MESON Chess Problem Database

Problem Display
PID: 152302 (2Kb1Q1r/1N1pp3/1p1p4/R6p/bkB5/1pq1N3/nP1B4/1n6 w - - 0 1)

Ellerman, Arnoldo

Good Companions (October), 1915

2Kb1Q1r/1N1pp3/1p1p4/R6p/bkB5/1pq1N3/nP1B4/1n6

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qxd6#
    • 1...e6
      • 2.Qxd6#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Sd5#
      • 1...Bc7+
        • 2.Bg8#
      • 1...Qxd2
        • 2.Bd3#
      • 1...Bc6
        • 2.Bd5#
      • 1...d5
        • 2.Sxd5#
      • 1...e6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(k);OGATE,P_SPINP(i)::QAB(H),XP(i)
  • Actual
    • Q(H);
    • Threat
      • S(C)
    • Vars
      • B(l);CHECK,N_PINB(D)::QAR(H)+B(D)
      • Q(d);N_PINB(D),N_SPINQ(d),XB(B)::QAR(H)+B(D)
      • B(e);N_PINB(D)::QAR(H)+B(D)
      • P(i);::S(C),XP(i)
      • P(k);N_GUARD::QAB(H),XP(i)
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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).