MESON Chess Problem Database
Problem Display
PID: 224269 (8/2R3R1/2pB1pP1/2n1p1p1/2B1k1p1/2Q3K1/8/8 w - - 0 1)
Robbins, Alexander Henry
A Collection of Chess Problems, 1887
#2
7 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- Tries
- 1.Kxg4?
- 1...Sd3
- 2.Qxd3#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...f5+!
- 1...Sd3
- 1.Rxc6?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Ra7?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Rb7?
- 1...Sxb7
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sxb7
- 1.Rcd7?
- 1...Sxd7
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Kf5!
- 1...Sxd7
- 1.Rce7?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Rc8?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Rgd7?
- 1...Sxd7
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Kf5!
- 1...Sxd7
- 1.Rge7?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Rgf7?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Rh7?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Rg8?
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5!
- 1...Sd3
- 1.Qc2+?
- 1...Ke3
- 2.Bxc5#
- 1...Sd3
- 2.Qxd3#
- 1...Kd4!
- 1...Ke3
- 1.Kxg4?
- Keys
- 1.Rcf7!
- 1...Kf5
- 2.Qxe5#
- 1...Sd3
- 2.Qxd3#
- 1...f5
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Sa6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sb7
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Kf5
- 1.Rcf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAB1(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- Tries
- Try
- K(B);P-FLIGHT,XP(b)
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- Refutation
- P(g);CHECK
- Try
- R(F);XP(f)
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(F);
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(F);
- Vars
- S(c);N_GUARD,XR(F)::QAB1(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(F);
- Vars
- S(c);N_GUARD,XR(F)::QAB1(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(F);P_PINP(d)
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- S(c);N_GUARD,N_SPINP(d)::QAB1(A)
- Refutation
- K(a);N_SPINP(d),S_FLIGHT
- Try
- R(F);
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(G);
- Vars
- S(c);N_GUARD,XR(G)::QAB1(A)
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(G);P_PINP(d)
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- S(c);N_GUARD,N_SPINP(d)::QAB1(A)
- Refutation
- K(a);N_SPINP(d),S_FLIGHT
- Try
- R(G);
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);P_SPINP(g),S_FLIGHT
- Try
- R(G);
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(G);
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(a);P-FLIGHT::B(D),XS(c)
- S(c);N_GUARD,P_SPINS(c)::QAB1(A),XS(c)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- R(F);
- Vars
- K(a);P_SPINP(g),S_FLIGHT::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(A),XS(c)
- P(g);N_GUARD::QAR1(A),XP(d)
- S(c);N_GUARD::QAB1(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).