MESON Chess Problem Database

Problem Display
PID: 72967 (b1Rr4/bnqpN2p/B7/1r2p1QK/1pk5/nNp5/2P5/8 w - - 0 1)

Smit, Geert

Tijdschrift vd KNSB, 1936

b1Rr4/bnqpN2p/B7/1r2p1QK/1pk5/nNp5/2P5/8

#2

7 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qd5#
  • Tries
    • 1.Qg4+?
      • 1...Bd4
        • 2.Qe2#
      • 1...e4+!
  • Keys
    • 1.Qxe5!
      • threat
        • 2.Qd5#
      • 1...Sc5
        • 2.Qd4#
      • 1...Sa5
        • 2.Sxa5#
      • 1...Sd6
        • 2.Sa5#
      • 1...d5
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATE,P_PINQ(C)::QAB1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • B(g);P_SPINB(g)::QAB(C)
      • Refutation
        • P(f);CHECK,P_SPINP(f)
  • Actual
    • Q(C);P_SPINQ(C),XP(f)
    • Threat
      • QAB1(C)
    • Vars
      • S(h);N_PINQ(C),N_SPINQ(i)::QAR1(C)
      • S(h);N_GUARD::S(B),XS(h)
      • S(h);N_GUARD::S(B)
      • P(j);N_PINQ(C)::QAB(C)
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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).