MESON Chess Problem Database

Problem Display
PID: 44464 (2R1B3/1Nbrp3/1p1p1qR1/3kpn1N/1K2n1Q1/2P1r3/2P1P3/6B1 w - - 0 1)

Kipping, Cyril Stanley

Chess Amateur (The), 1913

2R1B3/1Nbrp3/1p1p1qR1/3kpn1N/1K2n1Q1/2P1r3/2P1P3/6B1

#2

11 + 11

4792 300 Chess Problems 1916
20 De Problemist 1932
56 The Problemist 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qc4#
    • 1...Sxc3
      • 2.Qc4#
    • 1...Seg3
      • 2.Qc4#
    • 1...Sg5
      • 2.Qc4#
  • Tries
    • 1.Sf4+?
      • 1...Kc6
        • 2.Sd8#
      • 1...exf4!
  • Keys
    • 1.c4+!
      • 1...Kd4
        • 2.c3#
      • 1...Kc6
        • 2.Sd8#
      • 1...Ke6
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(b);OGATE::QAB1(F)
    • S(b);OGATE,XP(D)::QAB1(F)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(c);P_SPINB(i),P_SPINR(j),S_FLIGHT::S(I)
      • Refutation
        • P(d);XS(G)
  • Actual
    • P(D);CHECK
    • Vars
      • K(c);P-FLIGHT,P_SPINR(a),P_SPINS(b)::P(B)
      • K(c);P_SPINB(i),P_SPINR(j),S_FLIGHT::S(I)
      • K(c);P_SPINQ(h),P_SPINS(e),S_FLIGHT::S(G)
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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).