MESON Chess Problem Database

Problem Display
PID: 23675 (b7/7K/3nNp1N/p3kP2/r7/p3P1n1/B1Q5/4R3 w - - 0 1)

Booth, David (Jr)

Deaf Times, 1912

b7/7K/3nNp1N/p3kP2/r7/p3P1n1/B1Q5/4R3

#2

8 + 8

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.exd4#
    • 1...Rf4
      • 2.exf4#
    • 1...Rg4
      • 2.Sxg4#
    • 1...Sb5
      • 2.Sf7#
    • 1...Sxf5
      • 2.Sf7#
    • 1...Sb7
      • 2.Sf7#
    • 1...Sf7
      • 2.Sxf7#
    • 1...Sc8
      • 2.Sf7#
    • 1...Se8
      • 2.Sf7#
  • Tries
    • 1.Qc3+?
      • 1...Rd4
        • 2.Qxd4#
        • 2.exd4#
      • 1...Ke4!
    • 1.Qc5+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Ke4!
  • Keys
    • 1.e4!
      • threat
        • 2.Sg4#
      • 1...Rxe4
        • 2.Qc3#
      • 1...Bxe4
        • 2.Qc5#
      • 1...Sgxe4
        • 2.Qh2#
      • 1...Sdxe4
        • 2.Qc7#
      • 1...Sdxf5
        • 2.Sf7#
      • 1...Sc4
        • 2.Sf7#
      • 1...Sb5
        • 2.Sf7#
      • 1...Sb7
        • 2.Sf7#
      • 1...Sf7
        • 2.Sxf7#
      • 1...Sc8
        • 2.Sf7#
      • 1...Se8
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(c);OGATE::R(A)+P(D)DCHECK,XR(c)
    • R(c);N_GUARD::S(G),XR(c)
    • S(f);N_GUARD::S(G)
    • S(f);N_GUARD,XP(E)::S(G)
    • S(f);N_GUARD::S(G),XS(f)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::QAR1(C),XB(h)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • P(D);
    • Threat
      • S(G)
    • Vars
      • R(c);N_GUARD,P_SPINR(c),XP(D)::QAB(C)
      • B(h);N_GUARD,P_PINP(E),P_SPINB(h),XP(D)::QAR2(C)
      • S(b);OGATEB,P_SPINS(b),XP(D)::QAB(C)
      • S(f);OGATEB,P_SPINS(f),XP(D)::QAB(C)
      • S(f);N_GUARD,XP(E)::S(G)
      • S(f);N_GUARD::S(G)
      • S(f);N_GUARD::S(G),XS(f)
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).