MESON Chess Problem Database

Problem Display
PID: 17632 (4R3/p1p5/Q1pPN1NR/Kn1k1B2/b2rp3/p1n5/2P2B2/8 w - - 0 1)

Fleck, Ferenc

1st Prize, Marienstrass MT, 1948

4R3/p1p5/Q1pPN1NR/Kn1k1B2/b2rp3/p1n5/2P2B2/8

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxc6#
    • 1...Kxd6
      • 2.Rd8#
  • Tries
    • 1.Se7+?
      • 1...Kc4
        • 2.Qxc6#
      • 1...Ke5
        • 2.Bg3#
      • 1...Kxd6!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Qxc6#
      • 1...Kc4
        • 2.Qxc6#
      • 1...Kc5
        • 2.Qxc6#
      • 1...Kxd6
        • 2.Qxc6#
      • 1...Sxd6
        • 2.Re5#
      • 1...Rc4
        • 2.Sf4#
      • 1...c5
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(g);P_SPINS(f),S_FLIGHT::QAR2(E),XP(h)
    • K(g);OGATEB,P-FLIGHT,P_SPINP(h),XP(F)::R(J)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(g);P_SPINS(f),S_FLIGHT::QAR2(E),XP(h)
        • K(g);P-FLIGHT::B(B)
      • Refutation
        • K(g);P-FLIGHT,P_SPINP(h),XP(F)
  • Actual
    • S(G);
    • Threat
      • QAB1(E),XP(h)
    • Vars
      • K(g);P_SPINS(f),S_FLIGHT::QAR2(E),XP(h)
      • K(g);P-FLIGHT,P_SPINR(d)::QAR1(E),XP(h)
      • K(g);P-FLIGHT,P_SPINP(h),XP(F)::QAR1(E),XP(h)
      • S(f);SBLOCK,XP(F)::R1(J)
      • R(d);SBLOCK::S(H)
      • P(h);SBLOCK::B(D)
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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).