MESON Chess Problem Database

Problem Display
PID: 124523 (4BN1n/5rn1/4pR1p/R1b1B1kP/4P1rp/3P2p1/1p6/1K1Q2N1 w - - 0 1)

Kiss, Janos

Dombovar -Mester csoport, 1970

4BN1n/5rn1/4pR1p/R1b1B1kP/4P1rp/3P2p1/1p6/1K1Q2N1

#2

11 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Sh3#
      • 2.Sh7#
    • 1...Rf4
      • 2.Sh3#
      • 2.Sh7#
    • 1...Rxf6
      • 2.Sh3#
      • 2.Sh7#
    • 1...Ra7
      • 2.Sf3#
      • 2.Sh3#
      • 2.Sh7#
    • 1...Rb7
      • 2.Sf3#
      • 2.Sh3#
      • 2.Sh7#
    • 1...Rc7
      • 2.Sf3#
      • 2.Sh3#
      • 2.Sh7#
    • 1...Rd7
      • 2.Sf3#
      • 2.Sh3#
      • 2.Sh7#
    • 1...Re7
      • 2.Sf3#
      • 2.Sh3#
      • 2.Sh7#
    • 1...Rxf8
      • 2.Sf3#
      • 2.Sh3#
    • 1...Sxh5
      • 2.Sf3#
      • 2.Sh3#
      • 2.Sxe6#
  • Tries
    • 1.Bf4+?
      • 1...Kxh5
        • 2.Rxh6#
      • 1...Rxf4
        • 2.Sh7#
      • 1...Kxf6!
    • 1.Rg6+?
      • 1...Kxh5
        • 2.Qxg4#
      • 1...Sxg6!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qxg4#
      • 1...Kxh5
        • 2.Qxg4#
      • 1...Rgxf4
        • 2.Sh3#
        • 2.Sh7#
      • 1...Rfxf4
        • 2.Sh3#
        • 2.Sh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK,P_PINB(e)
      • Vars
        • K(f);P-FLIGHT,P_SPINR(c),XP(H)::R1(I),XP(h)
        • R(c);XB(G)::S(K)
      • Refutation
        • K(f);N_SPINB(e),S_FLIGHT,XR(I)
    • Try
      • R(I);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINR(c),XP(H)::QAB1(B),XR(c)
      • Refutation
        • S(k);XR(I)
  • Actual
    • R(I);
    • Threat
      • QAR1(B),XR(c)
    • Vars
      • K(f);P-FLIGHT,P_SPINR(c),XP(H)::QAB1(B),XR(c)
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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).