Problem Display
PID: 31049 (7Q/2R5/3n2B1/3ppn2/3k4/1P3p2/2P2P2/3K2B1 w - - 0 1)

Winter-Wood, Edward John

Sheffield and Rotherham Independent, 1884

(First published on Sat Nov 8 1884)

7Q/2R5/3n2B1/3ppn2/3k4/1P3p2/2P2P2/3K2B1

#2

8 + 6


3392 Chess Souvenirs 1886
15254 EJWW Scrapbook 2011
15351 SCPF/BCPS Black Books 2016

SOLUTION


  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qh4#
    • 1...Se3+
      • 2.fxe3#
    • 1...Sg3
      • 2.c3#
    • 1...Sh4
      • 2.c3#
    • 1...Sh6
      • 2.c3#
    • 1...Se7
      • 2.c3#
    • 1...Sg7
      • 2.c3#
  • Tries
    • 1.Qh4+?
      • 1...Sxh4
        • 2.c3#
      • 1...e4
        • 2.Qf6#
      • 1...Se4!
  • Keys
    • 1.Qd8!
      • 1...Se3+
        • 2.fxe3#
      • 1...Ke4
        • 2.Qh4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Se4
        • 2.Rc4#
      • 1...Sg3
        • 2.c3#
      • 1...Sh4
        • 2.c3#
      • 1...Sh6
        • 2.c3#
      • 1...Se7
        • 2.c3#
      • 1...Sg7
        • 2.c3#
      • 1...Sb5
        • 2.Rc4#
      • 1...Sb7
        • 2.Rc4#
      • 1...Sf7
        • 2.Rc4#
      • 1...Sc8
        • 2.Rc4#
      • 1...Se8
        • 2.Rc4#
      • 1...e4
        • 2.Qf6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(d),P-FLIGHT,P_SPINS(e)::QAR(H)
    • S(e);CHECK,OGATE::P(D),XS(e)
    • S(e);::P(C)
    • S(e);N_SPINP(d)::P(C)
  • Tries
    • Try
      • Q(H);CHECK,N_PINP(d)
      • Vars
        • S(e);XQ(H)::P(C)
        • P(d);OGATEB,P_SPINP(d),SBLOCK::QAB(H)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • Q(H);N_PINP(d)
    • Vars
      • S(e);CHECK,OGATE::P(D),XS(e)
      • K(b);P-FLIGHT,P_SPINS(e)::QAR(H)
      • S(f);N_GUARD,P_SPINP(c)::R1(G),XS(f)
      • S(f);N_GUARD,P_SPINP(c),SBLOCK::R1(G)
      • S(e);::P(C)
      • S(f);N_GUARD,P_SPINP(c)::R1(G)
      • P(d);OGATEB,SBLOCK::QAB(H)


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).