MESON Chess Problem Database

Problem Display
PID: 239540 (3n4/B4p2/2p2Kp1/1P1p1PRN/4kN2/p1p5/Q1Pp1pP1/4b3 w - - 0 1)

Maleika, Gerhard

idee & form, 1992

3n4/B4p2/2p2Kp1/1P1p1PRN/4kN2/p1p5/Q1Pp1pP1/4b3

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...cxb5
      • 2.Qxd5#
  • Tries
    • 1.Qc4+?
      • 1...d4
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qxd4#
      • 1...dxc4!
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Sxc3#
        • 2.Sg3#
        • 2.Rg4#
        • 2.Qc4#
      • 1...cxb5
        • 2.Sxc3#
        • 2.Sg3#
        • 2.Rg4#
      • 1...cxd5
        • 2.Rg4#
      • 1...gxf5
        • 2.Sxc3#
        • 2.Sg3#
        • 2.Qc4#
      • 1...gxh5
        • 2.Qc4#
      • 1...c5
        • 2.Rg4#
        • 2.Qc4#
      • 1...d1Q
        • 2.Sg3#
      • 1...d1S
        • 2.Sg3#
        • 2.Rg4#
        • 2.Qc4#
      • 1...d1B
        • 2.Sg3#
        • 2.Qc4#
      • 1...d1R
        • 2.Sg3#
        • 2.Rg4#
      • 1...f1Q
        • 2.Sxc3#
      • 1...f1S
        • 2.Sxc3#
        • 2.Rg4#
        • 2.Qc4#
      • 1...f1B
        • 2.Sxc3#
        • 2.Rg4#
      • 1...f1R
        • 2.Sxc3#
        • 2.Qc4#
      • 1...Se6
        • 2.Sxc3#
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD,XP(E)::QAB1(A),XP(g)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • P(g);XQ(A)
  • Actual
    • S(D);XP(g)
    • Threat
      • DUALS(4)
    • Vars
      • P(h);XS(D)::R(G)
      • P(i);XS(H)::QAR2(A)
      • P(b);::S(H)
      • P(c);P_PINP(F)::S(D),XP(e)
HTML5 logo

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).