MESON Chess Problem Database

Problem Display
PID: 221896 (1B6/N2R3K/4pp2/P1kn1n1R/Q2p2N1/3p3p/1q5b/5b2 w - - 0 1)

Goulty, Allison Howard

British Chess Magazine, 1929

1B6/N2R3K/4pp2/P1kn1n1R/Q2p2N1/3p3p/1q5b/5b2

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Qb5#
    • 1...Qc1
      • 2.Qb5#
    • 1...Qa3
      • 2.Qb5#
    • 1...Qc3
      • 2.Qb5#
    • 1...Qa2
      • 2.Qb5#
    • 1...Qc2
      • 2.Qb5#
    • 1...Qd2
      • 2.Qb5#
    • 1...Qe2
      • 2.Qb5#
    • 1...Qf2
      • 2.Qb5#
    • 1...Qg2
      • 2.Qb5#
    • 1...Qb4
      • 2.Qc6#
    • 1...Qb5
      • 2.Qxb5#
    • 1...Sc3
      • 2.Qxd4#
    • 1...Sb4
      • 2.Qb5#
    • 1...Sg3
      • 2.Bd6#
    • 1...Sd6
      • 2.Rc7#
  • Tries
    • 1.Bd6+?
      • 1...Sxd6
        • 2.Rc7#
      • 1...Bxd6!
    • 1.Rxd5+?
      • 1...Kxd5
        • 2.Qc6#
      • 1...exd5!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Se4#
      • 1...Qxf2
        • 2.Qb5#
      • 1...Qb4
        • 2.Qc6#
      • 1...Sb4
        • 2.Qb5#
      • 1...Qe2
        • 2.Qb5#
      • 1...Bg2
        • 2.Sxd3#
      • 1...Sc3
        • 2.Qxd4#
      • 1...Sg3
        • 2.Bd6#
      • 1...Sd6
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::QAR1(A)
    • Q(b);SBLOCK::QAR1(A)
    • Q(b);N_GUARD::QAR1(A),XQ(b)
    • S(h);P_SPINS(i),S_CUTQ(b)::QAB1(A),XP(f)
    • S(h);P_SPINS(i),S_CUTQ(b)::QAR1(A)
    • S(i);N_GUARD,P_SPINS(h),S_CUTB(c)::B(H)
    • S(i);P_SPINS(h),SBLOCK,S_CUTB(c)::R(F)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • S(i);P_SPINS(h),SBLOCK,XB(H)::R(F)
      • Refutation
        • B(c);XB(H)
    • Try
      • R(F);CHECK,XS(h)
      • Vars
        • K(g);P-FLIGHT,P_SPINS(i),XR(F)::QAB1(A)
      • Refutation
        • P(j);XR(F)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(b);N_GUARD,XS(B)::QAR1(A)
      • Q(b);SBLOCK::QAR1(A)
      • S(h);P_SPINS(i),S_CUTQ(b)::QAR1(A)
      • Q(b);N_GUARD::QAR1(A)
      • B(a);N_GUARD::S(B),XP(d)
      • S(h);P_SPINS(i),S_CUTQ(b)::QAB1(A),XP(f)
      • S(i);N_GUARD,P_SPINS(h),S_CUTB(c)::B(H)
      • S(i);P_SPINS(h),SBLOCK,S_CUTB(c)::R(F)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).