MESON Chess Problem Database
Problem Display
PID: 4659 (5Q2/5B1k/6r1/6p1/6N1/6K1/8/8 w - - 0 1)
Loyd, Sam
Sunny South, 1885
#2
4 + 3
| 5206 | Sam Loyd and His Chess Problems | 1913 |
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
| 2838 | Fun with Chess Miniatures | 1996 |
| 3310 | 2345 Chess Problems | 1997 |
| 136 | Problem Observer | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Sxf6#
- 2.Qg8#
- 1...Rh6
- 2.Qxh6#
- 2.Qg8#
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra6
- Tries
- 1.Kf2?
- 1...Rf6+
- 2.Sxf6#
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rh6
- 2.Qxh6#
- 2.Qg8#
- 1...Rg7!
- 1...Rf6+
- 1.Kg2?
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Sxf6#
- 2.Qg8#
- 1...Rh6
- 2.Qxh6#
- 2.Qg8#
- 1...Rg7!
- 1...Rg8
- 1.Kh2?
- 1...Rh6+
- 2.Qxh6#
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Sxf6#
- 2.Qg8#
- 1...Rg7!
- 1...Rh6+
- 1.Kf3?
- 1...Rf6+
- 2.Sxf6#
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rh6
- 2.Qxh6#
- 2.Qg8#
- 1...Rg7!
- 1...Rf6+
- 1.Kh3?
- 1...Rh6+
- 2.Qxh6#
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Sxf6#
- 2.Qg8#
- 1...Rg7!
- 1...Rh6+
- 1.Bg8+?
- 1...Rxg8
- 2.Qh6#
- 1...Kh8!
- 1...Rxg8
- 1.Qb8?
- 1...Kg7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Qg8#
- 1...Rh6
- 2.Qg8#
- 1...Rg7!
- 1...Kg7
- 1.Qc8?
- 1...Kg7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Qg8#
- 1...Rh6
- 2.Qg8#
- 1...Rg7!
- 1...Kg7
- 1.Qd8?
- 1...Kg7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Qg8#
- 1...Rh6
- 2.Qg8#
- 1...Rg7!
- 1...Kg7
- 1.Qe8?
- 1...Kg7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Qg8#
- 1...Rh6
- 2.Qg8#
- 1...Rg7!
- 1...Kg7
- 1.Kf2?
- Keys
- 1.Qa8!
- 1...Kg7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Rg7
- 2.Qh1#
- 1...Ra6
- 2.Qg8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Rd6
- 2.Qg8#
- 1...Re6
- 2.Qg8#
- 1...Rf6
- 2.Qg8#
- 1...Rh6
- 2.Qg8#
- 1...Kg7
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB1(D)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- R(b);CHECK,N_GUARD::S(B),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- K(A);P-FLIGHT
- Vars
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- K(A);S_FLIGHT
- Vars
- R(b);CHECK,N_GUARD::QAR1(D),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- K(A);P-FLIGHT
- Vars
- R(b);CHECK,N_GUARD::S(B),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- K(A);P-FLIGHT
- Vars
- R(b);CHECK,N_GUARD::QAR1(D),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- B(C);CHECK
- Vars
- R(b);SBLOCK,XB(C)::QAR1(D)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(D);
- Vars
- K(c);P-FLIGHT::QAR1(D)
- R(b);N_GUARD::QAB1(D),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- Q(D);
- Vars
- K(c);P-FLIGHT::QAR1(D)
- R(b);N_GUARD::QAB1(D),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- Q(D);
- Vars
- K(c);P-FLIGHT::QAR1(D)
- R(b);N_GUARD::QAB1(D),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- Q(D);
- Vars
- K(c);P-FLIGHT::QAR1(D)
- R(b);N_GUARD::QAB1(D),XR(b)
- R(b);N_GUARD::QAB1(D)
- Refutation
- R(b);
- Try
- Actual
- Q(D);
- Vars
- K(c);P-FLIGHT::QAR1(D)
- R(b);N_GUARD::QAB1(D),XR(b)
- R(b);N_GUARD,SBLOCK::QAR(D)
- R(b);N_GUARD::QAB1(D)
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).