MESON Chess Problem Database

Problem Display
PID: 182281 (B3n3/2p5/4R3/6pn/K3Nk2/b7/2Q4P/3R4 w - - 0 1)

Thompson, Walter Hood

Les Tours de Force sur l'Echiquier, 1906

B3n3/2p5/4R3/6pn/K3Nk2/b7/2Q4P/3R4

#2

7 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qf2#
    • 1...g4
      • 2.Qf2#
  • Tries
    • 1.Rf1+?
      • 1...Ke3
        • 2.Qd2#
      • 1...Kg4!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Ke3
        • 2.Qf2#
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kg4
        • 2.Sf2#
      • 1...Kf5
        • 2.Sc5#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Bb2
        • 2.Sc3#
      • 1...Bc5
        • 2.Sxc5#
      • 1...Bd6
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sxd6#
        • 2.Sf6#
      • 1...Shf6
        • 2.Sxf6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sef6
        • 2.Sxf6#
      • 1...g4
        • 2.Qf2#
      • 1...c5
        • 2.Sxc5#
      • 1...c6
        • 2.Sd2#

This is a version of 2728

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(B)
    • P(c);SBLOCK::QAR2(B)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(A);
    • Threat
      • DUALS(7)
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • K(b);P-FLIGHT::B(G)+S(E),DCHECK,XP(c)
      • K(b);P-FLIGHT::R(A)+S(E),DCHECK
      • K(b);P-FLIGHT::QAB(B)+S(E)
      • S(d);::R(A)+S(E),XS(d)
      • B(a);::R(A)+S(E)
      • B(a);::R(A)+S(E),XB(a)
      • S(f);::R(A)+S(E),XS(f)
      • P(c);SBLOCK::QAR2(B)
      • P(e);::R(A)+S(E),XP(e)
      • P(e);::R(A)+S(E)
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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).