MESON Chess Problem Database
Problem Display
PID: 223092 (q7/1N1n4/2p5/1np5/2k1P3/2Pp1N2/P2P3Q/4K3 w - - 0 1)
Wheeler, Charles Henry
San Francisco Argonaut, 1885
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Sxa5#
- 1...Qb8
- 2.Sa5#
- 1...Qc8
- 2.Sa5#
- 1...Qe8
- 2.Sa5#
- 1...Qf8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 1...Qh8
- 2.Sa5#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Qa5
- Tries
- 1.Qf4?
- threat
- 2.Qf7#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qe8
- 2.Sa5#
- 1...Qf8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Sxc3!
- threat
- 1.Qe5?
- threat
- 2.Qe6#
- 1...Sxe5
- 2.Sxe5#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qe8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 1...Sb6
- 2.Qxc5#
- 1...Sf6
- 2.Qxc5#
- 1...Sf8
- 2.Qxc5#
- 1...Sxc3!
- threat
- 1.Qh3?
- threat
- 2.Qe6#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qe8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Sxc3!
- threat
- 1.Qh5?
- threat
- 2.Qf7#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qe8
- 2.Sa5#
- 1...Qf8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 2.Qxc5#
- 1...Sf6
- 2.Se5#
- 2.Qxc5#
- 1...Sf8
- 2.Se5#
- 2.Qxc5#
- 1...Sxc3!
- threat
- 1.Qh6?
- threat
- 2.Qe6#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qe8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Sxc3!
- threat
- 1.Qh7?
- threat
- 2.Qf7#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qe8
- 2.Sa5#
- 1...Qf8
- 2.Sa5#
- 1...Qg8
- 2.Sa5#
- 2.Qxg8#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Sxc3!
- threat
- 1.Qf4?
- Keys
- 1.Qb8!
- 1...Qxb7
- 2.Qg8#
- 1...Qxa2
- 2.Qg8#
- 1...Qxb8
- 2.Sa5#
- 1...Sxc3
- 2.Sd6#
- 1...Sxb8
- 2.Se5#
- 1...Sa3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sa5#
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Qa3
- 2.Qg8#
- 1...Qa4
- 2.Qg8#
- 1...Qa5
- 2.Sxa5#
- 2.Qg8#
- 1...Qa6
- 2.Qg8#
- 1...Qa7
- 2.Qg8#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Qxb7
- 1.Qb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD::S(H)
- Q(g);N_GUARD,P_PINP(G)::S(H)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- Tries
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD,P_PINP(G)::S(H)
- Q(g);N_GUARD::S(H)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- Refutation
- S(c);XP(E)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(f);XQ(D)::S(F),XS(f)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD::S(H)
- S(f);N_GUARD::QAR1(D),XP(d)
- Refutation
- S(c);XP(E)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD,P_PINP(G)::S(H)
- Q(g);N_GUARD::S(H)
- S(f);N_GUARD::S(F)
- Refutation
- S(c);XP(E)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD,P_PINP(G)::S(H)
- Q(g);N_GUARD::S(H)
- S(f);N_GUARD::S(F),XS(f)
- Refutation
- S(c);XP(E)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD,P_PINP(G)::S(H)
- Q(g);N_GUARD::S(H)
- S(f);N_GUARD::S(F)
- Refutation
- S(c);XP(E)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD,P_PINP(G)::S(H)
- Q(g);N_GUARD::S(H)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- Refutation
- S(c);XP(E)
- Try
- Actual
- Q(D);
- Vars
- Q(g);N_GUARD,XS(H)::QAB(D)
- Q(g);N_GUARD,XP(B)::QAB(D)
- Q(g);N_GUARD,XQ(D)::S(H)
- S(c);N_GUARD,XP(E)::S(H)
- S(f);N_GUARD,XQ(D)::S(F)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- Q(g);N_GUARD::QAB(D)
- S(f);N_GUARD::S(F),XS(f)
- S(f);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).