MESON Chess Problem Database

Problem Display
PID: 141787 (3Q4/npN5/1n6/prb4K/P2R4/1Pk2P2/R4P2/2N5 w - - 0 1)

Lane, Henry Fitzgerald William

3rd Prize, Manchester Weekly Times, 1898

(First published on Fri Apr 8 1898)

3Q4/npN5/1n6/prb4K/P2R4/1Pk2P2/R4P2/2N5

#2

10 + 7

15 British Chess Magazine 1908
14867 BCPS Library 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Se2#
    • 1...Rb4
      • 2.Rd3#
    • 1...Sxa4
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Sd5
      • 2.Rc4#
    • 1...Sd7
      • 2.Rc4#
    • 1...Sa8
      • 2.Rc4#
    • 1...Sbc8
      • 2.Rc4#
    • 1...Sc6
      • 2.Sxb5#
    • 1...Sac8
      • 2.Sxb5#
  • Tries
    • 1.Sd5+?
      • 1...Sxd5
        • 2.Rc4#
      • 1...Kxd4!
    • 1.Qd5?
      • threat
        • 2.Se2#
      • 1...Sxd5
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Bxd4!
  • Keys
    • 1.Qc8!
      • 1...Ba3+
        • 2.Sxb5#
      • 1...Bb4+
        • 2.Sxb5#
      • 1...Bxd4+
        • 2.Sd5#
      • 1...Bd6+
        • 2.Sxb5#
      • 1...Be7+
        • 2.Sxb5#
      • 1...Bf8+
        • 2.Sxb5#
      • 1...Kxd4
        • 2.Qh8#
      • 1...Rxb3
        • 2.Se2#
      • 1...Sxa4
        • 2.Rc4#
      • 1...Sbxc8
        • 2.Rc4#
      • 1...Saxc8
        • 2.Sxb5#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Rb4
        • 2.Rd3#
      • 1...Sd5
        • 2.Rc4#
      • 1...Sd7
        • 2.Rc4#
      • 1...Sa8
        • 2.Rc4#
      • 1...Sc6
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK,XP(D)::S(A)
    • R(c);SBLOCK::R1(G)
    • S(e);N_GUARD,XP(F)::R1(G)
    • S(e);N_GUARD::R1(G),XS(e)
    • S(e);N_GUARD::R1(G)
    • S(f);N_GUARD::S(I),XR(c)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • S(e);XS(I)::R1(G)
      • Refutation
        • K(a);S_FLIGHT,XR(G)
    • Try
      • Q(J);
      • Threat
        • S(A)
      • Vars
        • S(e);N_GUARD,XQ(J)::R1(G)
      • Refutation
        • B(d);P_PINQ(J),XR(G)
  • Actual
    • Q(J);
    • Vars
      • B(d);CHECK::QAR(J)+S(I),DCHECK,XR(c)
      • B(d);CHECK,SBLOCK,XR(G)::QAR(J)+S(I),DCHECK
      • K(a);OGATEB,S_FLIGHT,XR(G)::QAB(J)
      • R(c);SBLOCK,XP(D)::S(A)
      • S(e);N_GUARD,XP(F)::R1(G)
      • S(e);N_GUARD,XQ(J)::R1(G)
      • S(f);N_GUARD,XQ(J)::S(I),XR(c)
      • S(e);N_GUARD::R1(G),XS(e)
      • R(c);SBLOCK::R1(G)
      • S(e);N_GUARD::R1(G)
      • S(f);N_GUARD::S(I),XR(c)
HTML5 logo

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).