MESON Chess Problem Database

Problem Display
PID: 57137 (2K4b/2BQ4/5p2/RN6/2N1k1bR/1pP1r3/q5Pn/5r2 w - - 0 1)

Tucker, HJ

3rd Prize, Brisbane Courier, 1917

2K4b/2BQ4/5p2/RN6/2N1k1bR/1pP1r3/q5Pn/5r2

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Sd2#
    • 1...Qa1
      • 2.Sd2#
    • 1...Qd2
      • 2.Sxd2#
    • 1...Qa3
      • 2.Sd2#
    • 1...Qa4
      • 2.Sd2#
    • 1...Qxa5
      • 2.Sd2#
    • 1...Rf5
      • 2.Qd4#
    • 1...Rxc3
      • 2.Sxc3#
    • 1...Rd3
      • 2.Qe6#
    • 1...Sf3
      • 2.Rxg4#
    • 1...b2
      • 2.Sd2#
  • Tries
    • 1.Rxg4+?
      • 1...Rf4
        • 2.Rxf4#
      • 1...Sxg4!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Qe6#
      • 1...Qxb2
        • 2.Ra4#
      • 1...Rf4
        • 2.Sd6#
      • 1...Rf5
        • 2.Qd4#
      • 1...Sf3
        • 2.Rxg4#
      • 1...f5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::S(C)
    • Q(b);N_GUARD::S(C),XQ(b)
    • Q(b);N_GUARD,XR(E)::S(C)
    • R(a);N_PINQ(H),SBLOCK::QAR1(H)
    • R(e);XP(B)::S(F),XR(e)
    • R(e);SBLOCK::QAR2(H)
    • S(c);N_GUARD,S_CUTR(a)::R(D),XB(g)
    • P(d);S_CUTQ(b)::S(C)
  • Tries
    • Try
      • R(D);CHECK,N_SPINQ(H),XB(g)
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::R1(D),XR(a)
      • Refutation
        • S(c);XR(D)
  • Actual
    • S(C);
    • Threat
      • QAR2(H)
    • Vars
      • Q(b);N_GUARD,XS(C)::R(E)
      • R(a);N_SPINB(g),SBLOCK::S(F)
      • R(a);N_PINQ(H),SBLOCK::QAR1(H)
      • S(c);N_GUARD,S_CUTR(a)::R(D),XB(g)
      • P(h);N_PINQ(H),SBLOCK::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).