MESON Chess Problem Database

Problem Display
PID: 108623 (2Q5/3p4/pp1P4/bkB5/rp6/n1pbN3/r1N1nR1K/5B2 w - - 0 1)

Kiss, Ivan

Vychodoslovenske noviny, 1985

2Q5/3p4/pp1P4/bkB5/rp6/n1pbN3/r1N1nR1K/5B2

#2

8 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sd4#
    • 1...Bf5
      • 2.Sd4#
    • 1...Bg6
      • 2.Sd4#
    • 1...Bh7
      • 2.Sd4#
    • 1...Sc1
      • 2.Sd4#
    • 1...Sg1
      • 2.Sd4#
    • 1...Sg3
      • 2.Sd4#
    • 1...Sd4
      • 2.Sxd4#
    • 1...Sf4
      • 2.Sd4#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Qxd7#
      • 1...Sxd4
        • 2.Sxd4#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Be4!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Qxd7#
      • 1...Bxf5
        • 2.Sd4#
      • 1...bxc5
        • 2.Qxc5#
      • 1...Be4
        • 2.Sd4#
      • 1...Sd4
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(e);P_SPINS(b)::S(B)
    • S(b);N_GUARD,P_SPINB(e)::S(B)
    • S(b);N_GUARD,P_SPINB(e)::S(B),XS(b)
  • Tries
    • Try
      • B(F);
      • Threat
        • QAB(H),XP(l)
      • Vars
        • S(b);P_SPINB(e),XB(F)::S(B),XS(b)
        • B(e);N_GUARD,P_SPINS(b)::R(C),XB(e)
      • Refutation
        • B(e);P_SPINS(b)
  • Actual
    • R(C);
    • Threat
      • QAB(H),XP(l)
    • Vars
      • B(e);P_SPINS(b),XR(C)::S(B)
      • P(k);OGATE,P_SPINP(k),XB(F)::QAR1(H),XP(k)
      • B(e);P_SPINS(b)::S(B)
      • S(b);P_PINS(B),P_SPINB(e)::R(C)+B(F),XS(b)
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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).