 2.Rg4#
- 1...Sec2
- 2.Rg4#
- 1...Sg2
- 2.Rg4#
- 1...Sef5
- 2.Rg4#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sdf5
- 2.Sf3#
- 1...Bxf4!
- threat
- 1.Qc5?
- threat
- 2.Sexg6#
- 1...Kxg5
- 2.Qe7#
- 1...Sg4
- 2.Rxg4#
- 1...Sd5
- 2.Rg4#
- 1...Sef5
- 2.Rg4#
- 1...Sdf5
- 2.Sf3#
- 1...Bxg5!
- threat
- 1.Qe7?
- threat
- 2.Sexg6#
- 2.Rg4#
- 1...Sg4
- 2.Rxg4#
- 1...Bxg5!
- threat
- 1.Qxd4?
- threat
- 2.Sf3#
- 1...Kxg5
- 2.Qd8#
- 1...Sg4
- 2.Rxg4#
- 1...Bxg5!
- threat
- 1.Kd3?
- Keys
- 1.Qa5!
- 1...Kxg5
- 2.Qd8#
- 1...Bxg5
- 2.Qe1#
- 1...Sg4
- 2.Rxg4#
- 1...b4
- 2.Sexg6#
- 1...Sd1
- 2.Rg4#
- 1...Sf1
- 2.Rg4#
- 1...Sec2
- 2.Rg4#
- 1...Sg2
- 2.Rg4#
- 1...Sc4
- 2.Rg4#
- 1...Sd5
- 2.Rg4#
- 1...Sef5
- 2.Rg4#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sdf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Kxg5
- 1.Qa5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- B(f);SBLOCK,XR(E)::QAB(A)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- B(f);SBLOCK,XR(E)::QAB(A)
- S(a);N_GUARD::R1(E),XS(a)
- S(a);N_GUARD::R1(E)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- R(E);CHECK
- Vars
- K(c);S_FLIGHT::QAB(A)
- Refutation
- P(e);XR(E)
- Try
- R(E);XP(e)
- Threat
- QAB(A)
- Vars
- S(a);N_GUARD::R1(E),XS(a)
- S(a);N_GUARD::R1(E)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- Refutation
- B(f);XS(C)
- Try
- Q(A);
- Threat
- S(D),XP(e)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- S(a);N_GUARD::R1(E),XS(a)
- S(a);N_GUARD::R1(E)
- S(b);N_GUARD::S(D)
- Refutation
- B(f);XR(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(a);::QAB(A)+R(E),DCHECK,XS(a)
- Refutation
- B(f);P_SPINB(f),XR(E)
- Try
- Q(A);XS(b)
- Threat
- S(D)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- S(a);N_GUARD::R1(E),XS(a)
- Refutation
- B(f);XR(E)
- Try
- Actual
- Q(A);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- B(f);SBLOCK,XR(E)::QAB(A)
- S(a);N_GUARD::R1(E),XS(a)
- P(d);::S(D),XP(e)
- S(a);N_GUARD::R1(E)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(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).