MESON Chess Problem Database

Problem Display
PID: 200304 (3R4/2N3nN/K3p3/pQp1kpB1/6n1/b1p2P2/2b4r/q7 w - - 0 1)

Dragoun, Michal

Klemanic, Emil

Salai (Jr), Ladislav

Sachova skladba, 2013

3R4/2N3nN/K3p3/pQp1kpB1/6n1/b1p2P2/2b4r/q7

#2

7 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.f4#
    • 1...Bc1
      • 2.Qxc5#
    • 1...Bb2
      • 2.Qxc5#
  • Keys
    • 1.Qc4!
      • threat
        • 2.Bf4#
        • 2.Qf4#
        • 2.f4#
      • 1...Rxh7
        • 2.Qf4#
        • 2.f4#
      • 1...f4
        • 2.Qxf4#
      • 1...Qc1
        • 2.Qxc3#
      • 1...Qf1
        • 2.Bf4#
      • 1...Rf2
        • 2.Bf4#
        • 2.Qf4#
      • 1...Bd3
        • 2.Bf4#
        • 2.f4#
      • 1...Be4
        • 2.f4#
      • 1...Bc1
        • 2.Qxc5#
      • 1...Sh5
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(b);SBLOCK::P(A)
    • B(d);N_GUARD::QAR2(B),XP(h)
  • Actual
    • Q(B);N_PINP(h)
    • Threat
      • DUALS(3)
    • Vars
      • P(j);::QAB1(B),XP(j)
      • Q(a);N_GUARD::QAB(B),XP(e)
      • Q(a);P_PINQ(B)::B(C)
      • B(b);::P(A)
      • B(d);N_GUARD::QAR2(B),XP(h)
      • S(l);N_GUARD::QAR1(B),XP(k)
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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).