MESON Chess Problem Database

Problem Display
PID: 256982 (6b1/3NK3/4p2R/p4pQ1/Bkp3p1/1n1P2r1/R2P1N1b/2B2r2 w - - 0 1)

Maleika, Gerhard

Variantim, 2021

6b1/3NK3/4p2R/p4pQ1/Bkp3p1/1n1P2r1/R2P1N1b/2B2r2

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qb5#
    • 1...e5
      • 2.Rb6#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Qb5#
      • 1...exf5
        • 2.Rb6#
      • 1...Sd4
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...e5
        • 2.Rb6#
      • 1...Sxd2!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qb8#
        • 2.Qxc4#
      • 1...Rxc1
        • 2.Qb8#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Sxd2
        • 2.Bxd2#
      • 1...Rgg1
        • 2.Qxc4#
      • 1...Rg2
        • 2.Qxc4#
      • 1...Re3
        • 2.Qxc4#
      • 1...Rf3
        • 2.Qxc4#
      • 1...Rh3
        • 2.Qxc4#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sc5
        • 2.Qxc4#
      • 1...e5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • P(i);OGATE::QAR1(G)
    • P(j);OGATE::R(H)
  • Tries
    • Try
      • Q(G);XP(i)
      • Threat
        • QAR1(G)
      • Vars
        • P(j);OGATE,XQ(G)::R(H)
        • S(c);N_GUARD::QAB1(G)
        • S(c);N_GUARD::QAB1(G),XS(c)
        • P(j);OGATE::R(H)
      • Refutation
        • S(c);XP(C)
  • Actual
    • Q(G);P_PINP(f)
    • Threat
      • DUALS(2)
    • Vars
      • R(a);XB(A)::QAR(G)
      • R(d);XP(E)::S(D),XR(d)
      • S(c);OGATE,XP(C)::B(A),XS(c)
      • R(d);::QAR1(G),XP(f)
      • S(c);N_GUARD,N_SPINP(f)::QAB(G)
      • S(c);::QAR1(G),XP(f)
      • P(j);OGATE::R(H)
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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).