MESON Chess Problem Database

Problem Display
PID: 263966 (8/1K3p2/5Pr1/3k2P1/1P2N1Rn/p1P2BB1/b2PRP2/1n1Q4 w - - 0 1)

Hronec, Jaroslav

4th Prize, Tijdschrift vd KNSB, 1955

8/1K3p2/5Pr1/3k2P1/1P2N1Rn/p1P2BB1/b2PRP2/1n1Q4

#2

13 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf6
      • 2.Sxf6#
    • 1...Bb3
      • 2.Qxb3#
    • 1...Sxc3
      • 2.Sxc3#
    • 1...Sg2
      • 2.Sc5#
      • 2.Sd6#
    • 1...Sf5
      • 2.Sc5#
      • 2.Sd6#
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc6#
      • 1...Kc4
        • 2.Sc5#
      • 1...Ke6
        • 2.Sd6#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...Sxc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);XP(L)::B(F)+S(I),DCHECK,XR(f)
    • B(b);N_GUARD::QAB(A),XB(b)
    • S(a);XP(E)::B(F)+S(I),DCHECK,XS(a)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(e);S_CUTS(d),S_FLIGHT::R(J)+S(I)
      • K(e);S_CUTS(d),S_FLIGHT::R(C)+S(I)
      • R(f);XP(L)::B(F)+S(I),DCHECK,XR(f)
      • S(a);XP(E)::B(F)+S(I),DCHECK,XS(a)
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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).