MESON Chess Problem Database

Problem Display
PID: 59142 (2RKR3/N2p2N1/2p1p3/3P4/1p1k1p2/1P1p1B2/3Q4/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Nottinghamshire Guardian, 1889

2RKR3/N2p2N1/2p1p3/3P4/1p1k1p2/1P1p1B2/3Q4/8

#2

9 + 7

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...cxd5
      • 2.Qxf4#
    • 1...exd5
      • 2.Qxb4#
  • Tries
    • 1.Sb5+?
      • 1...Ke5
        • 2.Qb2#
      • 1...cxb5
        • 2.Qxf4#
      • 1...Kc5!
    • 1.Sxc6+?
      • 1...Kc5
        • 2.Qxb4#
      • 1...dxc6!
    • 1.Sf5+?
      • 1...Kc5
        • 2.Qf2#
      • 1...exf5
        • 2.Qxb4#
      • 1...Ke5!
    • 1.Sxe6+?
      • 1...Ke5
        • 2.Qxf4#
      • 1...dxe6!
    • 1.Rxc6?
      • threat
        • 2.Qxf4#
      • 1...Ke5
        • 2.Qb2#
      • 1...e5
        • 2.Sb5#
        • 2.Sf5#
        • 2.Rc4#
        • 2.Qf2#
      • 1...dxc6!
    • 1.Rxe6?
      • threat
        • 2.Qxb4#
      • 1...Kc5
        • 2.Qf2#
      • 1...c5
        • 2.Sb5#
        • 2.Sf5#
        • 2.Qb2#
      • 1...dxe6!
  • Keys
    • 1.Kxd7!
      • 1...Kc5
        • 2.Qf2#
      • 1...Ke5
        • 2.Qb2#
      • 1...cxd5
        • 2.Qxf4#
      • 1...exd5
        • 2.Qxb4#
      • 1...c5
        • 2.Sc6#
      • 1...e5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(e);XP(D)::QAR2(A),XP(d)
    • P(f);XP(D)::QAR2(A),XP(b)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINP(a),P_SPINP(f),S_FLIGHT::QAB(A)
        • P(e);XS(E)::QAR2(A),XP(d)
      • Refutation
        • K(c);N_SPINP(a),P_SPINP(e),S_FLIGHT
    • Try
      • S(E);CHECK,XP(e)
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::QAB1(A),XP(b)
      • Refutation
        • P(g);XS(E)
    • Try
      • S(F);CHECK
      • Vars
        • K(c);N_SPINP(a),P_SPINP(e),S_FLIGHT::QAB(A)
        • P(f);XS(F)::QAR2(A),XP(b)
      • Refutation
        • K(c);N_SPINP(a),P_SPINP(f),S_FLIGHT
    • Try
      • S(F);CHECK,XP(f)
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::QAB1(A),XP(d)
      • Refutation
        • P(g);XS(F)
    • Try
      • R(G);XP(e)
      • Threat
        • QAR2(A),XP(d)
      • Vars
        • K(c);N_SPINP(a),P_SPINP(f),S_FLIGHT::QAB(A)
      • Refutation
        • P(g);XR(G)
    • Try
      • R(I);XP(f)
      • Threat
        • QAR2(A),XP(b)
      • Vars
        • K(c);N_SPINP(a),P_SPINP(e),S_FLIGHT::QAB(A)
      • Refutation
        • P(g);XR(I)
  • Actual
    • K(H);P-FLIGHT,XP(g)
    • Vars
      • K(c);N_SPINP(a),P_SPINP(e),S_FLIGHT::QAB(A)
      • K(c);N_SPINP(a),P_SPINP(f),S_FLIGHT::QAB(A)
      • P(e);XP(D)::QAR2(A),XP(d)
      • P(f);XP(D)::QAR2(A),XP(b)
      • P(e);SBLOCK::S(E)
      • P(f);SBLOCK::S(F)
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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).