MESON Chess Problem Database
Problem Display
PID: 5052 (8/2N5/4P3/rR1p2n1/r2k4/2R5/1P5N/3nQK1B w - - 0 1)
Blake, Percy Francis
4th Prize, Hampstead and Highgate Express, 1898
(First published on Sat May 14 1898)
#2
9 + 6
| 14867 | BCPS Library | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rxb5
- 2.Sxb5#
- 1...Ra6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Sxb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Sxc3
- 2.Qxc3#
- 1...Se3+
- 2.Qxe3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Sxe6
- 2.Sf3#
- 2.Sxe6#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...Ra1
- Tries
- 1.Bg2?
- 1...Se3+
- 2.Qxe3#
- 1...Rxb5
- 2.Sxb5#
- 1...Sxb2
- 2.Qe3#
- 1...Sxc3
- 2.Qxc3#
- 1...Sxe6
- 2.Sf3#
- 2.Sxe6#
- 1...Se4
- 2.Sf3#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Ra6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Sf2
- 2.Qe3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...Rc4!
- 1...Se3+
- 1.Rxa5?
- threat
- 2.Sb5#
- 2.Rxa4#
- 2.Rxd5#
- 1...Se3+
- 2.Qxe3#
- 1...Sxb2
- 2.Sb5#
- 2.Rxd5#
- 2.Qe3#
- 1...Sxc3
- 2.Qxc3#
- 1...Se4
- 2.Sf3#
- 2.Rxd5#
- 1...Rc4
- 2.Rxd5#
- 1...Ra1
- 2.Sb5#
- 2.Rxd5#
- 1...Ra2
- 2.Sb5#
- 2.Rxd5#
- 1...Ra3
- 2.Sb5#
- 2.Rxd5#
- 1...Rb4
- 2.Rxd5#
- 1...Rxa5!
- threat
- 1.Qh4+?
- 1...Se4
- 2.Sf3#
- 1...Ke5!
- 1...Se4
- 1.Qe2?
- 1...Se3+
- 2.Qxe3#
- 1...Rxb5
- 2.Sxb5#
- 1...Sxb2
- 2.Qe3#
- 1...Sxe6
- 2.Sf3#
- 2.Sxe6#
- 1...Se4
- 2.Sf3#
- 1...Rc4
- 2.Rd3#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Ra6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Sf2
- 2.Qe3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...Sxc3!
- 1...Se3+
- 1.Qe4+?
- 1...Sxe4
- 2.Sf3#
- 1...dxe4!
- 1...Sxe4
- 1.e7?
- 1...Se3+
- 2.Qxe3#
- 1...Rxb5
- 2.Sxb5#
- 1...Sxb2
- 2.Qe3#
- 1...Sxc3
- 2.Qxc3#
- 1...Se4
- 2.Sf3#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Ra6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Sf2
- 2.Qe3#
- 1...Sf3
- 2.Sxf3#
- 2.Se6#
- 1...Sh3
- 2.Sf3#
- 2.Se6#
- 1...Se6
- 2.Sf3#
- 2.Sxe6#
- 1...Sf7
- 2.Sf3#
- 2.Se6#
- 1...Sh7
- 2.Sf3#
- 2.Se6#
- 1...Rc4!
- 1...Se3+
- 1.Bg2?
- Keys
- 1.Qg3!
- 1...Se3+
- 2.Qxe3#
- 1...Rxb5
- 2.Sxb5#
- 1...Sxb2
- 2.Qe3#
- 1...Sxc3
- 2.Qxc3#
- 1...Sxe6
- 2.Sxe6#
- 1...Sf3
- 2.Qf4#
- 1...Rc4
- 2.Rd3#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Ra6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Sf2
- 2.Qe3#
- 1...Sh3
- 2.Qg7#
- 1...Se4
- 2.Sf3#
- 1...Sf7
- 2.Qf4#
- 1...Sh7
- 2.Qf4#
- 1...Se3+
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::R(G)
- R(b);N_GUARD::R(G),XR(b)
- R(d);XR(G)::S(I),XR(d)
- R(d);N_GUARD::R1(G),XP(e)
- S(a);N_GUARD,XP(D)::QAB1(A)
- S(a);N_GUARD::QAB1(A)
- S(a);OGATE,XR(F)::QAB1(A),XS(a)
- S(a);CHECK,N_GUARD::QAB1(A),XS(a)
- S(f);N_GUARD::S(E),XS(f)
- S(f);N_GUARD::S(E)
- Tries
- Try
- B(C);
- Vars
- S(a);CHECK,N_GUARD::QAB1(A),XS(a)
- R(d);XR(G)::S(I),XR(d)
- S(a);N_GUARD,XP(D)::QAB1(A)
- S(a);OGATE,XR(F)::QAB1(A),XS(a)
- S(f);N_GUARD::S(E)
- R(b);N_GUARD::R(G)
- R(b);N_GUARD::R(G),XR(b)
- R(d);N_GUARD::R1(G),XP(e)
- S(a);N_GUARD::QAB1(A)
- S(f);N_GUARD::S(E),XS(f)
- Refutation
- R(b);
- Try
- R(G);XR(d)
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,N_GUARD::QAB1(A),XS(a)
- S(a);OGATE,XR(F)::QAB1(A),XS(a)
- R(b);::R1(G),XP(e)
- Refutation
- R(b);XR(G)
- Try
- Q(A);CHECK
- Vars
- S(f);P_SPINS(f)::S(E)
- Refutation
- K(c);P_SPINP(e),S_FLIGHT
- Try
- Q(A);
- Vars
- S(a);CHECK,N_GUARD::QAB1(A),XS(a)
- R(d);XR(G)::S(I),XR(d)
- S(a);N_GUARD,XP(D)::QAB1(A)
- S(f);N_GUARD::S(E)
- R(b);SBLOCK::R1(F)
- R(b);N_GUARD::R(G)
- R(b);N_GUARD::R(G),XR(b)
- R(d);N_GUARD::R1(G),XP(e)
- S(a);N_GUARD::QAB1(A)
- S(f);N_GUARD::S(E),XS(f)
- Refutation
- S(a);XR(F)
- Try
- Q(A);CHECK
- Vars
- S(f);SBLOCK,XQ(A)::S(E)
- Refutation
- P(e);XQ(A)
- Try
- P(H);
- Vars
- S(a);CHECK,N_GUARD::QAB1(A),XS(a)
- R(d);XR(G)::S(I),XR(d)
- S(a);N_GUARD,XP(D)::QAB1(A)
- S(a);OGATE,XR(F)::QAB1(A),XS(a)
- S(f);N_GUARD::S(E)
- R(b);N_GUARD::R(G)
- R(b);N_GUARD::R(G),XR(b)
- R(d);N_GUARD::R1(G),XP(e)
- S(a);N_GUARD::QAB1(A)
- Refutation
- R(b);
- Try
- Actual
- Q(A);
- Vars
- S(a);CHECK,N_GUARD::QAB1(A),XS(a)
- R(d);XR(G)::S(I),XR(d)
- S(a);N_GUARD,XP(D)::QAB1(A)
- S(a);OGATE,XR(F)::QAB1(A),XS(a)
- S(f);XP(H)::S(I),XS(f)
- S(f);N_GUARD::QAR2(A)
- R(b);SBLOCK::R1(F)
- R(b);N_GUARD::R(G)
- R(b);N_GUARD::R(G),XR(b)
- R(d);N_GUARD::R1(G),XP(e)
- S(a);N_GUARD::QAB1(A)
- S(f);OGATE::QAB(A)
- S(f);N_GUARD,SBLOCK::S(E)
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).