MESON Chess Problem Database
Problem Display
PID: 4613 (2RQ4/4pNB1/4r3/2bN4/B1kpp2R/P7/8/2K5 w - - 0 1)
Mackenzie, Arthur Ford
Chess Monthly, 1884
#2
9 + 6
| 2794 | Terms & Themes of Chess Problems | 1907 |
| 3360 | Simple Two-move Themes | 1924 |
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Bb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Kd3
- Tries
- 1.Kd1?
- 1...Kd3
- 2.Bb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Se3+?
- 1...Kc3
- 2.Qxd4#
- 1...dxe3
- 2.Qd4#
- 1...Kd3!
- 1...Kc3
- 1.Sb6+?
- 1...Kc3
- 2.Qxd4#
- 1...Rxb6
- 2.Qxd4#
- 1...Kd3!
- 1...Kc3
- 1.Bh8?
- 1...Kd3
- 2.Bb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Rf4?
- 1...Kd3
- 2.Bb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Rg4?
- 1...Kd3
- 2.Bb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Rxc5+?
- 1...Kd3
- 2.Bb5#
- 1...Kxc5!
- 1...Kd3
- 1.Rc6?
- 1...Kd3
- 2.Bb5#
- 1...Rxc6
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 2.Sb6#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Rc7?
- 1...Kd3
- 2.Bb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Qb6?
- threat
- 2.Qb3#
- 1...Kd3
- 2.Bb5#
- 2.Qb5#
- 1...Kxd5
- 2.Bb3#
- 2.Rxc5#
- 2.Qxc5#
- 2.Qb3#
- 1...Rxb6!
- threat
- 1.Qd7?
- 1...Kd3
- 2.Bb5#
- 2.Qb5#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Rd6!
- 1...Kd3
- 1.Kd1?
- Keys
- 1.Qg8!
- 1...Kd3
- 2.Bb5#
- 1...Kxd5
- 2.Bb3#
- 1...Re5
- 2.Sxe5#
- 1...Ra6
- 2.Se5#
- 1...Rb6
- 2.Se5#
- 1...Rc6
- 2.Se5#
- 1...Rd6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...d3
- 2.Se3#
- 1...e3
- 2.Rxd4#
- 1...Kd3
- 1.Qg8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- S(E);CHECK
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::QAB1(I),XP(b)
- P(b);P_SPINP(c),XS(E)::QAR1(I)
- Refutation
- K(a);N_SPINB(d),P_SPINP(b),S_FLIGHT
- Try
- S(E);CHECK
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::QAB1(I),XP(b)
- R(e);XS(E)::QAR1(I),XP(b)
- Refutation
- K(a);N_SPINB(d),P_SPINP(b),S_FLIGHT
- Try
- B(G);
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- R(D);
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- R(D);
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- R(H);CHECK,XB(d)
- Vars
- K(a);S_FLIGHT::B(C)
- Refutation
- K(a);P-FLIGHT,XR(H)
- Try
- R(H);
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD,N_SPINB(d),XR(H)::S(F)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- R(H);
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- Q(I);
- Threat
- QAB1(I)
- Refutation
- R(e);XQ(I)
- Try
- Q(I);
- Vars
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c)::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
- Refutation
- R(e);
- Try
- Actual
- Q(I);
- Vars
- K(a);N_SPINB(d),S_FLIGHT::B(C)
- K(a);N_SPINB(d),S_FLIGHT,XS(E)::B(C)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD,N_SPINB(d)::S(F)
- P(b);N_GUARD,P_SPINP(c),SBLOCK::S(E)
- P(c);OGATE,P_SPINP(b)::R1(D),XP(b)
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).