MESON Chess Problem Database
Problem Display
PID: 34178 (6r1/4p3/4N1p1/7k/5B2/4PpK1/2Qp1N2/8 w - - 0 1)
Abela de la Torre, Aurelio
La Strategie, 1877
#2
6 + 6
| 5656 | Sammlung Leichterer Schachaufgaben I (Dufresne) | 1881 |
| 20 | De Problemist | 1932 |
| 81 | Chess | 1953 |
SOLUTION
- SOUND
- Sets
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...g5
- 2.Qh7#
- 1...Rg7
- Tries
- 1.Sd1?
- 1...g5
- 2.Qh7#
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...f2!
- 1...g5
- 1.Sd3?
- 1...d1Q
- 2.Qh2#
- 1...d1S
- 2.Qh2#
- 1...d1B
- 2.Qh2#
- 1...d1R
- 2.Qh2#
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...f2
- 2.Qd1#
- 1...g5!
- 1...d1Q
- 1.Se4?
- 1...d1Q
- 2.Qh2#
- 1...d1S
- 2.Qh2#
- 1...d1B
- 2.Qh2#
- 1...d1R
- 2.Qh2#
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...f2
- 2.Qd1#
- 1...g5!
- 1...d1Q
- 1.Sg4?
- 1...d1Q
- 2.Qh2#
- 1...d1S
- 2.Qh2#
- 1...d1B
- 2.Qh2#
- 1...d1R
- 2.Qh2#
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...g5
- 2.Qh7#
- 1...f2!
- 1...d1Q
- 1.Qf5+?
- 1...g5
- 2.Qh7#
- 1...gxf5+!
- 1...g5
- 1.Qxd2?
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...g5!
- 1...Rg7
- 1.Sd1?
- Keys
- 1.Sh1!
- 1...g5
- 2.Qh7#
- 1...d1Q
- 2.Qh2#
- 1...d1S
- 2.Qh2#
- 1...d1B
- 2.Qh2#
- 1...d1R
- 2.Qh2#
- 1...Rg7
- 2.Sxg7#
- 1...Ra8
- 2.Sg7#
- 1...Rb8
- 2.Sg7#
- 1...Rc8
- 2.Sg7#
- 1...Rd8
- 2.Sg7#
- 1...Re8
- 2.Sg7#
- 1...Rf8
- 2.Sg7#
- 1...Rh8
- 2.Sg7#
- 1...f2
- 2.Qd1#
- 1...g5
- 1.Sh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- P(d);OGATE::QAR2(A)
- Tries
- Try
- S(B);
- Vars
- P(d);OGATE::QAR2(A)
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- Refutation
- P(b);
- Try
- S(B);
- Vars
- P(a);OGATE::QAR(A)
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- P(b);OGATEB::QAB(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- P(a);OGATE::QAR(A)
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- P(b);OGATEB::QAB(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- P(a);OGATE::QAR(A)
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- P(d);OGATE::QAR2(A)
- Refutation
- P(b);
- Try
- Q(A);CHECK
- Vars
- P(d);OGATE,P_SPINP(d)::QAR2(A)
- Refutation
- P(d);CHECK,XQ(A)
- Try
- Q(A);XP(a)
- Vars
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- Refutation
- P(d);
- Try
- Actual
- S(B);
- Vars
- P(d);OGATE::QAR2(A)
- P(a);OGATE::QAR(A)
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::S(F)
- P(b);OGATEB::QAB(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).