MESON Chess Problem Database

Problem Display
PID: 41577 (3R4/2b4n/1p1p4/5p1n/1KPk1P1Q/4qR2/3prB2/1B6 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 2002

3R4/2b4n/1p1p4/5p1n/1KPk1P1Q/4qR2/3prB2/1B6

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf4
      • 2.Qxf4#
    • 1...d5
      • 2.Rxd5#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qe5#
      • 1...Qxf2
        • 2.Rd3#
      • 1...Rxf2
        • 2.Qxe3#
      • 1...Bxd8
        • 2.Qxd6#
      • 1...Sxf4
        • 2.Rxf4#
      • 1...d5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(f);OGATE,P_SPINS(f),XP(F)::QAR2(G),XS(f)
    • P(h);OGATE::R1(H),XP(h)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • Q(c);N_SPINQ(c),OGATE,XB(B)::R1(C)
      • R(b);N_GUARD,N_SPINQ(c),XB(B)::QAB1(G),XQ(c)
      • B(i);N_GUARD,N_SPINP(h),XR(H)::QAR2(G),XP(h)
      • S(f);OGATE,XP(F)::R(C),XS(f)
      • P(h);OGATE::R1(H),XP(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).