MESON Chess Problem Database

Problem Display
PID: 73774 (3r2b1/bB6/6Q1/1n4RK/2k4p/B4nR1/1PP3N1/3r2q1 w - - 0 1)

Buchwald, Julius

Chess Problem, 1945

3r2b1/bB6/6Q1/1n4RK/2k4p/B4nR1/1PP3N1/3r2q1

#2

9 + 9

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.R3g4#
      • 2.Qe4#
  • Tries
    • 1.R3g4+?
      • 1...Qd4
        • 2.Se3#
      • 1...R1d4
        • 2.Qd3#
      • 1...R8d4
        • 2.Qxg8#
      • 1...Bd4
        • 2.Rc5#
        • 2.Qc6#
      • 1...Sbd4
        • 2.Ba6#
        • 2.Qa6#
      • 1...Sfd4!
  • Keys
    • 1.R5g4+!
      • 1...Qd4
        • 2.Se3#
      • 1...R1d4
        • 2.Qd3#
      • 1...R8d4
        • 2.Qxg8#
      • 1...Bd4
        • 2.Qc6#
      • 1...Sfd4
        • 2.b3#
      • 1...Sbd4
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::S(C)
        • R(a);P_SPINR(a)::QAB1(H)
        • R(h);P_SPINR(h)::QAB(H),XB(i)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • R(F);CHECK
    • Vars
      • Q(b);P_SPINQ(b)::S(C)
      • R(a);P_SPINR(a)::QAB1(H)
      • R(h);P_SPINR(h)::QAB(H),XB(i)
      • B(g);P_SPINB(g)::QAR2(H)
      • S(c);P_SPINS(c)::P(A)
      • S(f);P_SPINS(f),S_CUTB(g),S_CUTQ(b),S_CUTR(a),S_CUTR(h),S_CUTS(c)::QAB(H)
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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).