MESON Chess Problem Database
Problem Display
PID: 11003 (8/4n2K/8/pNp5/rkB4Q/n1p1N3/8/8 w - - 0 1)
Wurzburg, Otto
American Chess Bulletin, 1936
#2
5 + 7
| 5088 | How to Solve Chess Problems | 1945 |
| 45 | Schach | 1951 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
| 5063 | Spectacular Chess Problems | 1965 |
| 5065 | Chess Problem Gems by Eight Eminent American Composers | 1972 |
| 3325 | Wurzburg Artistry | 1974 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sd5
- 2.Sxd5#
- 1...Sf5
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c2
- 2.Qe1#
- 1...Sb1
- Tries
- 1.Kg7?
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd5
- 2.Sxd5#
- 1...Sc6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c2
- 2.Qe1#
- 1...Sf5+!
- 1...Sxc4
- 1.Kh8?
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd5
- 2.Sxd5#
- 1...Sf5
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c2
- 2.Qe1#
- 1...Sg6+!
- 1...Sxc4
- 1.Sd6?
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sb5
- 2.Sc2#
- 1...c2
- 2.Qe1#
- 1...Sd5
- 2.Sxd5#
- 1...Sf5
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...Sxc4!
- 1...Sb1
- 1.Sa7?
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sb5
- 2.Sc2#
- 1...c2
- 2.Qe1#
- 1...Sd5
- 2.Sxd5#
- 2.Sc6#
- 1...Sf5
- 2.Sd5#
- 2.Sc6#
- 1...Sc6
- 2.Sd5#
- 2.Sxc6#
- 1...Sg6
- 2.Sd5#
- 2.Sc6#
- 1...Sc8
- 2.Sd5#
- 2.Sc6#
- 1...Sg8
- 2.Sd5#
- 2.Sc6#
- 1...Sxc4!
- 1...Sb1
- 1.Sc7?
- threat
- 2.Sa6#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sb5
- 2.Sc2#
- 1...c2
- 2.Qe1#
- 1...Sxc4!
- threat
- 1.Qd4?
- threat
- 2.Qxc3#
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sb1
- 2.Sc2#
- 1...Sd5
- 2.Sxd5#
- 1...c2
- 2.Qb2#
- 2.Qc3#
- 2.Qd2#
- 1...cxd4!
- threat
- 1.Qe4?
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sb1
- 2.Sc2#
- 2.Qxb1#
- 1...Sc2
- 2.Sxc2#
- 1...Sd5
- 2.Sxd5#
- 1...Sf5
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c2!
- 1...Sxc4
- 1.Qf4?
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd5
- 2.Sxd5#
- 1...Sf5
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c2!
- 1...Sxc4
- 1.Qg4?
- 1...Sxc4
- 2.Qxc4#
- 1...Sxb5
- 2.Sc2#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sd5
- 2.Sxd5#
- 1...Sf5
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sc8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c2!
- 1...Sxc4
- 1.Kg7?
- Keys
- 1.Sd4!
- 1...Sxc4
- 2.Sec2#
- 1...cxd4
- 2.Qxe7#
- 1...Sb1
- 2.Sdc2#
- 1...Sc2
- 2.Sdxc2#
- 1...Sb5
- 2.Sdc2#
- 1...c2
- 2.Qe1#
- 1...Sd5
- 2.Sc6#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Sxc4
- 1.Sd4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- P(b);OGATEB::QAB(C)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- P(b);OGATEB::QAB(C)
- Refutation
- S(g);CHECK
- Try
- K(E);P-FLIGHT
- Vars
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- P(b);OGATEB::QAB(C)
- Refutation
- S(g);CHECK
- Try
- S(D);
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(b);OGATEB::QAB(C)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- S(a);P_SPINS(a),XB(B)
- Try
- S(D);
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(b);OGATEB::QAB(C)
- Refutation
- S(a);P_SPINS(a),XB(B)
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(b);OGATEB::QAB(C)
- Refutation
- S(a);P_SPINS(a),XB(B)
- Try
- Q(C);
- Threat
- QAB1(C),XP(b)
- Vars
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(a);N_GUARD::S(A)
- S(g);N_GUARD::S(A),XS(g)
- Refutation
- P(f);XQ(C)
- Try
- Q(C);
- Vars
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- Q(C);
- Vars
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- Q(C);
- Vars
- S(a);OGATE,P_SPINS(a),XB(B)::QAR1(C),XS(a)
- S(a);N_GUARD,XS(D)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- Actual
- S(D);
- Vars
- S(a);N_GUARD,SBLOCK,XB(B)::S(A)
- P(f);OGATEB,XS(D)::QAB(C),XS(g)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- P(b);OGATEB::QAB(C)
- S(g);N_GUARD::S(D)
- S(g);N_GUARD::S(D),XS(g)
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).